Eaton / Challenger C270 Miniature Circuit Breaker
- 70A
- 2 Pole
- Plug-On
Quantity
Eaton / Challenger C270 - 70A 2 Pole Miniature Circuit Breaker
New
Quantity
Description
Addressing the needs of legacy power systems, the Eaton Challenger C270 offers robust 70-amp thermal-magnetic protection. This two-pole plug-on component handles substantial 120/240V loads. Sourcing correct parts for older infrastructure is crucial. This model mounts into Challenger Type C, Eaton BR, and Westinghouse BR load centers, serving as an exact replacement for BR270 and UBITBC270 breakers. Equipped with a HACR rating, it provides dependable service for HVAC applications.Specifications
| Brand | Eaton / Challenger |
|---|---|
| Part Number | C270 |
| Series | C |
| Amperage | 70A |
| Poles | 2 |
| Mounting Style | Plug-On |
| Voltage | 120/240VAC |
| Phase | 1 |
| AIC Rating | 10kA @ 120/240VAC |
| Terminal Type | Box Lugs |
|---|---|
| For Use With | Challenger Type C Load Centers, Eaton Type BR Load Centers, Westinghouse Type BR Load Centers |
| Wire Gauge | 8 AWG - 1/0 AWG (Cu/Al) |
| Max Wire | 1/0 AWG |
| Min Wire | 8 AWG |
| Trip Technology | Thermal Magnetic |
|---|---|
| Trip Function Code | LI |
| Trip Function | Long-Time, Instantaneous |
| Trip Adjustability | Fixed Thermal, Fixed Magnetic |
| Standards | UL 489 |
|---|---|
| Approval | HACR, UL |
| Temp Rating | 40C |
| Construction Features | Common Trip, HACR Rated |
Product FAQs
8 answersWhat is the modern replacement for the Challenger C270 circuit breaker?
The Eaton BR270 is the direct, UL listed modern replacement for the legacy Challenger C270. It provides the exact same physical dimensions and electrical ratings for use in Challenger Type C panels.
Can I install the Challenger C270 in a Square D or Siemens panel?
No. The C270 is only designed and UL listed for use in Challenger Type C, Eaton Type BR, and Westinghouse Type BR load centers. It is not interchangeable with Square D, Siemens, or GE panels.
Is the Challenger C270 suitable for use with air conditioning equipment?
Yes, this breaker is HACR rated. It is approved for use with heating, air conditioning, and refrigeration systems that require a HACR designated overcurrent protection device.
Does the C270 require bolt-on hardware for installation?
No, the C270 features a plug-on connection. It snaps directly onto the bus bar of compatible 1-inch load centers and secures the wire connections via standard box lugs.
Are Challenger C and Eaton BR breakers interchangeable?
Yes. Eaton acquired the Challenger line, and modern Eaton BR breakers are UL classified as direct replacements for Challenger Type C breakers. The C270 and BR270 share the same 1-inch per pole footprint and bus bar connection.
What is the UBITBC270 cross-reference?
The UBITBC270 is an alternate catalog number used for the same 70A 2-pole breaker. The Challenger C270, Eaton BR270, and UBITBC270 are physically and electrically identical drop-in replacements.
What wire material is compatible with the C270 box lugs?
The box lugs on the C270 are AL/CU rated, meaning they safely accept both copper and aluminum wiring ranging from 8 AWG to 1/0 AWG. Always apply a listed oxide inhibitor when terminating aluminum conductors.
Can the C270 be used on a 120V single-pole circuit?
No. The C270 is a 2-pole breaker designed for 240V or 120/240V single-phase circuits. It occupies two spaces in the panel and is intended for heavy 240V loads or multi-wire branch circuits.
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