Eaton / Cutler-Hammer BRH370 Miniature Circuit Breaker
- 70A
- 3 Pole
- Plug-On
Quantity
Eaton / Cutler-Hammer BRH370 - 70A 3 Pole Miniature Circuit Breaker
New
Quantity
Description
Part of Eaton's high-interrupting BRH line, this 70A three-pole breaker delivers reliable power distribution for commercial and industrial environments. It utilizes proven thermal-magnetic trip technology to safeguard critical circuits. Designed for seamless compatibility, the breaker installs into standard Eaton Type BR panelboards. The plug-on mounting style ensures a secure connection, while the box lugs accommodate #4 to 1/0 AWG wiring.Specifications
| Brand | Eaton / Cutler-Hammer |
|---|---|
| Series | BRH |
| Amperage | 70A |
| Poles | 3 |
| Mounting Style | Plug-On |
| Voltage | 240VAC |
| Phase | 3 |
| AIC Rating | 22kA @ 240VAC |
| Frame Type | BR |
|---|---|
| Terminal Type | Box Lugs |
| For Use With | Type BR Load Centers |
| Wire Gauge | 4-1/0 AWG |
| Max Wire | 1/0 AWG |
| Min Wire | 4 AWG |
| Trip Technology | Thermal Magnetic |
|---|---|
| Trip Function Code | LI |
| Trip Function | Long-Time, Instantaneous |
| Trip Adjustability | Fixed |
| Available Options | Shunt Trip, Auxiliary Switch, Alarm Switch, Padlock Attachment, Handle Lock |
|---|---|
| Standards | Federal Specification W-C376, UL 489 |
| Approval | UL |
| Temp Rating | 40C |
| Construction Features | Common Trip, HACR Rated, High Interrupting Capacity |
Product FAQs
7 answersWhat type of electrical panel is the BRH370 compatible with?
The Eaton BRH370 is designed for use in 3-phase Eaton Type BR load centers. Because it is a 3-pole breaker, it requires a 3-phase panel and will not work in standard single-phase residential load centers.
How many panel spaces does the BRH370 require?
This breaker requires three standard 1-inch spaces in a compatible Type BR load center.
What does the H in the BRH370 catalog number mean?
The H indicates a high interrupting rating. The BRH370 is rated for 22kAIC at 240V, providing higher fault current protection than standard 10kAIC BR series breakers.
Is the Eaton BRH370 a direct replacement for Cutler-Hammer BRH370?
Yes. Eaton acquired Cutler-Hammer, and the Eaton BRH370 is the exact manufacturer replacement for legacy Cutler-Hammer BRH370 breakers.
Is the BRH370 breaker HACR rated?
Yes, Eaton BR series breakers are HACR rated, making them suitable for use with heating, air conditioning, and refrigeration equipment.
Can I use the BRH370 in older Westinghouse or Challenger panels?
Eaton Type BR breakers are UL listed for use in specific legacy Westinghouse, Challenger, and Bryant panels. You must check your panel's interior label to confirm Type BR breakers are approved for your specific load center.
What type of trip mechanism does the BRH370 use?
It uses a thermal magnetic trip mechanism with fixed long time and instantaneous (LI) trip functions. The thermal element responds to mild overloads, while the magnetic element reacts instantly to severe short circuits.
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