{"product_id":"siemens-6ep1961-2ba51-sitop-pse200u-selectivity-module","title":"Siemens 6EP1961-2BA51 SITOP PSE200U 4x3A NEC Class 2 Common Signal Selectivity Module","description":"\u003cp\u003eThe Siemens 6EP1961-2BA51 is a SITOP PSE200U selectivity module that splits a 24 V DC\/12 A input into four individually protected 3 A NEC Class 2 outputs, with a common signal contact reporting a fault on any channel. Each output trips independently at an adjustable 0.5-3 A threshold set via potentiometer, isolating a faulted branch without taking down the other three.\u003c\/p\u003e\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003eOrder Number\u003c\/td\u003e\n\u003ctd\u003e6EP1961-2BA51\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eSiemens\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSeries\u003c\/td\u003e\n\u003ctd\u003eSITOP PSE200U\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Designation\u003c\/td\u003e\n\u003ctd\u003ePSE200U Selectivity Module\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Voltage\u003c\/td\u003e\n\u003ctd\u003e24 V DC (22 ... 30 V)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Current (rated)\u003c\/td\u003e\n\u003ctd\u003e12 A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNumber of Outputs\u003c\/td\u003e\n\u003ctd\u003e4\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutput Current per Output (rated)\u003c\/td\u003e\n\u003ctd\u003e3 A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAdjustable Current Threshold\u003c\/td\u003e\n\u003ctd\u003e0.5 ... 3 A via potentiometer\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eResponse Delay (max)\u003c\/td\u003e\n\u003ctd\u003e5 s\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSignaling\u003c\/td\u003e\n\u003ctd\u003eCommon signal contact, changeover, 0.1 A\/24 V DC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEfficiency\u003c\/td\u003e\n\u003ctd\u003e97%\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Loss (typical)\u003c\/td\u003e\n\u003ctd\u003e9 W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProtection Class IP\u003c\/td\u003e\n\u003ctd\u003eIP20\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Resource Protection Class\u003c\/td\u003e\n\u003ctd\u003eClass III\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAmbient Temperature (Operation)\u003c\/td\u003e\n\u003ctd\u003e-25 ... +60 degC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEnclosure Dimensions (W x H x D)\u003c\/td\u003e\n\u003ctd\u003e72 x 80 x 72 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMounting\u003c\/td\u003e\n\u003ctd\u003eDIN rail EN 60715 35x7.5\/15\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNet Weight\u003c\/td\u003e\n\u003ctd\u003e0.2 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMTBF at 40 degC\u003c\/td\u003e\n\u003ctd\u003e755,915 h\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCountry of Origin\u003c\/td\u003e\n\u003ctd\u003eRO\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003ch2\u003eCertifications \u0026amp; Standards\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eCE\u003c\/li\u003e\n\u003cli\u003eUKCA\u003c\/li\u003e\n\u003cli\u003eEAC\u003c\/li\u003e\n\u003cli\u003eCB\u003c\/li\u003e\n\u003cli\u003eShipbuilding\u003c\/li\u003e\n\u003cli\u003eABS\u003c\/li\u003e\n\u003cli\u003eDNV\u003c\/li\u003e\n\u003cli\u003eEPD\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eSelection Notes\u003c\/h2\u003e\u003cp\u003eThe common signal contact reports one combined fault status for all four channels - pick the 2BA51 variant when the upstream PLC only needs a single alarm input tied to selectivity module health, rather than per-output diagnostics. The 0.5-3 A adjustable threshold lets the same module protect mixed loads from 500 mA sensors up to 3 A field devices without oversizing the whole branch to the highest-current channel. At 97% efficiency and 9 W typical power loss, thermal derating above 60 degC ambient is the main design constraint, not the DIN-rail footprint.\u003c\/p\u003e\u003ch2\u003eApplications\u003c\/h2\u003e\u003cp\u003eDeployed downstream of a 24 V DC\/12 A SITOP power supply to give each of four load groups - sensors, actuators, remote I\/O, HMI - its own current-limited, individually resettable output, so a short on one branch does not pull down the other three or the upstream supply.\u003c\/p\u003e","brand":"Siemens","offers":[{"title":"Default Title","offer_id":53960763834651,"sku":"6EP1961-2BA51","price":157.17,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0903\/7722\/4475\/files\/siemens-6ep1961-2ba51-sitop-pse200u-selectivity-module.png?v=1789780193","url":"https:\/\/stoklink.com\/products\/siemens-6ep1961-2ba51-sitop-pse200u-selectivity-module","provider":"Stoklink","version":"1.0","type":"link"}