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Siemens 3RF2320-1AA04 1-Phase Solid State Contactor

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ManufacturerSiemens

Part number3RF2320-1AA04

Type Solid State Contactor

Phases 1-Phase

Current Rating 20 A @ 40°C

Load Voltage 48-460V AC

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1-Phase solid state switching Zero-point switching 20A current rating 48-460V AC load voltage 24V DC control voltage Integrated heat sink

Product description

The Siemens 3RF2320-1AA04 is a 1-phase solid-state contactor from the SIRIUS 3RF2 series, designed for switching resistive loads with zero-point switching. It features a current rating of 20A at 40°C and operates with a load voltage range of 48-460V AC, controlled by 24V DC. This unit includes an integrated heat sink and screw terminals for secure connections, with a 22.5mm width for space-saving installation.

This contactor is ideal for applications requiring reliable, wear-free switching of resistive loads, such as industrial heaters, pumps, and valves. It is well-suited for industrial automation, machine building, and control systems where silent operation, long service life, and minimized electrical interference are crucial. The zero-point switching minimizes harmonic distortion.

Stanlo Automation, your veteran-owned surplus parts distributor, offers the Siemens 3RF2320-1AA04. We provide dependable industrial automation components and responsive customer service to ensure your operational continuity.

Technical specifications

Type	Solid State Contactor
Phases	1-Phase
Current Rating	20 A @ 40°C
Load Voltage	48-460V AC
Control Voltage	24V DC
Switching	Zero-point
Terminals	Screw
Width	22.5mm

Common applications

Resistive load control

Industrial heater control

Pump control

Valve control

Industrial automation

Machine building

Compatible systems

PLC control systems Pump control panels Industrial automation systems

Also known as

Siemens 3RF23201AA04 3RF2320-1AA04 Contactor Siemens 20A SSR

Technical note

Expert tip

This zero-point switching contactor is designed for resistive loads. For inductive loads, consider using a contactor with instantaneous switching or proper protection circuitry.

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Frequently asked questions

What is the power loss for the Siemens 3RF2320-1AA04 solid state contactor?

The Siemens 3RF2320-1AA04 has a typical power loss of 20W at its rated AC current under hot operating conditions. This is a key consideration for thermal management in the control system.