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Siemens 3RF2370-3AA04 1-Phase Solid-State Contactor

Siemens 3RF2370-3AA04 1-phase solid-state contactor.

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ManufacturerSiemens

Part number3RF2370-3AA04

Type Solid-state Contactor

Phase 1-Phase

AC Current Rating (AC-51) 70 A

Temperature Rating 40 °C

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Solid-state switching High operational reliability Silent operation Energy efficient Ring terminal connection Compact design

Product description

The Siemens 3RF2370-3AA04 is a 1-phase solid-state contactor from the 3RF2 series, designed for reliable switching in demanding industrial applications. It features a current rating of AC 51 / 70 A at 40 °C, with a main circuit voltage range of 48-460 V AC and a control voltage of 24 V DC. This model utilizes a ring cable connection.

This contactor is suitable for controlling motors, heating elements, and lighting loads where high switching frequencies, long service life, and silent operation are critical. Its solid-state design eliminates mechanical wear, making it ideal for applications in automation, process control, and machine tools.

Stanlo Automation, a veteran-owned surplus parts distributor, offers the Siemens 3RF2370-3AA04. We provide access to quality industrial components at competitive prices, ensuring you can find the parts you need to maintain and optimize your automated systems.

Technical specifications

Type	Solid-state Contactor
Phase	1-Phase
AC Current Rating (AC-51)	70 A
Temperature Rating	40 °C
Main Circuit Voltage	48-460 V AC
Control Voltage	24 V DC
Connection Type	Ring cable

Common applications

Motor control

Heating systems

Lighting control

Automation systems

Machine tools

Process industries

Panel building

Compatible systems

Motor control applications Industrial automation HVAC systems Lighting control

Also known as

Siemens 3RF2 Series Contactor 3RF2370 Siemens 70A Solid State Contactor 48-460V AC Contactor

Replaces / compatible with

While dimensions and drill patterns have changed since May 21, 2018, this unit serves as a modern replacement for older solid-state contactors in similar applications. Consult Industry Online Support for detailed compatibility.

Technical note

Expert tip

Note that dimensions and drill patterns may have changed since May 21, 2018; refer to Industry Online Support for precise mechanical data.

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Frequently asked questions

What are the voltage and current ratings for the Siemens 3RF2370-3AA04?

The Siemens 3RF2370-3AA04 is rated for 70 A (AC-51) at 40 °C. The main circuit operates on 48-460 V AC, and the control circuit uses 24 V DC. It features a ring cable connection.