Siemens 3RT1056-6NB36

This power contactor, designated with the code 3RT1, operates effectively in AC-3 applications, supporting a rated current of 185 A at 400 V with a maximum operational power of 90 kW. The device is designed for AC and DC control with a voltage range of 21 to 27.3 V. It features a three-pole arrangement and includes two normally open (NO) and two normally closed (NC) auxiliary contacts.

Manufactured for durability, this contactor is suitable for mounting on standard rails, although it is not intended for series installation. It exhibits a typical service life of 10 million operations and is rated for a maximum pollution degree of 3. The contactor's dimensions are 172 mm in height, 120 mm in width, and 170 mm in depth, with a net weight of 3.415 kg.

For control applications, this model incorporates a PLC interface operating at 24 V DC. The control circuit consumes a maximum of 20 mA and features a surge suppressor with varistor design, ensuring reliable operation under varying conditions. The contactor's robust construction allows it to function within an ambient temperature range of -25 to +60 °C, making it suitable for diverse industrial environments.