{"title":"Siemens SIRIUS 3RW40 Soft Starters","description":null,"products":[{"product_id":"siemens-3rw4024-1bb14-soft-starter-5-5-kw-12-5-a-200-to-480v-ac","title":"3RW4024-1BB14,  Soft Starter, 5.5 kW, 12.5 A, 200 to 480V AC","description":"\u003cdiv\u003e\n\u003csection\u003e\n\u003ch2\u003eSiemens 3RW40 Soft Starter Series – Overview\u003c\/h2\u003e\n\u003cp\u003eSiemens 3RW40 soft starters are advanced compact motor starting solutions designed for smooth starting and stopping of three-phase asynchronous motors in industrial applications. The 3RW40 series focuses on reducing mechanical stress, limiting inrush current, and providing enhanced motor protection compared to basic soft starters. With integrated bypass functionality and flexible configuration options, Siemens 3RW40 soft starters are well suited for pumps, fans, compressors, conveyors, and general industrial machinery requiring reliable and efficient motor starting.\u003c\/p\u003e\n\u003c\/section\u003e\n\u003chr\u003e\n\u003csection\u003e\n\u003ch3\u003eProduct Description: 3RW4024-1BB14\u003c\/h3\u003e\n\u003cp\u003eThe Siemens 3RW4024-1BB14 is a SIRIUS 3RW40 motor soft starter rated for 12.5 A and specified for a motor power rating of 5.5 kW (reference rating at 400 V). It is designed for three-phase supply voltages from 200 to 480 V AC, making it suitable for common industrial voltage classes. Typical motor compatibility includes small to medium three-phase asynchronous motors used on pumps, fans, compressors and conveyor drives where a 5.5 kW rating or nearby frame sizes apply. This SKU features two‑phase (polarity balancing) control to minimise DC components during starting, integrated bypass contacts to remove semiconductor losses after start-up, and built-in device protection functions to reduce the need for separate overload protection. The unit accepts a control supply on screw terminals (110–230 V AC\/DC as supplied in this product configuration) and is supplied in an IP20 enclosure for panel mounting. Use cases include replacing DOL or wye–delta starting for reduced mechanical shock, limiting inrush current on weak supplies, and providing a compact soft start solution where panel space is limited.\u003c\/p\u003e\n\u003c\/section\u003e\n\u003csection\u003e\n\u003ch3\u003eKey Soft Starter Attributes\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eRated operational current (Ie)\u003c\/th\u003e\n\u003ctd\u003e12.5 A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMotor power range\u003c\/th\u003e\n\u003ctd\u003e5.5 kW (reference rating at 400 V)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSupply voltage\u003c\/th\u003e\n\u003ctd\u003e200–480 V AC (three‑phase)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eControl method\u003c\/th\u003e\n\u003ctd\u003eTwo‑phase (polarity balancing) soft‑start control\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eBuilt-in bypass\u003c\/th\u003e\n\u003ctd\u003eYes — integrated bypass contacts\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMotor protection functions\u003c\/th\u003e\n\u003ctd\u003eIntegrated device protection and solid‑state overload protection features (optional thermistor support on larger sizes)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eEnclosure \/ protection class\u003c\/th\u003e\n\u003ctd\u003eIP20\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/section\u003e\n\u003c\/div\u003e","brand":"Siemens","offers":[{"title":"Default Title","offer_id":51636638777627,"sku":"3RW4024-1BB14","price":294.55,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0903\/7722\/4475\/files\/siemens-3rw4024-1bb14-3rw40-to-480v-ac_106b7f05-33a7-4ce8-b2e5-76da10a1cfed.jpg?v=1777185647"},{"product_id":"siemens-3rw4026-1bb14-soft-starter-11-kw-25-a-200-to-480v-ac","title":"3RW4026-1BB14,  Soft Starter, 11 kW, 25 A, 200 to 480V AC","description":"\u003cdiv\u003e\n\u003csection id=\"series-overview\"\u003e \u003ch2\u003eSiemens 3RW40 Soft Starter Series – Overview\u003c\/h2\u003e \u003cp\u003e Siemens 3RW40 soft starters are advanced compact motor starting solutions designed for smooth starting and stopping of three-phase asynchronous motors in industrial applications. The 3RW40 series focuses on reducing mechanical stress, limiting inrush