Siemens 3RT1016-1BB42 Contactor

Siemens 3RT1016-1BB42 is a three-pole Sirius power contactor with a 24 V DC coil, rated for AC-3 duty at 9 A and 4 kW when switching 400 V. It features three main normally open contacts and one normally closed auxiliary contact, mounted in frame size S00 with screw-terminal connections. The unit provides IP20 front protection and is designed for panel or cabinet installation, with an ambient operating range of -25 to +60 C and installation altitude up to 2,000 m. Endurance specs are substantial: about 30,000,000 mechanical operating cycles for the main contactor, 10,000,000 cycles with a standard auxiliary contact block, and 5,000,000 cycles with electronics-compatible auxiliary blocks, making it suitable for reliable, repetitive motor control in automation environments. This compact 3RT1 family device is a versatile choice for control panels requiring a durable, readily configurable 3P contactor with screw terminals.