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Siemens 3RT2037-1AF00 S2 Power Contactor - 65A, 30kW, 110V AC

Siemens 3RT2037-1AF00 S2 3-pole power contactor with 110V AC coil.

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ManufacturerSiemens
Part number3RT2037-1AF00
Part Number 3RT2037-1AF00
Manufacturer Siemens
Type Power Contactor
Poles 3
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AC-3e/AC-3 rated 65A current rating 110V AC coil 1 NO + 1 NC auxiliary contacts Screw terminals for main circuit Spring-loaded terminals for control circuit

The Siemens 3RT2037-1AF00 is a 3-pole power contactor engineered for AC-3e/AC-3 duty, rated for 65 A and 30 kW at 400 V. This model features a 110 V AC coil, making it suitable for standard industrial AC control circuits. It comes equipped with 1 normally open (NO) and 1 normally closed (NC) auxiliary contact for integrated control logic. The main power connections are secured with screw terminals, while the control and auxiliary circuits utilize spring-loaded terminals for efficient installation. This contactor is built in frame size S2.

This contactor is widely deployed in industrial settings for controlling motors, transformers, and capacitor banks. Its 110V AC coil is common in many control panels. Applications span across diverse sectors including manufacturing, HVAC systems, and water treatment plants where reliable switching of loads up to 65A is required.

Stanlo Automation, a veteran-owned provider of surplus industrial automation parts, stocks the Siemens 3RT2037-1AF00. We ensure our customers receive dependable components backed by quality assurance. Choosing Stanlo means accessing cost-effective solutions and maintaining the operational integrity of your automation systems.

Part Number3RT2037-1AF00
ManufacturerSiemens
TypePower Contactor
Poles3
Rated Operational Current AC-3e/AC-365 A
Rated Operational Power AC-3e/AC-330 kW @ 400 V
Coil Voltage110 V AC
Frequency50 Hz
Auxiliary Contacts1 NO + 1 NC
Main Circuit TerminalsScrew
Control Circuit TerminalsSpring-loaded
Frame SizeS2
Motor control
Transformer switching
Capacitor bank switching
HVAC systems
Water treatment
Manufacturing automation
110V AC control systems Industrial machinery Automation panels
Siemens SIRIUS 3RT2037-1AF00 3RT20371AF00 Siemens 110V AC Contactor
This 65A, 110V AC Siemens contactor can replace older models in the 3RT2 series or other brands with matching specifications for motor and power control applications.
Expert tip
While rated for 50 Hz, the 3RT2037-1AF00 contactor can often operate on 60 Hz systems with reduced coil life or specific considerations, though it is optimized for 50 Hz operation.
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What is the coil voltage and frequency for the Siemens 3RT2037-1AF00?
The Siemens 3RT2037-1AF00 operates with a 110 V AC coil voltage and is designed for a frequency of 50 Hz. This makes it suitable for control circuits powered by standard 110V, 50Hz AC supplies commonly found in industrial environments.