current, and providing enhanced motor protection compared to basic soft starters. With integrated bypass functionality and flexible configuration options, Siemens 3RW40 soft starters are well suited for pumps, fans, compressors, conveyors, and general industrial machinery requiring reliable and efficient motor starting. \u003c\/p\u003e\n\u003c\/section\u003e \u003chr\u003e \u003csection id=\"product-description\"\u003e \u003ch3\u003eProduct Description: 3RW4026-1BB14\u003c\/h3\u003e \u003cp\u003e The Siemens 3RW4026-1BB14 is a SIRIUS 3RW40 series soft starter in size S0 designed for three-phase motor soft starting on supply voltages from 200 to 480 V AC. It is rated for a continuous operational current of 25 A and supports motor power up to 11 kW at 400 V (5.5 kW at 230 V in standard connection). Control supply for the device is 110–230 V AC\/DC. This model provides two‑phase thyristor control with adjustable start-up voltage (approx. 40–100% of supply) and adjustable current limiting, enabling controlled torque and reduced inrush for pumps, fans, conveyors and other industrial machinery. The unit includes integrated bypass contacts to minimise power loss after start-up and built-in solid-state motor overload \/ intrinsic device protection. With an IP20 enclosure and compact DIN-rail compatible form factor, the 3RW4026-1BB14 is suitable for panel-mounted motor control cabinets where space is limited and reliable, repeatable soft starting is required. \u003c\/p\u003e\n\u003c\/section\u003e \u003csection id=\"technical-attributes\"\u003e \u003ch3\u003eKey Soft Starter Attributes\u003c\/h3\u003e \u003ctable\u003e \u003ctbody\u003e \u003ctr\u003e \u003cth\u003eRated operational current (Ie)\u003c\/th\u003e \u003ctd\u003e25 A\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003cth\u003eMotor power range\u003c\/th\u003e \u003ctd\u003e11 kW at 400 V (5.5 kW at 230 V, standard connection)\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003cth\u003eSupply voltage\u003c\/th\u003e \u003ctd\u003e200 – 480 V AC\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003cth\u003eControl method\u003c\/th\u003e \u003ctd\u003eTwo‑phase thyristor control with adjustable start-up voltage (≈40–100%) and adjustable current limiting\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003cth\u003eBuilt-in bypass\u003c\/th\u003e \u003ctd\u003eYes (integrated bypass contacts)\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003cth\u003eMotor protection functions\u003c\/th\u003e \u003ctd\u003eIntegrated solid-state motor overload and intrinsic device protection\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003cth\u003eEnclosure \/ protection class\u003c\/th\u003e \u003ctd\u003eIP20\u003c\/td\u003e \u003c\/tr\u003e \u003c\/tbody\u003e \u003c\/table\u003e\n\u003c\/section\u003e\n\u003c\/div\u003e","brand":"Siemens","offers":[{"title":"Default Title","offer_id":51636638908699,"sku":"3RW4026-1BB14","price":345.13,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0903\/7722\/4475\/files\/siemens-3rw4026-1bb14-3rw40-to-480v-ac_cd826a84-0ef6-4d57-ae68-914e9b93d8e9.jpg?v=1777185651"},{"product_id":"siemens-3rw4027-1bb14-soft-starter-15-kw-32-a-200-to-480v-ac","title":"3RW4027-1BB14,  Soft Starter, 15 kW, 32 A, 200 to 480V AC","description":"\u003cdiv\u003e\n\u003csection id=\"series-overview\"\u003e \u003ch2\u003eSiemens 3RW40 Soft Starter Series – Overview\u003c\/h2\u003e \u003cp\u003e Siemens 3RW40 soft starters are advanced compact motor starting solutions designed for smooth starting and stopping of three-phase asynchronous motors in industrial applications. The 3RW40 series focuses on reducing mechanical stress, limiting inrush current, and providing enhanced motor protection compared to basic soft starters. With integrated bypass functionality and flexible configuration options, Siemens 3RW40 soft starters are well suited for pumps, fans, compressors, conveyors, and general industrial machinery requiring reliable and efficient motor starting. \u003c\/p\u003e\n\u003c\/section\u003e \u003chr\u003e \u003csection id=\"product-description\"\u003e \u003ch3\u003eProduct Description: 3RW4027-1BB14\u003c\/h3\u003e \u003cp\u003e The Siemens 3RW4027-1BB14 is a SIRIUS 3RW40 soft starter in size S0 rated for 32 A (Ie