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Eaton / Cutler-Hammer CHB340 Miniature Circuit Breaker
- 40A
- 3 Pole
- Bolt-On
Eaton / Cutler-Hammer
CHB340
Miniature Circuit Breaker
Brand
Eaton / Cutler-Hammer
SKU
CHB340
Quantity
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Eaton / Cutler-Hammer CHB340 - 40A 3 Pole Miniature Circuit Breaker
New
Quantity
Quantity
Eaton / Cutler-Hammer CHB340 - 40A 3 Pole Miniature Circuit Breaker
New
Quantity
| Brand | Eaton / Cutler-Hammer |
|---|---|
| Part Number | CHB340 |
| Series | CHB |
| Amperage | 40A |
| Poles | 3 |
| Mounting Style | Bolt-On |
| Voltage | 240VAC |
| Phase | 3 |
| AIC Rating | 10kA @ 240VAC |
| Terminal Type | Box Lugs |
|---|---|
| For Use With | Cutler-Hammer Type PB Panelboards, Type PH Panelboards |
| Wire Gauge | 8-4 AWG |
| Max Wire | 4 AWG |
| Min Wire | 8 AWG |
| Trip Technology | Thermal Magnetic |
|---|---|
| Trip Function Code | LI |
| Trip Function | Long-Time, Instantaneous |
| Trip Adjustability | Fixed Thermal, Fixed Magnetic |
| Available Options | Shunt Trip, Auxiliary Switch, Alarm Switch, Handle Lock |
|---|---|
| Standards | CSA C22.2 No. 5, Federal Specification W-P-131a, UL 489 |
| Approval | CSA, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated, Common Trip |
Sold out
Quantity
Eaton / Cutler-Hammer CHB340 - 40A 3 Pole Miniature Circuit Breaker
Re-Certified
Quantity
| Brand | Eaton / Cutler-Hammer |
|---|---|
| Part Number | CHB340-R |
| Series | CHB |
| Amperage | 40A |
| Poles | 3 |
| Mounting Style | Bolt-On |
| Voltage | 240VAC |
| Phase | 3 |
| AIC Rating | 10kA @ 240VAC |
| Terminal Type | Box Lugs |
|---|---|
| For Use With | Cutler-Hammer Type PB Panelboards, Type PH Panelboards |
| Wire Gauge | 8-4 AWG |
| Max Wire | 4 AWG |
| Min Wire | 8 AWG |
| Trip Technology | Thermal Magnetic |
|---|---|
| Trip Function Code | LI |
| Trip Function | Long-Time, Instantaneous |
| Trip Adjustability | Fixed Thermal, Fixed Magnetic |
| Available Options | Shunt Trip, Auxiliary Switch, Alarm Switch, Handle Lock |
|---|---|
| Standards | CSA C22.2 No. 5, Federal Specification W-P-131a, UL 489 |
| Approval | CSA, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated, Common Trip |
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Description
Providing robust circuit protection, the Eaton CHB340 handles 240VAC commercial electrical systems with ease. This 40-amp, 3-pole thermal-magnetic breaker utilizes a secure bolt-on mounting style to prevent loose connections in high-vibration environments. It is fully compatible with Cutler-Hammer Type PB and PH panelboards. Featuring an HACR rating, this unit is perfectly suited for protecting heating, ventilation, and air conditioning equipment.Specifications
| Brand | Eaton / Cutler-Hammer |
|---|---|
| Part Number | CHB340 |
| Series | CHB |
| Amperage | 40A |
| Poles | 3 |
| Mounting Style | Bolt-On |
| Voltage | 240VAC |
| Phase | 3 |
| AIC Rating | 10kA @ 240VAC |
| Terminal Type | Box Lugs |
|---|---|
| For Use With | Cutler-Hammer Type PB Panelboards, Type PH Panelboards |
| Wire Gauge | 8-4 AWG |
| Max Wire | 4 AWG |
| Min Wire | 8 AWG |
| Trip Technology | Thermal Magnetic |
|---|---|
| Trip Function Code | LI |
| Trip Function | Long-Time, Instantaneous |
| Trip Adjustability | Fixed Thermal, Fixed Magnetic |
| Available Options | Shunt Trip, Auxiliary Switch, Alarm Switch, Handle Lock |
|---|---|
| Standards | CSA C22.2 No. 5, Federal Specification W-P-131a, UL 489 |
| Approval | CSA, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated, Common Trip |
Product FAQs
6 answersWhat panelboards are compatible with the CHB340 circuit breaker?
The Eaton / Cutler-Hammer CHB340 is designed for use in Cutler-Hammer Type PB and Type PH panelboards. It features a bolt-on mounting style specific to these distribution panels.
Can I use a BAB series breaker instead of the CHB340 in my panel?
No. While both are commercial bolt-on breakers, CHB breakers are specifically designed for older series CH PB and PH panelboards. BAB breakers have a different mounting configuration and cannot be used as direct replacements in these panels.
Is the CHB340 suitable for use with HVAC equipment?
Yes, the CHB340 is HACR rated, making it suitable for protecting heating, ventilation, and air conditioning equipment that requires this specific certification.
How many panel spaces does the CHB340 require?
As a 3-pole miniature circuit breaker, the CHB340 utilizes a 3/4-inch per pole format, requiring three spaces within the panelboard chassis.
What type of trip mechanism does the CHB340 utilize?
This breaker uses a fixed thermal magnetic trip mechanism. The thermal element provides long-time protection against overloads, while the magnetic element offers instantaneous protection against short circuits.
Does the CHB340 feature a common trip mechanism?
Yes, it features an internal common trip mechanism. If an overload or short circuit occurs on any single phase, all three poles will trip simultaneously to safely disconnect power to the entire circuit.
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Reviews
Review summary
Customers rate this product 4.8 out of 5 based on 4 reviews.
Total 5 star reviews: 3 Total 4 star reviews: 1 Total 3 star reviews: 0 Total 2 star reviews: 0 Total 1 star reviews: 0
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Rating
4 reviews
- MGMark G.Verified BuyerReviewingEaton / Cutler-Hammer CHB350 - 50A 3 Pole Miniature Circuit BreakerI recommend this productRated 4 out of 5 stars4/8/26Was what I needed
This breaker was exactly what I needed. I did not give it 5 starts because it was SUPER expensive for this frame size breaker.
- WBWilliam B.Verified BuyerReviewingEaton / Cutler-Hammer CHB215 - 15A 2 Pole Miniature Circuit BreakerI recommend this productRated 5 out of 5 stars8/5/25Breakers
Work great, fast shipping. Product as advertised. Good site
- HCHb C.ReviewingEaton / Cutler-Hammer CHB215 - 15A 2 Pole Miniature Circuit BreakerI recommend this productRated 5 out of 5 stars9/9/21CHB BREAKER
Excellent Service, Shipping Fast!!!! Super Breakers
- MMMuhammad M.ReviewingEaton / Cutler-Hammer CHB3100 - 100A 3 Pole Miniature Circuit BreakerI recommend this productRated 5 out of 5 stars12/19/17Nice!
Good experience, On time and fair price.