MS165| Motor power kW | Rated current In (A) | Part number | Stock | Price |
|---|---|---|---|---|
| 45 | 73 | 1SAM451000R1018This part | In stock | $155.91 |
| 45 | 80 | 1SAM451000R1019 | In stock | $158.92 |
The ABB MS165-73 motor protection circuit-breaker (SKU: 1SAM451000R1018) delivers reliable manual motor starting and protection for three-phase motors up to 45 kW at 400 V, with an adjustable current range of 62–73 A. Designed for demanding industrial automation and control panel applications, the MS165-73 provides overload, short-circuit, and phase-failure protection in a compact, robust package rated for breaking capacities up to 30 kA at 230 V AC.
The ABB MS165-73 is engineered for motor protection in industrial automation systems, manufacturing plants, HVAC installations, pump stations, compressor drives, and conveyor systems. Its wide current adjustment range makes it ideal for design engineers specifying protection for motors close to the 45 kW boundary, while its multi-market certifications — including UL, CSA, ATEX, and CCC — simplify global machine builder and OEM compliance. The MS165-73 mounts directly in control panels and motor control centers (MCCs), offering a space-efficient 3-pole solution where dependable fault isolation and personnel safety are paramount.
| Product Net Width | 55 mm |
|---|---|
| Product Net Height | 142.65 mm |
| Product Net Depth / Length | 122 mm |
| Product Net Weight | 1 kg |
| Rated Service Short-Circuit Breaking Capacity (Ics) | (230 V AC) 30 kA, (250 V DC) 3 Poles in Series 100 kA, (400 V AC) 30 kA, (440 V AC) 18 kA, (500 V AC) 10 kA, (690 V AC) 6 kA |
|---|---|
| Rated Ultimate Short-Circuit Breaking Capacity (Icu) | (230 V AC) 30 kA, (250 V DC) 100 kA, (400 V AC) 30 kA, (440 V AC) 18 kA, (500 V AC) 10 kA, (690 V AC) 8 kA |
| Rated Instantaneous Short-Circuit Current Setting (Ii) | 1022 A |
| Setting Range | 62 ... 73 A |
| Rated Operational Power AC-3 (Pe) | (400 V) Three Phase 37 kW |
| Rated Operational Power AC-3e (Pe) | (400 V) Three Phase 37 kW |
| Rated Operational Voltage | Main Circuit 690 V AC, Main Circuit 250 V DC |
| Rated Operational Current (Ie) | 73 A |
| Rated Operational Current AC-3 (Ie) | 73 A |
| Rated Operational Current AC-3e (Ie) | 73 A |
| Rated Operational Current DC-5 (Ie) | 73 A |
| Rated Frequency (f) | Main Circuit 50 Hz, Main Circuit 60 Hz |
| Operating Frequency (fsw) | 0 ... 415 Hz |
| Rated Impulse Withstand Voltage (Uimp) | Main Circuit 8 kV |
| Rated Insulation Voltage (Ui) | 1000 V |
| Power Loss | at Rated Operating Conditions AC-3 per Pole 9.6 W |
| Number of Poles | 3P |
| Conventional Free-air Thermal Current (Ith) | Main Circuit 73 A |
| Degree of Protection | Housing IP20, Main Circuit Terminals IP10 |
| Pollution Degree | 3 |
| Electrical Durability | 20000 cycle |
| Mechanical Durability | Nr. Operations 50000 cycle |
| Terminal Type | Screw Terminals |
| Connecting Capacity Main Circuit | Flexible with Ferrule 1/2x 1 ... 35 mm², Flexible with Insulated Ferrule 1/2x 1 ... 35 mm², Flexible 1/2x 1 ... 35 mm², Rigid 1/2x 1 ... 4 mm², Solid 1/2x 1 ... 4 mm², Stranded 1/2x 1 ... 50 mm² |
| Tightening Torque | Main Circuit 4 N·m |
| Wire Stripping Length | Main Circuit 16 mm |
| Recommended Screw Driver | Pozidriv 2 |
| Mounting Position | 1 ... 6 |
| Mounting on DIN Rail | TH35-15 (35 x 15 mm Mounting Rail) acc. to IEC 60715, TH35-7.5 (35 x 7.5 mm Mounting Rail) acc. to IEC 60715 |
| Minimum Mounting Distance | Electrical Conductive Board, Horizontal - Up to 1000 V 1.5 mm, Electrical Conductive Board, Horizontal - Up to 400 V 0 mm, Electrical Conductive Board, Horizontal - Up to 690 V 1.5 mm, Electrical Conductive Board, Vertical 75 mm, Other Device Same Type, Horizontal 0 mm, Other Device Same Type, Vertical 150 mm |
| Contact Position Indication | ON / OFF / TRIP |
| Standards | CSA 22.2 No. 14, IEC/EN 60947-1, IEC/EN 60947-2, IEC/EN 60947-4-1, UL 60947-4-1 |
