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Siemens 3RF2370-3AA45 1-Phase Solid-State Contactor

Siemens 3RF2370-3AA45 1-phase solid-state contactor.

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ManufacturerSiemens

Part number3RF2370-3AA45

Type Solid-state Contactor

Phase 1-Phase

AC Current Rating (AC-51) 70 A

Temperature Rating 40 °C

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Veteran-owned

CAGE: 9NK75

Solid-state switching High blocking voltage Wide voltage range Silent operation Energy efficient Ring cable connection

Product description

The Siemens 3RF2370-3AA45 is a high-performance 1-phase solid-state contactor from the 3RF2 series, featuring a 1200 V blocking voltage. It is rated for AC 51 / 70 A at 40 °C, with a main circuit voltage range of 48-600 V AC and a control voltage of 4-30 V DC. This model is equipped with a ring cable connection.

This contactor is designed for demanding applications requiring robust switching capabilities and high dielectric strength, such as in motor control, power electronics, and industrial automation. Its solid-state nature ensures long life and precise operation without mechanical wear.

Stanlo Automation, your veteran-owned source for surplus industrial parts, offers the Siemens 3RF2370-3AA45. We ensure you receive reliable components for your automation needs, backed by competitive pricing and efficient service.

Technical specifications

Type	Solid-state Contactor
Phase	1-Phase
AC Current Rating (AC-51)	70 A
Temperature Rating	40 °C
Main Circuit Voltage	48-600 V AC
Control Voltage	4-30 V DC
Blocking Voltage	1200 V
Connection Type	Ring cable

Common applications

Motor control

Industrial automation

Power electronics

HVAC

Machine tools

Process control

High voltage switching

Compatible systems

High voltage motor control Industrial automation Power switching applications HVAC systems

Also known as

Siemens 3RF2 Series Contactor 3RF2370 Siemens 70A 600V Solid State Contactor 1200V Contactor

Replaces / compatible with

This model provides a higher blocking voltage for applications that demand it, serving as an upgrade or replacement for standard solid-state contactors. Dimensions and drill patterns may differ from pre-May 2018 units; consult Industry Online Support.

Technical note

Expert tip

The 1200 V blocking voltage makes this unit suitable for applications with higher surge potential or requiring greater insulation. Verify mechanical specifications if replacing older units.

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Frequently asked questions

What is the blocking voltage of the Siemens 3RF2370-3AA45?

The Siemens 3RF2370-3AA45 solid-state contactor features a blocking voltage of 1200 V. It has a main circuit rating of 48-600 V AC, 70 A (AC-51) at 40 °C, and a control voltage of 4-30 V DC.