at 40 °C) and specified for motor ratings of \u003cstrong\u003e15 kW at 400 V\u003c\/strong\u003e (also specified as 7.5 kW at 230 V). It is designed for use on supply voltages from \u003cstrong\u003e200 to 480 V AC\u003c\/strong\u003e and accepts a control\/auxiliary voltage of 110–230 V AC\/DC. Typical motor compatibility covers small-to-medium three-phase asynchronous motors up to the listed power ratings, making this starter suitable for industrial motor starting tasks such as pumps, fans, light conveyors and compressors where controlled torque build-up and reduced mechanical stress are required. Verified model features include an integrated bypass contactor for reduced thermal dissipation during run, built-in motor overload protection and adjustable current limiting for controlled starts and protection against prolonged overloads. The unit is supplied with screw terminals and an IP20 enclosure suitable for control panels and electrical cabinets. \u003c\/p\u003e\n\u003c\/section\u003e \u003csection id=\"technical-attributes\"\u003e \u003ch3\u003eKey Soft Starter Attributes\u003c\/h3\u003e \u003ctable\u003e \u003ctbody\u003e \u003ctr\u003e \u003cth\u003eRated operational current (Ie)\u003c\/th\u003e \u003ctd\u003e32 A (at 40 °C)\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003cth\u003eMotor power range\u003c\/th\u003e \u003ctd\u003e15 kW @ 400 V (7.5 kW @ 230 V)\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003cth\u003eSupply voltage\u003c\/th\u003e \u003ctd\u003e200 – 480 V AC\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003cth\u003eBuilt-in bypass\u003c\/th\u003e \u003ctd\u003eYes (integrated bypass contactor)\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003cth\u003eMotor protection functions\u003c\/th\u003e \u003ctd\u003eOverload protection and adjustable current limiting\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003cth\u003eEnclosure \/ protection class\u003c\/th\u003e \u003ctd\u003eIP20\u003c\/td\u003e \u003c\/tr\u003e \u003c\/tbody\u003e \u003c\/table\u003e\n\u003c\/section\u003e\n\u003c\/div\u003e","brand":"Siemens","offers":[{"title":"Default Title","offer_id":51636638974235,"sku":"3RW4027-1BB14","price":410.07,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0903\/7722\/4475\/files\/siemens-3rw4027-1bb14-3rw40-to-480v-ac_477d836e-08d2-4bce-8636-40aa53af71c3.jpg?v=1777185656"},{"product_id":"siemens-3rw4028-1bb14-soft-starter-18-5-kw-38-a-200-to-480v-ac","title":"3RW4028-1BB14,  Soft Starter, 18.5 kW, 38 A, 200 to 480V AC","description":"\u003cdiv\u003e\n\u003csection id=\"series-overview\"\u003e \u003ch2\u003eSiemens 3RW40 Soft Starter Series – Overview\u003c\/h2\u003e \u003cp\u003e Siemens 3RW40 soft starters are advanced compact motor starting solutions designed for smooth starting and stopping of three-phase asynchronous motors in industrial applications. The 3RW40 series focuses on reducing mechanical stress, limiting inrush current, and providing enhanced motor protection compared to basic soft starters. With integrated bypass functionality and flexible configuration options, Siemens 3RW40 soft starters are well suited for pumps, fans, compressors, conveyors, and general industrial machinery requiring reliable and efficient motor starting. \u003c\/p\u003e\n\u003c\/section\u003e \u003chr\u003e \u003csection id=\"product-description\"\u003e \u003ch3\u003eProduct Description: 3RW4028-1BB14\u003c\/h3\u003e \u003cp\u003e The Siemens 3RW4028-1BB14 is a SIRIUS 3RW40 soft starter rated for 38 A (operating current) and a motor power rating of 18.5 kW at 400 V. It is designed for use on three-phase systems with a main supply voltage range of 200 to 480 V AC, making it suitable across common industrial voltage classes. Typical motor compatibility includes medium-duty asynchronous motors in the approximate 15–22 kW range at 400 V (catalogued as 18.5 kW), which covers many pumps, fans, compressors and small conveyor drives. \u003c\/p\u003e \u003cp\u003e This model uses two-phase control with adjustable start parameters — start voltage can be set (typical 40–100% of supply) and current limiting is available — allowing controlled torque build-up and reduced mechanical stress during acceleration. An integrated bypass contactor removes the semiconductor