| Short-Circuit Current Rating (SCCR) UL/CSA | Manual Self-Protected Combination Controllers (Type E), (480Y / 277 V AC) 50 kA, Any UL Listed Fuses or Circuit-Breakers, Group Installations (480 V AC) 50 kA, Any UL Listed Fuses or Circuit-Breakers, Group Installations (600 V AC) 10 kA, Any UL Listed Fuses or Circuit-Breakers, Motor Disconnect (480 V AC) 50 kA, Any UL Listed Fuses or Circuit-Breakers, Motor Disconnect (600 V AC) 10 kA, Any UL Listed Fuses or Circuit-Breakers, Tap Conductor Protection in Group Installations (480Y / 277 V AC) 50 kA, Any UL Listed Fuses or Circuit-Breakers, Tap Conductor Protection in Group Installations (600Y / 347 V AC) 10 kA |
|---|---|
| Maximum Operating Voltage UL/CSA | Main Circuit 600 V AC |
| Horsepower Rating UL/CSA | (200 V AC) Three Phase 20 Hp, (208 V AC) Three Phase 20 Hp, (220 ... 240 V AC) Three Phase 25 Hp, (440 ... 480 V AC) Three Phase 50 Hp, (550 ... 600 V AC) Three Phase 60 Hp |
| Full Load Amps Motor Use | (110 ... 120 V AC) Three Phase 56 A, (200 V AC) Three Phase 62.1 A, (208 V AC) Three Phase 59.4 A, (220 ... 240 V AC) Three Phase 68 A, (440 ... 480 V AC) Three Phase 65 A, (550 ... 600 V AC) Three Phase 62 A |
| Locked Rotor Amps | (200 V AC) Three Phase 334 A, (208 V AC) Three Phase 321 A, (220 ... 240 V AC) Three Phase 365 A, (440 ... 480 V AC) Three Phase 363 A, (550 ... 600 V AC) Three Phase 348 A |
| General Use Rating UL/CSA | (600 V AC) 73 A |
| Connecting Capacity Main Circuit UL/CSA | Flexible 1/2x 16-0 AWG, Stranded 1/2x 16-0 AWG |
| Tightening Torque UL/CSA | Main Circuit 35 in·lb |
| Part number | 1SAM451000R1018 |
|---|---|
| Type designation | MS165-73 |
| Brand | ABB |
| Condition | New, factory sealed |
| Source | ABB and its authorised distributors |
| Warranty | Manufacturer warranty |
| EAN | 4013614536625 |
| ETIM class | EC000074 |
| eCl@ss | 27370401 |
| Minimum Order Quantity | 1 piece |
| Customs Tariff Number | 85362090 |
| Ambient Air Temperature | Operation -25 ... +70 °C, Operation Compensated -25 ... +60 °C, Storage -50 ... +80 °C |
|---|---|
| Ambient Air Temperature Compensation | Yes |
| Maximum Operating Altitude Permissible | 2000 m |
| Resistance to Shock acc. to IEC 60068-2-27 | 11 ms Pulse 25g |
| Resistance to Vibrations | Mounted on Mounting Plate: 5g 3 ... 150 Hz, Mounted on DIN-Rail: 4g 3 ... 150 Hz |
| REACH Declaration | 1SAA963005-4502 |
|---|---|
| RoHS Declaration | 1SAA963006-4501 |
| RoHS Information | Following EU Directive 2011/65/EU and Amendment 2015/863 July 22, 2019 |
| Toxic Substances Control Act - TSCA | 2CMT2023-006539 |
| WEEE B2C / B2B | Business To Business |
| WEEE Category | 5. Small Equipment (No External Dimension More Than 50 cm) |
| ETIM 10 | EC000074 - Motor protection circuit-breaker |
|---|---|
| eClass | V11.0 : 27370401 |
| UNSPSC | 39121521 |
| E-Number (Sweden) | 3110788 |
| Package Level 1 Units | box 1 piece |
|---|---|
| Package Level 1 Width | 64 mm |
| Package Level 1 Depth / Length | 177 mm |
| Package Level 1 Height | 140 mm |
| Package Level 1 Gross Weight | 1.1 kg |
| Package Level 1 EAN | 4013614536625 |
| Package Level 2 Units | carton 12 piece |
| Package Level 2 Width | 330 mm |
| Package Level 2 Depth / Length | 400 mm |
| Package Level 2 Height | 320 mm |
| Package Level 2 Gross Weight | 13 kg |
| Package Level 2 EAN | 4013614537813 |
| Shipping weight | 1.1 kg |
| Ships from | Türkiye |
| Dispatch | 13 Nov |
| Stock | In stock |
Source: manufacturer data · Last verified: 30 Oct 2026
No documents are on file for this part yet.
Ask us for the datasheet| Motor power | Rated current | Part number | Model no | Stock | Dispatch | Price | Add to cart |
|---|---|---|---|---|---|---|---|
| 45 kW | 73 A | 1SAM451000R1018 This part | MS165-73 | In stock | $155.91 | ||
| 45 kW | 80 A | 1SAM451000R1019 | MS165-80 | In stock | $158.92 |
The rated current of MS165-73 is 73 A.
The rated operational voltage of MS165-73 is 400 V AC.
The rated motor power of MS165-73 is 45 kW.
The tariff (HS) code on file for MS165-73 is 85362090.
The EAN (GTIN) of MS165-73 is 4013614536625.
MS165-73 ships from Türkiye. Shipping calculated at checkout · import duties and taxes paid on arrival. Stock items are dispatched within 1–2 business days.
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