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Siemens 3RF2390-3AA04 1-Phase Solid-State Contactor

Siemens 3RF2390-3AA04 1-phase solid-state contactor (Phased-out).

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ManufacturerSiemens

Part number3RF2390-3AA04

Type Solid-state Contactor

Phase 1-Phase

AC Current Rating (AC-51) 88 A

Temperature Rating 40 °C

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Veteran-owned

CAGE: 9NK75

Solid-state switching High current rating Silent operation Energy efficient Ring cable connection Legacy component

Product description

The Siemens 3RF2390-3AA04 is a 1-phase solid-state contactor from the 3RF2 series, rated for AC 51 / 88 A at 40 °C. It operates with a main circuit voltage of 48-460 V AC and a control voltage of 24 V DC, featuring a ring cable connection. Please note this is a phased-out product with no direct successor.

This contactor was used in various industrial applications requiring high current switching and solid-state reliability, such as motor control and power distribution. Its robust design provided silent operation and long service life.

Stanlo Automation, a veteran-owned surplus parts distributor, may have the Siemens 3RF2390-3AA04 in stock. While phased out, we strive to provide availability for legacy components critical to maintaining existing systems.

Technical specifications

Type	Solid-state Contactor
Phase	1-Phase
AC Current Rating (AC-51)	88 A
Temperature Rating	40 °C
Main Circuit Voltage	48-460 V AC
Control Voltage	24 V DC
Connection Type	Ring cable
Status	Phased-out

Common applications

Motor control

Industrial automation

Power distribution

HVAC systems

Machine building

Compatible systems

Existing industrial automation systems Motor control circuits Power distribution panels

Also known as

Siemens 3RF2 Series Contactor 3RF2390 Siemens 88A Solid State Contactor Legacy Siemens Contactor

Replaces / compatible with

This is a phased-out product and has no direct successor available from Siemens. For new installations or replacements, consider alternative series or manufacturers based on your application requirements.

Technical note

Expert tip

As this is a phased-out item, ensure that spare parts and technical support for existing installations are considered before specifying it for new projects.

What happens next?

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Frequently asked questions

Is the Siemens 3RF2390-3AA04 still available or supported?

The Siemens 3RF2390-3AA04 is a phased-out product and has no direct successor. While Stanlo Automation may have surplus stock, Siemens no longer offers this model for new sales or actively supports it.