power loss after the motor reaches running speed, lowering heat in the control cabinet and improving efficiency. The 3RW4028-1BB14 accepts common auxiliary\/control voltages used in industrial panels (catalog documentation lists AC\/DC control possibilities) and is supplied in a compact IP20 enclosure suitable for cabinet mounting. \u003c\/p\u003e \u003cp\u003e Use cases where the 3RW4028-1BB14 is especially effective include centrifugal pump installations that benefit from reduced water hammer, belt conveyors where gentle torque reduces belt slip and wear, and fan or blower applications where soft stopping reduces process disturbance. For procurement and engineering teams, this model is a space-saving alternative to star-delta starters, provides built-in motor overload and adjustable current limiting, and simplifies wiring with its compact form factor and integrated bypass. \u003c\/p\u003e\n\u003c\/section\u003e \u003csection id=\"technical-attributes\"\u003e \u003ch3\u003eKey Soft Starter Attributes\u003c\/h3\u003e \u003ctable\u003e \u003ctbody\u003e \u003ctr\u003e \u003cth\u003eRated operational current (Ie)\u003c\/th\u003e \u003ctd\u003e38 A\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003cth\u003eMotor power range\u003c\/th\u003e \u003ctd\u003e18.5 kW (at 400 V)\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003cth\u003eSupply voltage\u003c\/th\u003e \u003ctd\u003e200 – 480 V AC\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003cth\u003eBuilt-in bypass\u003c\/th\u003e \u003ctd\u003eYes\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003cth\u003eControl method\u003c\/th\u003e \u003ctd\u003eTwo-phase control with adjustable start voltage and current limiting (voltage ramp \/ current limit)\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003cth\u003eEnclosure \/ protection class\u003c\/th\u003e \u003ctd\u003eIP20\u003c\/td\u003e \u003c\/tr\u003e \u003c\/tbody\u003e \u003c\/table\u003e\n\u003c\/section\u003e\n\u003c\/div\u003e","brand":"Siemens","offers":[{"title":"Default Title","offer_id":51636639039771,"sku":"3RW4028-1BB14","price":501.92,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0903\/7722\/4475\/files\/siemens-3rw4028-1bb14-3rw40-to-480v-ac_d361feb1-61a9-45eb-b77a-1257e314a6cd.jpg?v=1777185660"},{"product_id":"siemens-3rw4036-1bb14-soft-starter-22-kw-45-a-200-to-480v-ac","title":"3RW4036-1BB14,  Soft Starter, 22 kW, 45 A, 200 to 480V AC","description":"\u003cdiv\u003e\n\u003csection id=\"series-overview\"\u003e \u003ch2\u003eSiemens 3RW40 Soft Starter Series – Overview\u003c\/h2\u003e \u003cp\u003e Siemens 3RW40 soft starters are advanced compact motor starting solutions designed for smooth starting and stopping of three-phase asynchronous motors in industrial applications. The 3RW40 series focuses on reducing mechanical stress, limiting inrush current, and providing enhanced motor protection compared to basic soft starters. With integrated bypass functionality and flexible configuration options, Siemens 3RW40 soft starters are well suited for pumps, fans, compressors, conveyors, and general industrial machinery requiring reliable and efficient motor starting. \u003c\/p\u003e\n\u003c\/section\u003e \u003chr\u003e \u003csection id=\"product-description\"\u003e \u003ch3\u003eProduct Description: 3RW4036-1BB14\u003c\/h3\u003e \u003cp\u003e The Siemens 3RW4036-1BB14 is a SIRIUS 3RW40 S2 soft starter rated for 45 A (at 40 °C) and specified for motors up to 22 kW at 400 V (11 kW at 230 V) under the standard circuit. It accepts a supply voltage range of 200–480 V AC and is driven by a control\/auxiliary voltage of 110–230 V AC\/DC. Thyristor-based power electronics with an integrated bypass contact system provide smooth voltage ramping and adjustable current limitation to reduce inrush current and mechanical stress during start and stop cycles. Built-in device and motor overload protection, adjustable current limiting, and external reset capability make this SKU suitable for common industrial applications such as pumps, fans, compressors and conveyors where compact footprint and straightforward motor protection are required. The unit is supplied with screw terminals and is intended for panel mounting (IP00), making it a practical choice for engineers