Eaton / Cutler-HammerHMCP150U4C
Eaton / Cutler-Hammer MCP431800R Motor Circuit Protector
- 150A
- 3 Pole
- Unit Mount
Eaton / Cutler-Hammer
MCP431800R
Motor Circuit Protector
Brand
Eaton / Cutler-Hammer
SKU
MCP431800R
Quantity
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Eaton / Cutler-Hammer MCP431800R - 150A 3 Pole Motor Circuit Protector
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Description
Built for heavy-duty motor applications, the MCP431800R is a 150-amp, 3-pole motor circuit protector from Eaton's Series C lineup. It delivers instantaneous magnetic-only protection with an adjustable trip setting between 575A and 1800A, allowing for exact coordination with motor inrush currents. Designed to integrate with Size 4 combination motor starters, this 600VAC-rated unit is an exact fit for existing setups. For new designs, it has been replaced by the HMCP150U4C.Specifications
| Brand | Eaton / Cutler-Hammer |
|---|---|
| Part Number | MCP431800R |
| Series | MCP |
| Amperage | 150A |
| Poles | 3 |
| Mounting Style | Unit Mount |
| Voltage | 600VAC, 250VDC |
| Phase | 3 |
| AIC Rating | 100kA @ 240VAC, 65kA @ 480VAC, 25kA @ 600VAC, 10kA @ 250VDC |
| Amperage Range | 150A |
|---|
| Frame Type | MCP |
|---|---|
| Terminal Type | Lugs |
| For Use With | Eaton / Westinghouse Combination Motor Starters (Size 4), Motor Control Centers |
| Wire Gauge | 4 AWG - 4/0 AWG (Cu/Al) |
| Max Wire | 4/0 AWG |
| Min Wire | 4 AWG |
| Trip Technology | Magnetic Only |
|---|---|
| Trip Function Code | I |
| Trip Function | Instantaneous Only |
| Trip Adjustability | Adjustable Magnetic |
| Available Options | Shunt Trip, Auxiliary Switch, Undervoltage Release, Alarm Switch, Handle Lock |
|---|---|
| Accessories | Standard Aluminum Terminals |
| Standards | CSA C22.2 No. 5.1, IEC 60947-2, UL 489 |
| Approval | CE, CSA, UL, UR |
| Temp Rating | 40C |
| Construction Features | Motor Circuit Protector |
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Reviews
Review summary
Customers rate this product 5.0 out of 5 based on 2 reviews.
Total 5 star reviews: 2 Total 4 star reviews: 0 Total 3 star reviews: 0 Total 2 star reviews: 0 Total 1 star reviews: 0
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Rating
2 reviews
- RBRobert B.Verified BuyerReviewingEaton / Cutler-Hammer MCP0358R - 7A 3 Pole Motor Circuit ProtectorI recommend this productRated 5 out of 5 stars7/29/25Excellent service
The breaker was the exact fit. The old would trip when it was put under load. Now it’s back to normal.
- JDJeryl D.Verified BuyerReviewingEaton / Cutler-Hammer MCP13300R - 30A 3 Pole Motor Circuit ProtectorI recommend this productRated 5 out of 5 stars7/28/25Eaton Breaker
Ordered and received the eaton breakerin great condition
works great