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Eaton / Cutler-Hammer CHF250ST Miniature Circuit Breaker
- 50A
- 2 Pole
- Plug-On
Eaton / Cutler-Hammer
CHF250ST
Miniature Circuit Breaker
Brand
Eaton / Cutler-Hammer
SKU
CHF250ST
Quantity
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Eaton / Cutler-Hammer CHF250ST - 50A 2 Pole Miniature Circuit Breaker
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Description
Part of the premium CH family, the Eaton CHF250ST provides robust thermal-magnetic protection for commercial and residential systems. This 50A, two-pole miniature circuit breaker handles demanding loads safely. It installs into Eaton Type CH loadcenters using a standard 3/4-inch plug-on mounting style. It also serves as a direct replacement for the legacy CH250ST breaker. Rated for 10 kAIC, this model features a factory-installed 120V shunt trip and a visual trip flag for easy diagnostics.Specifications
| Brand | Eaton / Cutler-Hammer |
|---|---|
| Part Number | CHF250ST |
| Series | CHF |
| Amperage | 50A |
| Poles | 2 |
| Mounting Style | Plug-On |
| Voltage | 120/240VAC |
| Phase | 1 |
| AIC Rating | 10kA @ 120/240VAC |
| Frame Type | CH |
|---|---|
| Terminal Type | Box Lugs |
| For Use With | Type CH Loadcenters |
| Wire Gauge | 14-2 AWG (Cu/Al) |
| Max Wire | 2 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, Handle Lock |
|---|---|
| Accessories | Shunt Trip (120VAC), Trip Flag |
| Standards | HACR Rated, UL 489 |
| Approval | CSA, UL, UL 489 |
| Temp Rating | 60C to 75C |
| Construction Features | Visual Trip Indicator, HACR Rated, Common Trip, Quick-Make/Quick-Break, Trip-Free Mechanism |
Product FAQs
7 answersWhat panels accept the Eaton CHF250ST breaker?
This plug-on breaker is designed exclusively for Eaton and Cutler-Hammer Type CH loadcenters. It will not fit in BR series or other manufacturer panels.
How much panel space does the CHF250ST require?
While it is a 2-pole breaker, the factory-installed shunt trip requires one additional pole space. It occupies a total of three 3/4-inch spaces in a Type CH loadcenter.
What is the purpose of the ST suffix on this breaker?
The ST suffix designates a factory-installed shunt trip. This feature allows the breaker to be tripped remotely when a control voltage signal is applied to the coil, commonly used for emergency stops or remote equipment shutdowns.
What is the control voltage for the shunt trip on the CHF250ST?
The factory-installed shunt trip coil on this model operates on a 120V control signal.
Can the CHF250ST replace a legacy CH250ST breaker?
Yes, the CHF250ST is the direct, upgraded replacement for the legacy Cutler-Hammer CH250ST. It features the same physical dimensions and mounting but adds a visual trip flag.
How does the trip flag function on the CHF series?
The visual trip flag provides a clear mechanical indication when the breaker trips due to an overcurrent or short circuit. This helps easily distinguish a tripped breaker from one that was manually switched to the OFF position.
Does this 2-pole breaker feature an internal common trip?
Yes, it features an internal common trip mechanism that ensures both poles open simultaneously during an overcurrent or short circuit event on either leg.
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Reviews
Review summary
Customers rate this product 4.9 out of 5 based on 45 reviews.
Total 5 star reviews: 44 Total 4 star reviews: 0 Total 3 star reviews: 0 Total 2 star reviews: 0 Total 1 star reviews: 1
Reviews Summary
Generated by AI from 44 most recent customer reviews
Last updated 3/6/26
Customers say these breakers work perfectly and fit exactly as described. Many reviews mention the company stocks hard-to-find parts that local hardware stores don't carry. Users appreciate the competitive pricing, often noting costs are lower than big box stores. Fast shipping and delivery times consistently exceed expectations. The ordering process is described as simple and straightforward. Customers frequently mention they will use the service again and recommend it to others. One negative review cited delayed fulfillment and high return fees affecting their business operations.
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Rating
45 reviews
- JMjim m.Verified BuyerReviewingEaton / Cutler-Hammer CHF120ST - 20A 1 Pole Miniature Circuit BreakerI recommend this productRated 5 out of 5 stars4/6/26Shunt trip
Perfect for the ansul hood suppression shutdown.
- CWCody W.Verified BuyerReviewingEaton / Cutler-Hammer CHF250 - 50A 2 Pole Miniature Circuit BreakerI do not recommend this productRated 1 out of 5 stars2/10/26Product is fine but customer service is not great!
I needed these breakers for an install - first time using the company. They said they had them in stock. Took over a week to fulfil the order and it was 11 or 12 days before I had my hands on them. Tough on my business. Then when I went return them they hit me with so many fees that I was gonna net under $30 on a $104 order. It's too bad this was my first experience with them. I'll be sure to tell my electricians and project managers to never use this company. Short sighted. They won the battle but lost the war with a potential great long term client.
- JOJoseph O.ReviewingEaton / Cutler-Hammer CHFCAF120 - 20A AFCI Miniature Circuit BreakerI recommend this productRated 5 out of 5 stars10/30/22A++;
A++;
- JRJoseph R.ReviewingEaton / Cutler-Hammer CHFAFGF120 - 20A Dual Function Miniature Circuit BreakerI recommend this productRated 5 out of 5 stars8/8/22Just as described
Quick turnaround, right fit
- RBRay B.ReviewingEaton / Cutler-Hammer CHFGFT120PN - 20A GFCI Miniature Circuit BreakerI recommend this productRated 5 out of 5 stars2/24/22Great price and inventory
Looking for a hard to find part, these guys have it. Shopping was fast and easy. Part arrive faster than expected. Will be my go to for breakers!