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Eaton / Cutler-Hammer BR220ST Miniature Circuit Breaker
- 20A
- 2 Pole
- Plug-On
Eaton / Cutler-Hammer
BR220ST
Miniature Circuit Breaker
Brand
Eaton / Cutler-Hammer
SKU
BR220ST
Quantity
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Eaton / Cutler-Hammer BR220ST - 20A 2 Pole Miniature Circuit Breaker
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Description
Built for commercial and industrial applications requiring remote shutdown capabilities, this 20A two-pole device features an integrated 120VAC shunt trip mechanism. It installs seamlessly into standard Eaton Type BR load centers and compatible enclosures. Delivering reliable thermal-magnetic protection with a 10kAIC rating, the unit is HACR rated for HVAC equipment and utilizes a common trip design to ensure both poles open simultaneously during a fault condition.Specifications
| Brand | Eaton / Cutler-Hammer |
|---|---|
| Part Number | BR220ST |
| Series | BR |
| Amperage | 20A |
| Poles | 2 |
| Mounting Style | Plug-On |
| Voltage | 120/240VAC |
| Phase | 1 |
| AIC Rating | 10kA @ 120/240VAC |
| Frame Type | BR |
|---|---|
| Terminal Type | Box Lugs |
| For Use With | Type BR Load Centers |
| Wire Gauge | 14-4 AWG (Cu/Al) |
| Max Wire | 4 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 | Padlock Attachment, Handle Lock |
|---|---|
| Accessories | Shunt Trip (120VAC) |
| Standards | Federal Specification W-C375, HACR, UL 489 |
| Approval | UL |
| Temp Rating | 60C to 75C |
| Construction Features | Common Trip, HACR Rated |
Product FAQs
7 answersWhat load centers are compatible with the Eaton BR220ST circuit breaker?
The Eaton BR220ST is designed for use in Eaton and Cutler-Hammer Type BR load centers, as well as compatible spa panels, meter breakers, and subpanels that accept 1-inch plug-on Type BR breakers.
What does the ST suffix indicate on the BR220ST breaker?
The ST suffix indicates that this breaker includes a factory-installed 120VAC shunt trip mechanism. This allows the breaker to be tripped remotely by applying a 120V signal to the shunt trip coil, which is commonly used for emergency shutdowns or remote equipment control.
What wire sizes and materials are accepted by the terminals on the BR220ST?
The box lug terminals on this breaker accept 14 AWG to 4 AWG wire sizes and are rated for both copper (Cu) and aluminum (Al) conductors.
Does the BR220ST feature a common trip mechanism?
Yes, this 2-pole breaker features an internal common trip mechanism. If an overload or short circuit occurs on either pole, or if the shunt trip is activated, both poles will open simultaneously to disconnect power to the entire circuit.
Can the Eaton BR220ST replace older Cutler-Hammer BR series breakers?
Yes, Eaton currently manufactures the BR series, which is fully backward compatible with older Cutler-Hammer and Westinghouse Type BR load centers that require a 2-pole, 20-amp breaker with a shunt trip.
Is the Eaton BR220ST suitable for use with heating and air conditioning equipment?
Yes, Eaton BR series thermal-magnetic breakers are HACR rated, making them suitable for protecting heating, air conditioning, and refrigeration equipment that requires a 20-amp, 2-pole breaker.
What type of trip functions does the BR220ST utilize?
This breaker utilizes thermal-magnetic protection with fixed long-time and instantaneous trip functions. The long-time function protects against sustained overloads, while the instantaneous magnetic function responds immediately to short circuits.
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Reviews
Review summary
Customers rate this product 4.9 out of 5 based on 70 reviews.
Reviews Summary
Generated by AI from 96 most recent customer reviews
Last updated 8/15/25
Customers say these circuit breakers arrive quickly and fit their needs perfectly. Many reviews mention competitive pricing and reliable availability, particularly for hard-to-find models. The products consistently meet expectations for installation and functionality. Reviews frequently note the precise fit and immediate operation of these breakers. Some users appreciate the option of both new and refurbished units.
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Rating
70 reviews
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In this day and age it can be a challenge at times finding a reputable business that fills your order correctly and at the right price and without delay. I am very pleased with your service. Thank you.