Eaton / Cutler-Hammer CHF120 Miniature Circuit Breaker
- 20A
- 1 Pole
- Plug-On
Quantity
Eaton / Cutler-Hammer CHF120 - 20A 1 Pole Miniature Circuit Breaker
New
Quantity
Description
Built for overcurrent protection, the Eaton CHF120 miniature circuit breaker is rated 20A and 120/240VAC. This 1-pole, single-phase breaker has a 10kA interrupting rating at 120/240VAC. It belongs to the CHF series and occupies 1 panel space with a single circuit arrangement. Conductor materials are copper and aluminum, with a minimum wire size of 14 AWG and a maximum of 8 AWG.Specifications
| Brand | Eaton / Cutler-Hammer |
|---|---|
| Part Number | CHF120 |
| Series | CHF |
| Amperage | 20A |
| Poles | 1 |
| 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 | 1x 14-8 AWG, 2x 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 |
|---|---|
| Standards | HACR, UL 489 |
| Approval | UL |
| Temp Rating | 60C to 75C |
| Construction Features | HACR Rated, Visual Trip Indicator |
Product FAQs
6 answersWhat does the Eaton CHF120's 20A rating mean for circuit selection?
The 20A rating is the breaker's rated current for overcurrent protection. Select it with the circuit's load and conductor ampacity in mind, rather than choosing by conductor size alone.
How do I check whether the interrupting rating is sufficient?
The Eaton CHF120 has a 10kA interrupting rating at 120/240VAC. The available fault current at the installation point must not exceed that rating.
What voltage and pole requirements should I check before choosing the Eaton CHF120?
The Eaton CHF120 is rated 120/240VAC and has 1 pole for a single-phase circuit arrangement. Check both the circuit voltage and the required number of poles, since voltage rating alone does not determine the circuit arrangement.
How does the long-time and instantaneous trip function protect the circuit?
The LI trip function combines delayed operation for sustained overcurrent with instantaneous operation for high fault current. This provides different responses to overloads and short circuits rather than treating every overcurrent the same way.
What installation method does the Eaton CHF120 use?
The Eaton CHF120 uses plug-on mounting and a plug-in terminal connection. Use that connection method during installation, and de-energize the circuit before making or removing connections.
What conductor sizes and quantities can I terminate on the Eaton CHF120?
The copper/aluminum wire range is 1x AWG 14 to AWG 8 or 2x AWG 14 to AWG 10. Match conductor size and quantity to the applicable range, and select conductors with adequate ampacity for the circuit.
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Reviews
Review summary
Customers rate this product 4.9 out of 5 based on 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++;
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- 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!