Combination circuit breaker / On-Off switch with standard isolator style two button operation Snap-in panel front mounting Trip-free, snap action mechanism Two-pole, thermally protected Meets the CBE standard EN 60934 (IEC 60934) Typical applications in Motors, transformers, solenoids, extra low voltage wiring systems, office machines, electro-medical equipment, power supplies, communications systems, industrial controls Mounting hole 50.5 x 26 mm