Eaton / Cutler-Hammer BRH340 Miniature Circuit Breaker
- 40A
- 3 Pole
- Plug-On
Quantity
Eaton / Cutler-Hammer BRH340 - 40A 3 Pole Miniature Circuit Breaker
New
Quantity
Description
Built for robust performance, the Eaton BRH340 is a 40-amp, 3-pole miniature circuit breaker designed for commercial environments. It delivers consistent thermal-magnetic overcurrent protection for three-phase systems. The device mounts into Eaton Type BR load centers, utilizing a simple plug-on design. Its box lug terminals are compatible with 14-4 AWG copper or aluminum conductors. With a high interrupting rating of 22 kAIC at 240VAC, it safely clears severe faults and is fully HACR rated.Specifications
| Brand | Eaton / Cutler-Hammer |
|---|---|
| Part Number | BRH340 |
| Series | BRH |
| Amperage | 40A |
| Poles | 3 |
| Mounting Style | Plug-On |
| Voltage | 240VAC |
| Phase | 3 |
| AIC Rating | 22kA @ 240VAC |
| Frame Type | BR |
|---|---|
| Terminal Type | Box Lugs |
| For Use With | Eaton Type BR Load Centers |
| Wire Gauge | 14-4 AWG (Cu/Al) |
| Max Wire | 4 AWG |
| Min Wire | 14 AWG |
| Trip Technology | Thermal Magnetic |
|---|---|
| Trip Function Code | LI |
| Trip Function | Long-Time, Instantaneous |
| Trip Adjustability | Fixed |
| Available Options | Padlock Attachment |
|---|---|
| Standards | UL 489, Federal Specification W-C376, HACR |
| Approval | UL |
| Temp Rating | 60C to 75C |
| Construction Features | Common Trip, HACR Rated, High Interrupting Capacity |
Product FAQs
4 answersWhat load centers are compatible with the BRH340 circuit breaker?
The BRH340 is designed for use in Eaton Type BR load centers. It is also backward compatible with legacy Cutler-Hammer BR series panels. Always verify compatibility using the labeling inside your specific panel.
What is the difference between the Eaton BR340 and the BRH340?
Both are 40A, 3-pole Type BR circuit breakers, but they have different short-circuit interrupting ratings. The standard BR340 is rated for 10kAIC, while the BRH340 is rated for 22kAIC to meet higher fault current requirements.
Is the Eaton BRH340 breaker HACR rated?
Yes, this breaker is HACR rated, making it suitable for use with heating, air conditioning, and refrigeration equipment that requires this specific rating.
Can the BRH340 be used as a back-fed main breaker?
Yes, it can be used as a back-fed main breaker. However, the National Electrical Code (NEC) requires it to be secured with an approved hold-down kit. The specific hold-down kit required depends on your exact load center model.
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