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Siemens 3RF2390-3AA26 1-Phase Solid-State Contactor

Siemens 3RF2390-3AA26 1-phase solid-state contactor (Phased-out).

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ManufacturerSiemens

Part number3RF2390-3AA26

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 Wide AC control voltage Silent operation Energy efficient Ring cable connection

Product description

The Siemens 3RF2390-3AA26 is a 1-phase solid-state contactor from the 3RF2 series, designed for 88 A (AC-51) at 40 °C. It operates with a main circuit voltage of 48-600 V AC and a wider control voltage range of 110-230 V AC, featuring a ring cable connection. This model is a phased-out product with no successor.

This contactor was utilized in industrial settings requiring high current switching, particularly where a higher AC control voltage was standard. Applications included motor control and large power distribution systems.

Stanlo Automation, a veteran-owned surplus parts distributor, may have the Siemens 3RF2390-3AA26 available. We aim to assist in maintaining older systems by providing access to these legacy components.

Technical specifications

Type	Solid-state Contactor
Phase	1-Phase
AC Current Rating (AC-51)	88 A
Temperature Rating	40 °C
Main Circuit Voltage	48-600 V AC
Control Voltage	110-230 V AC
Connection Type	Ring cable
Status	Phased-out

Common applications

Motor control

Industrial automation

Power distribution

HVAC systems

Machine building

High AC control voltage applications

Compatible systems

Existing industrial automation systems Motor control Power distribution panels Applications with 110-230V AC control

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 with no successor. For replacements, alternative solid-state contactors with similar ratings and control voltage should be considered based on application needs.

Technical note

Expert tip

The higher AC control voltage (110-230V) distinguishes this unit, making it suitable for systems already wired for these voltages, though it is a phased-out part.

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Frequently asked questions

What is the control voltage range for the Siemens 3RF2390-3AA26?

The Siemens 3RF2390-3AA26 solid-state contactor operates with a control voltage range of 110-230 V AC. Its main circuit is rated for 48-600 V AC and 88 A (AC-51) at 40 °C.