Eaton / Challenger C240 Miniature Circuit Breaker

Yes. Eaton acquired Challenger, and modern Eaton BR load centers are UL listed to accept Challenger Type C breakers. Always verify that your specific panel label lists Type C breakers as an approved type before installation.

The Eaton BR240 is the direct, UL approved replacement for the Challenger C240. Eaton discontinued the Challenger brand and integrated the Type C line into their BR series.

Yes. When using a plug-on breaker like the C240 in a back-fed main application, the National Electrical Code requires a mechanical hold-down retainer kit to secure it to the load center.

Yes, this breaker is HACR certified, meaning it is approved for use with heating, air conditioning, and refrigeration equipment that requires this specific safety rating.

No. The C240 is only designed for Challenger Type C, Eaton BR, and Westinghouse BR load centers. It is not UL classified for use in Square D, Siemens, or GE panels.

The LI designation stands for Long-Time and Instantaneous trip functions. The long-time function protects against sustained overloads, while the instantaneous function trips the breaker immediately during a severe short circuit.

The thermal component responds to heat buildup from prolonged overloads, while the magnetic component reacts instantly to short circuits. This dual mechanism ensures comprehensive protection for your electrical system.

Yes, a 2-pole breaker can supply a multi-wire branch circuit sharing a neutral, providing two independent 120V circuits. However, both circuits will trip simultaneously if a fault occurs on either leg due to the common internal trip mechanism.