3RT2016-1FB41
SIRIUS S00 power contactor, 24V DC coil with built-in diode protection, 1 set of normally open auxiliary contacts, AC-3 9A/4kW, mechanical life up to 30 million cycles, IP20 protection.
The 3RT2016-1FB41 is a Siemens SIRIUS series power contactor with a built-in suppressed diode. The 24V DC coil paired with the diode reduces induced surges during power outages, extending the lifespan of the control circuit. The auxiliary contacts are fixed as one set of normally open (1NO), conveniently serving as a feedback signal source for the main circuit's operating status. According to the manufacturer's specifications, this model has a mechanical life of up to 30 million operating cycles, with a coil closing/holding power of approximately 4W, resulting in relatively economical power consumption. The main circuit maintains AC-3 9A, 400V/4kW switching capability, IP20 protection rating, and can operate stably within a range of -25°C to +60°C. It also supports DIN rail quick-release mounting.