and procurement teams looking for a compact, proven soft starter for three-phase asynchronous motors in the 11–22 kW class depending on system voltage. \u003c\/p\u003e\n\u003c\/section\u003e \u003csection id=\"technical-attributes\"\u003e \u003ch3\u003eKey Soft Starter Attributes\u003c\/h3\u003e \u003ctable\u003e \u003ctbody\u003e \u003ctr\u003e \u003cth\u003eRated operational current (Ie)\u003c\/th\u003e \u003ctd\u003e45 A (at 40 °C)\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003cth\u003eMotor power range\u003c\/th\u003e \u003ctd\u003e22 kW at 400 V (11 kW at 230 V) — standard circuit, 40 °C\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003cth\u003eSupply voltage\u003c\/th\u003e \u003ctd\u003e200 … 480 V AC\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003cth\u003eControl method\u003c\/th\u003e \u003ctd\u003eThyristor-based with adjustable current limitation\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003cth\u003eBuilt-in bypass\u003c\/th\u003e \u003ctd\u003eYes (integrated bypass contact system)\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003cth\u003eMotor protection functions\u003c\/th\u003e \u003ctd\u003eMotor overload protection; intrinsic device protection; external reset\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003cth\u003eEnclosure \/ protection class\u003c\/th\u003e \u003ctd\u003eIP00\u003c\/td\u003e \u003c\/tr\u003e \u003c\/tbody\u003e \u003c\/table\u003e\n\u003c\/section\u003e\n\u003c\/div\u003e","brand":"Siemens","offers":[{"title":"Default Title","offer_id":51636639105307,"sku":"3RW4036-1BB14","price":588.29,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0903\/7722\/4475\/files\/siemens-3rw4036-1bb14-3rw40-to-480v-ac_609224d0-c248-4409-b138-7c6164c14843.jpg?v=1777185664"},{"product_id":"siemens-3rw4037-1bb14-soft-starter-30-kw-63-a-200-to-480v-ac","title":"3RW4037-1BB14,  Soft Starter, 30 kW, 63 A, 200 to 480V AC","description":"\u003cdiv\u003e\n\u003csection id=\"series-overview\"\u003e \u003ch2\u003eSiemens 3RW40 Soft Starter Series – Overview\u003c\/h2\u003e \u003cp\u003e Siemens 3RW40 soft starters are advanced compact motor starting solutions designed for smooth starting and stopping of three-phase asynchronous motors in industrial applications. The 3RW40 series focuses on reducing mechanical stress, limiting inrush current, and providing enhanced motor protection compared to basic soft starters. With integrated bypass functionality and flexible configuration options, Siemens 3RW40 soft starters are well suited for pumps, fans, compressors, conveyors, and general industrial machinery requiring reliable and efficient motor starting. \u003c\/p\u003e\n\u003c\/section\u003e \u003chr\u003e \u003csection id=\"product-description\"\u003e \u003ch3\u003eProduct Description: 3RW4037-1BB14\u003c\/h3\u003e \u003cp\u003e The Siemens 3RW4037-1BB14 is a SIRIUS 3RW40 soft starter (S2 size) specified for continuous operation up to 63 A (rated at 40 °C) and rated to start motors up to 30 kW at 400 V (18.5 kW at 230 V, both at 40 °C). It supports a wide mains supply range of 200–480 V AC and uses a separate control supply of 110–230 V AC\/DC for control circuitry. Typical motor compatibility covers three-phase asynchronous motors in the 18.5–30 kW band depending on system voltage and ambient conditions; derating applies at higher ambient temperatures (for example rated current falls to 58 A at 50 °C and 53 A at 60 °C). This model is suited to industrial motor starting tasks such as pumps, fans, compressors and conveyors where reduced mechanical stress, current limiting and overload protection are required. Standout, verified features for the 3RW4037-1BB14 include an integrated bypass contact system to reduce heat dissipation during run, thyristor-based control with adjustable current limitation, intrinsic device protection and built-in motor overload protection — all of which help reduce inrush currents and provide basic motor protection without additional external starters. \u003c\/p\u003e\n\u003c\/section\u003e \u003csection id=\"technical-attributes\"\u003e \u003ch3\u003eKey Soft Starter Attributes\u003c\/h3\u003e \u003ctable\u003e \u003ctbody\u003e \u003ctr\u003e \u003cth\u003eRated operational current (Ie)\u003c\/th\u003e \u003ctd\u003e63 A (rated at 40 °C; 58 A at 50 °C; 53 A at 60 °C)\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003cth\u003eMotor power range\u003c\/th\u003e \u003ctd\u003e30 kW at 400 V (18.5 kW at 230 V) — values at 40 °C\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003cth\u003eSupply voltage\u003c\/th\u003e \u003ctd\u003e200–480 V AC (control supply 110–230 V AC\/DC)\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003cth\u003eControl method\u003c\/th\u003e \u003ctd\u003eThyristor-based with adjustable current limitation\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003cth\u003eBuilt-in bypass\u003c\/th\u003e \u003ctd\u003eYes (integrated bypass contact system)\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003cth\u003eMotor protection functions\u003c\/th\u003e \u003ctd\u003eIntrinsic device protection and motor overload protection\u003c\/td\u003e \u003c\/tr\u003e \u003c\/tbody\u003e \u003c\/table\u003e\n\u003c\/section\u003e\n\u003c\/div\u003e","brand":"Siemens","offers":[{"title":"Default Title","offer_id":51636639170843,"sku":"3RW4037-1BB14","price":718.51,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0903\/7722\/4475\/files\/siemens-3rw4037-1bb14-3rw40-to-480v-ac_28794dc1-9eaf-4958-b6ec-53e9c27b4288.jpg?v=1777185668"},{"product_id":"siemens-3rw4038-1bb14-soft-starter-37-kw-72-a-200-to-480v-ac","title":"3RW4038-1BB14,  Soft Starter, 37 kW, 72 A, 200 to 480V AC","description":"\u003cdiv\u003e\n\u003csection id=\"series-overview\"\u003e \u003ch2\u003eSiemens 3RW40 Soft Starter Series – Overview\u003c\/h2\u003e \u003cp\u003e Siemens 3RW40 soft starters are advanced compact motor starting solutions designed for smooth starting and stopping of three-phase asynchronous motors in industrial applications. The 3RW40 series focuses on reducing mechanical stress, limiting inrush current, and providing enhanced motor protection compared to basic soft starters. With integrated bypass functionality and flexible configuration options, Siemens 3RW40 soft starters are well suited for pumps, fans, compressors, conveyors, and general industrial machinery requiring reliable and efficient motor starting. \u003c\/p\u003e\n\u003c\/section\u003e \u003chr\u003e \u003csection id=\"product-description\"\u003e \u003ch3\u003eProduct Description: 3RW4038-1BB14\u003c\/h3\u003e \u003cp\u003e The Siemens 3RW4038-1BB14 is a SIRIUS series soft starter rated for 72 A continuous operation and sized for motors up to 37 kW at 400 V (standard circuit). It accepts a wide three-phase supply voltage range of 200–480 V AC and uses a 110–230 V AC\/DC control supply. The device implements two‑phase controlled starting with an adjustable start voltage (40–100% of line voltage) and configurable start\/stop times (0–20 s), providing a voltage-ramp soft start that reduces mechanical stress and limits inrush current for pumps, fans, conveyors and other industrial machines. Built-in bypass contacts reduce on‑losses after start-up, while integrated solid‑state motor overload protection and adjustable current limiting provide basic motor protection without external relays. The compact DIN-rail mountable unit (IP00) is suitable for control panels where space is limited and where a straightforward, reliable motor soft starter is required. \u003c\/p\u003e\n\u003c\/section\u003e \u003csection id=\"technical-attributes\"\u003e \u003ch3\u003eKey Soft Starter Attributes\u003c\/h3\u003e \u003ctable\u003e \u003ctbody\u003e \u003ctr\u003e \u003cth\u003eRated operational current (Ie)\u003c\/th\u003e \u003ctd\u003e72 A\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003cth\u003eMotor power range\u003c\/th\u003e \u003ctd\u003e37 kW at 400 V (22 kW at 230 V)\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003cth\u003eSupply voltage\u003c\/th\u003e \u003ctd\u003e200–480 V AC (three-phase)\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003cth\u003eControl method\u003c\/th\u003e \u003ctd\u003eTwo‑phase voltage ramp (adjustable start voltage 40–100%; start\/stop time 0–20 s)\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003cth\u003eBuilt-in bypass\u003c\/th\u003e \u003ctd\u003eYes (integrated bypass contacts)\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003cth\u003eMotor protection functions\u003c\/th\u003e \u003ctd\u003eIntegrated solid‑state motor overload protection and adjustable current limiting\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003cth\u003eEnclosure \/ protection class\u003c\/th\u003e \u003ctd\u003eIP00\u003c\/td\u003e \u003c\/tr\u003e \u003c\/tbody\u003e \u003c\/table\u003e\n\u003c\/section\u003e\n\u003c\/div\u003e","brand":"Siemens","offers":[{"title":"Default Title","offer_id":51636639236379,"sku":"3RW4038-1BB14","price":820.08,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0903\/7722\/4475\/files\/siemens-3rw4038-1bb14-3rw40-to-480v-ac_9e8f4d37-23b7-47fa-9a17-08cc1945c2a3.jpg?v=1777185672"},{"product_id":"siemens-3rw4046-1bb14-soft-starter-45-kw-80-a-200-to-480v-ac","title":"3RW4046-1BB14,  Soft Starter, 45 kW, 80 A, 200 to 480V AC","description":"\u003cdiv\u003e\n\u003csection id=\"series-overview\"\u003e \u003ch2\u003eSiemens 3RW40 Soft Starter Series – Overview\u003c\/h2\u003e \u003cp\u003e Siemens 3RW40 soft starters are advanced compact motor starting solutions designed for smooth starting and stopping of three-phase asynchronous motors in industrial applications. The 3RW40 series focuses on reducing mechanical stress, limiting inrush current, and providing enhanced motor protection compared to basic soft starters. With integrated bypass functionality and flexible configuration options, Siemens 3RW40 soft starters are well suited for pumps, fans, compressors, conveyors, and general industrial machinery requiring reliable and efficient motor starting. \u003c\/p\u003e\n\u003c\/section\u003e \u003chr\u003e \u003csection id=\"product-description\"\u003e \u003ch3\u003eProduct Description: 3RW4046-1BB14\u003c\/h3\u003e \u003cp\u003e The Siemens 3RW4046-1BB14 is a SIRIUS 3RW40 soft starter sized for medium‑power three‑phase motors. It is rated for an operational current of 80 A and a maximum motor power of 45 kW at 400 V (with lower power ratings at 230 V), operating from a wide supply voltage range of 200–480 V AC. Typical motor compatibility is inline three‑phase asynchronous motors in the 22–45 kW class (dependant on system voltage and installation conditions), making this unit appropriate for pumps, fans, compressors, conveyors and other continuous‑duty industrial loads. The 3RW4046-1BB14 provides adjustable start\/stop ramps and current limiting (starting current limiter) to reduce mechanical stress and peak electrical demand, includes an internal bypass to minimise power dissipation during run, and offers built‑in motor overload protection. These verified features make the model a practical choice when you need a compact soft starter that lowers inrush current, extends motor life, and simplifies panel wiring in industrial motor starting applications. \u003c\/p\u003e\n\u003c\/section\u003e \u003csection id=\"technical-attributes\"\u003e \u003ch3\u003eKey Soft Starter Attributes\u003c\/h3\u003e \u003ctable\u003e \u003ctbody\u003e \u003ctr\u003e \u003cth\u003eRated operational current (Ie)\u003c\/th\u003e \u003ctd\u003e80 A\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003cth\u003eMotor power range\u003c\/th\u003e \u003ctd\u003e45 kW @ 400 V (rated); 22 kW @ 230 V (typical documented values)\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003cth\u003eSupply voltage\u003c\/th\u003e \u003ctd\u003e200–480 V AC (three-phase)\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003cth\u003eControl method\u003c\/th\u003e \u003ctd\u003eAdjustable start\/stop ramps and starting current limiter \/ adjustable current limiting\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003cth\u003eBuilt-in bypass\u003c\/th\u003e \u003ctd\u003eYes (integrated bypass contacts)\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003cth\u003eMotor protection functions\u003c\/th\u003e \u003ctd\u003eIntegrated solid-state motor overload and intrinsic device protection\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003cth\u003eEnclosure \/ protection class\u003c\/th\u003e \u003ctd\u003eIP00\u003c\/td\u003e \u003c\/tr\u003e \u003c\/tbody\u003e \u003c\/table\u003e\n\u003c\/section\u003e\n\u003c\/div\u003e","brand":"Siemens","offers":[{"title":"Default