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Eaton / Cutler-Hammer CHB125 Miniature Circuit Breaker
- 25A
- 1 Pole
- Bolt-On
Eaton / Cutler-Hammer
CHB125
Miniature Circuit Breaker
Brand
Eaton / Cutler-Hammer
SKU
CHB125
Quantity
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Eaton / Cutler-Hammer CHB125 - 25A 1 Pole Miniature Circuit Breaker
New
Quantity
Quantity
Eaton / Cutler-Hammer CHB125 - 25A 1 Pole Miniature Circuit Breaker
New
Quantity
| Brand | Eaton / Cutler-Hammer |
|---|---|
| Part Number | CHB125 |
| Series | CHB |
| Amperage | 25A |
| Poles | 1 |
| Mounting Style | Bolt-On |
| Voltage | 120/240VAC |
| Phase | 1 |
| AIC Rating | 10kA @ 120/240VAC |
| Frame Type | CHB |
|---|---|
| Terminal Type | Box Lugs |
| For Use With | Cutler-Hammer Type PB Panelboards, Type PH Panelboards |
| Wire Gauge | 14-8 AWG (Cu/Al) |
| Max Wire | 8 AWG |
| Min Wire | 14 AWG |
| Trip Technology | Thermal Magnetic |
|---|---|
| Trip Function Code | LI |
| Trip Function | Long-Time, Instantaneous |
| Trip Adjustability | Fixed Thermal, Fixed Magnetic |
| Available Options | Handle Lock, Handle Tie, Shunt Trip, Auxiliary Switch, Alarm Switch |
|---|---|
| Standards | CSA C22.2 No. 5, Federal Specification W-C-375b, UL 489 |
| Approval | CSA, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated |
Sold out
Quantity
Eaton / Cutler-Hammer CHB125 - 25A 1 Pole Miniature Circuit Breaker
Re-Certified
Quantity
| Brand | Eaton / Cutler-Hammer |
|---|---|
| Part Number | CHB125-R |
| Series | CHB |
| Amperage | 25A |
| Poles | 1 |
| Mounting Style | Bolt-On |
| Voltage | 120/240VAC |
| Phase | 1 |
| AIC Rating | 10kA @ 120/240VAC |
| Frame Type | CHB |
|---|---|
| Terminal Type | Box Lugs |
| For Use With | Cutler-Hammer Type PB Panelboards, Type PH Panelboards |
| Wire Gauge | 14-8 AWG (Cu/Al) |
| Max Wire | 8 AWG |
| Min Wire | 14 AWG |
| Trip Technology | Thermal Magnetic |
|---|---|
| Trip Function Code | LI |
| Trip Function | Long-Time, Instantaneous |
| Trip Adjustability | Fixed Thermal, Fixed Magnetic |
| Available Options | Handle Lock, Handle Tie, Shunt Trip, Auxiliary Switch, Alarm Switch |
|---|---|
| Standards | CSA C22.2 No. 5, Federal Specification W-C-375b, UL 489 |
| Approval | CSA, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated |
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Description
Part of the CHB series, the Eaton CHB125 is a 25-amp, single-pole miniature circuit breaker designed for commercial electrical systems. It utilizes proven thermal-magnetic trip technology to protect branch circuits against overcurrents. Designed for a precise fit, this bolt-on breaker installs into Cutler-Hammer Type PB and PH panelboards. Delivering a 10 kAIC rating at 120/240V, the breaker features LI protection functions. It is HACR rated and accommodates 14-8 AWG wire sizes.Specifications
| Brand | Eaton / Cutler-Hammer |
|---|---|
| Part Number | CHB125 |
| Series | CHB |
| Amperage | 25A |
| Poles | 1 |
| Mounting Style | Bolt-On |
| Voltage | 120/240VAC |
| Phase | 1 |
| AIC Rating | 10kA @ 120/240VAC |
| Frame Type | CHB |
|---|---|
| Terminal Type | Box Lugs |
| For Use With | Cutler-Hammer Type PB Panelboards, Type PH Panelboards |
| Wire Gauge | 14-8 AWG (Cu/Al) |
| Max Wire | 8 AWG |
| Min Wire | 14 AWG |
| Trip Technology | Thermal Magnetic |
|---|---|
| Trip Function Code | LI |
| Trip Function | Long-Time, Instantaneous |
| Trip Adjustability | Fixed Thermal, Fixed Magnetic |
| Available Options | Handle Lock, Handle Tie, Shunt Trip, Auxiliary Switch, Alarm Switch |
|---|---|
| Standards | CSA C22.2 No. 5, Federal Specification W-C-375b, UL 489 |
| Approval | CSA, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated |
Product FAQs
5 answersWhich panelboards are compatible with the CHB125 breaker?
The CHB125 is specifically designed for Cutler-Hammer Type PB and Type PH panelboards. Because it uses a bolt-on mounting configuration, it cannot be installed in standard plug-on load centers.
How does this breaker connect to the panelboard bus?
This is a bolt-on circuit breaker. It fastens directly to the panelboard busbar using screws, which provides a highly secure, vibration-resistant connection suitable for commercial and industrial environments.
What type of trip unit does the CHB125 utilize?
It is equipped with a fixed thermal-magnetic trip unit. The thermal element responds to prolonged overcurrent conditions, while the magnetic element provides instantaneous tripping to protect against short circuits.
Can I use aluminum wiring with the CHB125?
Yes, the box lug terminals are rated for both copper (Cu) and aluminum (Al) conductors ranging from 14 AWG to 8 AWG. Always apply an approved oxide inhibitor when terminating aluminum wire.
Does Eaton still manufacture the Cutler-Hammer CHB series?
Yes, Eaton acquired Cutler-Hammer and continues to produce the CHB series. The CHB125 serves as a direct, exact replacement for older 25-amp, 1-pole CHB breakers in existing PB and PH panels.
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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.