Siemens 3RT2037-1NF34 Power Contactor 3-Pole, 65A, 30kW, 83–155V AC/DC Original Brand New

Overview

The Siemens 3RT2037-1NF34 is a high-quality power contactor from the Siemens SIRIUS series, engineered for efficiency, durability, and safety in motor control applications. Designed to handle demanding operations, it delivers exceptional performance in AC-3e/AC-3 categories with a 65 A current capacity and 30 kW motor power rating at 400 V.

Built with integrated varistor protection, this contactor ensures long service life by suppressing voltage spikes. Its auxiliary contacts (2 NO + 2 NC) and screw terminal connections enable simple installation and flexible wiring. The removable auxiliary switch and compact S2 size make it suitable for various industrial environments.

Features

• 3-Pole contactor, AC-3e/AC-3 duty

• Rated operational current: 65 A

• Rated motor power: 30 kW / 400 V

• Coil voltage: 83–155 V AC/DC, 50/60 Hz

• Integrated varistor for overvoltage protection

• 2 Normally Open (NO) + 2 Normally Closed (NC) auxiliary contacts

• Screw terminal connection

• Compact S2 size for easy panel integration

• Removable auxiliary switch for flexibility

Benefit

• Reliable switching performance for motors and loads

• Extended lifespan with integrated varistor protection

• Simple wiring and easy maintenance

• Energy-efficient operation with AC/DC coil compatibility

• Flexible configuration for industrial control systems

• Space-saving design ideal for compact control panels

Application

• Industrial motor control systems

• Automation and process control

• HVAC and building management systems

• Conveyors, pumps, and compressors

• Power distribution and machinery equipment

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