Siemens 3RB1257-0KB00-0FM0

Overload relay, solid state, with integrated thermistor protect. 125...500A DC 24V ground fault MONIT. through connection of external summation current transf. 1 NO/1 NC (OVERC./thermistor) 1 NO/1 NC (ground fault), MONOST. Kloeckner-Moeller, ZWA500 monostable Kloeckner-Moeller, ZWA500 §§§