Westinghouse UL 489 AC Miniature Circuit Breaker, 1 Amp, Single Pole, C Curve, 10kA, 277V AC, 60V DC, Non-Polarized, UL Listed, DIN Rail Breaker with Thermal Magnetic Trip
UL489 CERTIFIED: Meets National Electrical Code standards to serve as primary thermal overload and short circuit protection. Approved by Underwriters Laboratories for Branch Circuit Protection in US and Canada. UL File No. E517928.