The 4130-G411-K4M1-50A is a high-performance single-pole thermal circuit breaker with push-to-reset, trip-free snap action mechanism (R-type TO CBE per EN 60934), designed for threadneck panel mounting with M12x1 knurled nut. It features a 50 A current rating with medium delay characteristic (M1), K4 terminal design (M6x8 screw), and operates at AC 240 V or DC 50 V with an internal resistance of less than 0.01 O. The device is approved to EN 60934 (IEC 60934) standard, offers an interrupting capacity of 800 A (Icn), and maintains insulation resistance greater than 100 MO at DC 500 V. It is suitable for motors, transformers, solenoids, battery chargers, power supplies, appliances, and machinery, with typical life of 500 operations at 2× rated current under resistive conditions at AC 240 V.