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Eaton / Cutler-Hammer CHF230ST Miniature Circuit Breaker
- 30A
- 2 Pole
- Plug-On
Eaton / Cutler-Hammer
CHF230ST
Miniature Circuit Breaker
Brand
Eaton / Cutler-Hammer
SKU
CHF230ST
Quantity
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Eaton / Cutler-Hammer CHF230ST - 30A 2 Pole Miniature Circuit Breaker
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Description
Engineered for commercial control, the Eaton CHF230ST is a 30A, two-pole breaker featuring a 120VAC shunt trip. This allows users to remotely open the circuit for emergency shutdowns or automated processes. The device mounts into Eaton Type CH load centers via a plug-on configuration. Due to the attached shunt trip module, it requires three 3/4-inch spaces within the panelboard. Rated 10kAIC at 120/240VAC, it includes a visual trip flag to easily identify faults.Specifications
| Brand | Eaton / Cutler-Hammer |
|---|---|
| Part Number | CHF230ST |
| Series | CHF |
| Amperage | 30A |
| 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 Load Centers |
| Wire Gauge | (1) 14-8 AWG (Cu/Al) or (2) 14-10 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 |
| Available Options | Padlock Attachment |
|---|---|
| Accessories | Shunt Trip (120VAC), Trip Flag |
| Standards | HACR Rated, UL 489 |
| Approval | UL, UL 489 |
| Temp Rating | 60C to 75C |
| Construction Features | HACR Rated, Visual Trip Indicator, Common Trip |
Product FAQs
8 answersWhat panelboards accept the Eaton CHF230ST?
It is designed exclusively for Eaton and Cutler-Hammer Type CH load centers. It will not fit in BR series or other manufacturer panels due to its specific 3/4-inch plug-on design.
How many panel spaces does the CHF230ST require?
This breaker requires three 3/4-inch spaces in the panelboard. Two spaces are for the two-pole breaker itself, and the third space accommodates the attached 120VAC shunt trip module.
What is the purpose of the shunt trip on the CHF230ST?
The factory-installed 120VAC shunt trip allows the circuit breaker to be tripped remotely by applying a voltage signal. This is commonly used for emergency shutdowns, fire alarm integration, or automated control systems.
What wire sizes are compatible with the CHF230ST box lugs?
The terminals accept either one 14 to 8 AWG copper or aluminum wire, or two 14 to 10 AWG copper or aluminum wires. Ensure conductors are rated for 60C or 75C.
What does the F in the CHF230ST part number indicate?
The F indicates that this breaker includes a mechanical trip flag. This visual indicator makes it easy to differentiate between a breaker that has tripped due to a fault and one that was manually turned off.
Can I use the CHF230ST to replace an older CH230ST?
Yes, the CHF230ST is the direct replacement for the older CH230ST. It provides the exact same 30A, two-pole protection and shunt trip functionality, but adds the modern visual trip flag feature.
How does the thermal-magnetic trip unit operate on this breaker?
The thermal element provides long-time protection by reacting to mild, prolonged overloads. The magnetic element offers instantaneous protection, tripping the breaker immediately during severe short-circuit conditions.
Does this breaker feature a common trip mechanism?
Yes, it features an internal common trip connection. If a fault occurs on either of the two poles, the mechanism ensures that both poles trip simultaneously to completely disconnect power to the circuit.
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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!