Siemens 3RT2037-1NP30 Power Contactor 65A, 30kW, 175-280V AC/DC, S2 Original Brand New

Overview

The Siemens 3RT2037-1NP30 Power Contactor from the SIRIUS 3RT2 family is a high-performance, compact switching device designed for reliable motor control and load switching in industrial applications. This specific model is a 3-pole, Size S2 contactor, capable of handling a rated operational current of 65 A (AC-3e/AC-3) and a power rating of 30 kW at 400 V.

A key feature of the 3RT2037-1NP30 is its wide-range AC/DC operating coil (175-280 V AC/DC) with an integrated varistor, which provides enhanced surge suppression and flexibility in control voltage applications. It comes equipped with convenient screw terminals and includes 1 Normally Open (NO) and 1 Normally Closed (NC) auxiliary contact as standard. As part of the modular SIRIUS system, it ensures optimum coordination with other Siemens components.

Key Benefit

• High Switching Capacity: Rated at 65 A and 30 kW for industrial motor loads

• Versatile Coil Voltage: Wide control voltage range (175–280 V AC/DC) for global compatibility

• Integrated Surge Protection: Built-in varistor protects coil from voltage spikes

• Auxiliary Contacts Included: 1 NO + 1 NC for flexible control and feedback circuits

• Reliable Siemens Engineering: Manufactured to Siemens’ exacting quality standards

• Compact Form Factor: Size S2 design saves space in control cabinets

Function & Application

• Ideal for use in motor control centers, automation systems, HVAC, conveyor systems, and industrial machinery

• Suitable for AC-3 and AC-3e switching operations, commonly used in pump control, fan systems, and compressors

• Enables smooth and safe switching of 3-phase loads up to 30 kW at 400 V

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