Siemens 3RT2037-1AH00 Power Contactor, 65A, 30kW, 400V, 3-Pole, 48V AC Coil, 50Hz, Screw Terminal, Size S2 Original Brand New

Overview

The Siemens 3RT2037-1AH00 is a high-performance power contactor designed for reliable motor control and switching operations. Engineered for AC-3 and AC-3e applications, this 3-pole contactor supports up to 65 A and 30 kW at 400 V, making it ideal for industrial automation, machinery, and power distribution systems. With its 48V AC coil (50 Hz) and auxiliary contacts (1 NO + 1 NC), the 3RT2037-1AH00 ensures precise control, long operational life, and safe electrical performance.

Key Features & Technical Specifications

• Manufacturer: Siemens

• Product Number: 3RT2037-1AH00

• Type: Power Contactor

• Rated Operational Current (AC-3): 65 A

• Rated Power: 30 kW @ 400 V

• Poles: 3-Pole

• Control Voltage: 48 V AC, 50 Hz

• Auxiliary Contacts: 1 Normally Open (NO) + 1 Normally Closed (NC)

• Terminal Type: Screw terminal

• Size: S2

• Application Category: AC-3e / AC-3

• Mounting: DIN rail or screw mounting

• Operating Temperature Range: -25°C to +60°C (typical)

Benefit

• High Reliability: Designed by Siemens for superior contact durability and performance stability.
• Compact Design: Space-saving S2 size suitable for control panels and automation systems.
• Energy Efficient: Optimized coil design minimizes power consumption.
• Versatile Usage: Perfect for motor starters, pumps, compressors, conveyors, and industrial machinery.
• Easy Installation: Screw terminals ensure secure and quick wiring connections.

Functions & Applications

The Siemens 3RT2037-1AH00 functions as an electromechanical switch used to control and protect motors and power circuits. Common applications include:

• Industrial automation systems

• HVAC and pumping systems

• Conveyor and material handling equipment

• Power control panels

• Motor starters and protection units

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