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Siemens 3RF2420-1AC55 3-Phase Solid State Contactor

Siemens 3RF2 Solid State Contactor, 3-Phase, 20A, 230V AC Control

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ManufacturerSiemens

Part number3RF2420-1AC55

Phase 3-Phase

Series 3RF2

Current Rating (AC 51) 20A

Max Temperature 40°C

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Solid-state switching 3-phase operation 20A current rating 230V AC control 1200V blocking voltage Screw terminals

Product description

The Siemens 3RF2420-1AC55 is a 3-phase solid-state contactor designed for industrial applications. It offers AC 51 switching at 20A and 40°C, with a load voltage range of 48-600V AC. This model is controlled by 230V AC and features a high blocking voltage of 1200V, utilizing screw terminals for secure connections.

This 3-phase solid-state contactor is ideal for controlling three-phase motors, compressors, and other industrial equipment where reliable and silent operation is critical. It finds use in manufacturing, packaging, and automation systems.

Stanlo Automation, a veteran-owned distributor of industrial automation surplus, is your source for the Siemens 3RF2420-1AC55. We are committed to providing quality components and timely delivery to minimize your operational disruptions.

Technical specifications

Phase	3-Phase
Series	3RF2
Current Rating (AC 51)	20A
Max Temperature	40°C
Load Voltage	48-600V AC
Control Voltage	230V AC
Blocking Voltage	1200V
Terminal Type	Screw

Common applications

3-phase motor control

Industrial machinery

HVAC systems

Pump stations

Automation solutions

Packaging equipment

Compatible systems

3-phase motor control systems PLC systems with 230V AC output Industrial control panels HVAC control systems

Also known as

Siemens 3RF2420 3RF2420-1AC55 Siemens

Replaces / compatible with

This 3-phase solid-state contactor is designed to replace electro-mechanical contactors in applications requiring low noise, long life, and frequent switching. Verify load and control voltage compatibility.

Technical note

Expert tip

The 230V AC control input is suitable for direct integration with standard industrial control voltages. Ensure the control circuit is properly protected.

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Frequently asked questions

What is the control voltage for the Siemens 3RF2420-1AC55 3-phase solid-state contactor?

The Siemens 3RF2420-1AC55 3-phase solid-state contactor operates with a control voltage of 230V AC. This is a common voltage for control circuits in industrial environments.