Title","offer_id":51636639301915,"sku":"3RW4046-1BB14","price":911.97,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0903\/7722\/4475\/files\/siemens-3rw4046-1bb14-3rw40-to-480v-ac_6d062b83-aa2a-48f6-befb-cda467c20249.jpg?v=1777185676"},{"product_id":"siemens-3rw4047-1bb14-soft-starter-55-kw-106-a-200-to-480v-ac","title":"3RW4047-1BB14,  Soft Starter, 55 kW, 106 A, 200 to 480V AC","description":"\u003cdiv\u003e\n\u003csection id=\"series-overview\"\u003e \u003ch2\u003eSiemens 3RW40 Soft Starter Series – Overview\u003c\/h2\u003e \u003cp\u003e Siemens 3RW40 soft starters are advanced compact motor starting solutions designed for smooth starting and stopping of three-phase asynchronous motors in industrial applications. The 3RW40 series focuses on reducing mechanical stress, limiting inrush current, and providing enhanced motor protection compared to basic soft starters. With integrated bypass functionality and flexible configuration options, Siemens 3RW40 soft starters are well suited for pumps, fans, compressors, conveyors, and general industrial machinery requiring reliable and efficient motor starting. \u003c\/p\u003e\n\u003c\/section\u003e \u003chr\u003e \u003csection id=\"product-description\"\u003e \u003ch3\u003eProduct Description: 3RW4047-1BB14\u003c\/h3\u003e \u003cp\u003e The Siemens 3RW4047-1BB14 is a SIRIUS S3 frame motor soft starter rated for 106 A continuous current and specified for up to 55 kW at 400 V (30 kW at 230 V). It is designed for three-phase supply voltages in the 200–480 V AC range and accepts a control supply of 110–230 V AC\/DC, making it suitable for global industrial panels. Typical motor compatibility is mid-size three‑phase induction motors in the 30 kW–55 kW range depending on system voltage; at 400 V it supports motors up to 55 kW, while at 230 V the applicable motor rating is 30 kW. This unit is aimed at applications that benefit from reduced mechanical and electrical stress at start and stop—common uses include pumps, fans, compressors, and conveyors where limiting inrush current, avoiding belt slip or water hammer, and extending drivetrain life are priorities. Model-specific features verified for this SKU include two‑phase control with adjustable start voltage (start-up voltage adjustable between ~40–100% of line), adjustable ramp-up and ramp-down (soft stop) and current limiting, integrated bypass contacts to reduce power loss during run, and built-in electronic motor overload and intrinsic device protection for reliable operation in standard cabinet environments. \u003c\/p\u003e\n\u003c\/section\u003e \u003csection id=\"technical-attributes\"\u003e \u003ch3\u003eKey Soft Starter Attributes\u003c\/h3\u003e \u003ctable\u003e \u003ctbody\u003e \u003ctr\u003e \u003cth\u003eRated operational current (Ie)\u003c\/th\u003e \u003ctd\u003e106 A\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003cth\u003eMotor power range\u003c\/th\u003e \u003ctd\u003e55 kW at 400 V; 30 kW at 230 V\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003cth\u003eSupply voltage\u003c\/th\u003e \u003ctd\u003e200–480 V AC (three‑phase)\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003cth\u003eControl method\u003c\/th\u003e \u003ctd\u003eTwo‑phase control with adjustable start voltage (≈40–100% of line), adjustable ramp times and current limiting\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003cth\u003eBuilt-in bypass\u003c\/th\u003e \u003ctd\u003eYes (integrated bypass contacts)\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003cth\u003eMotor protection functions\u003c\/th\u003e \u003ctd\u003eIntegrated electronic motor overload, adjustable current limiting; optional thermistor motor protection available up to S3\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003cth\u003eEnclosure \/ protection class\u003c\/th\u003e \u003ctd\u003eIP00\u003c\/td\u003e \u003c\/tr\u003e \u003c\/tbody\u003e \u003c\/table\u003e\n\u003c\/section\u003e\n\u003c\/div\u003e","brand":"Siemens","offers":[{"title":"Default Title","offer_id":51636639367451,"sku":"3RW4047-1BB14","price":989.46,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0903\/7722\/4475\/files\/siemens-3rw4047-1bb14-3rw40-to-480v-ac_4ef240e4-19ce-4105-b545-05f87cbc512f.jpg?v=1777185681"}],"url":"https:\/\/stoklink.com\/en-sa\/collections\/siemens-3rw40.oembed","provider":"Stoklink","version":"1.0","type":"link"}