Siemens 3RF2 Series Solid State Relay, 20 A Load, DIN Rail Mount, 460 V ac Load, 230V ac Control

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MYR898.32

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RS Stock No.:
758-6914
Distrelec Article No.:
304-09-105
Mfr. Part No.:
3RF2320-1AA24
Manufacturer:
Siemens
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Brand

Siemens

Maximum Load Current

20A

Product Type

Solid State Relay

Mount Type

DIN Rail

Maximum Load Voltage

460V ac

Minimum Load Voltage

48V ac

Minimum Control Voltage

110V ac

Maximum Control Voltage

230V ac

Series

3RF2

Terminal Type

Screw

IP Rating

IP20

Contact Configuration

SPST

Minimum Operating Temperature

-25°C

Switching Function

Zero Cross Switching

Maximum Operating Temperature

60°C

Height

140.5mm

Length

100mm

Width

100mm

Standards/Approvals

UL, RoHS, C-Tick, EAC, CE, CSA

Output Type

Thyristor

Off State Leakage Current

10mA

COO (Country of Origin):
DE

Siemens 3RF2 Series Solid State Contactor, 20A Maximum Load Current, 48 to 460V Load Voltage - 3RF2320-1AA24


This solid state contactor is a single-pole switching device intended for AC load control in industrial environments. It operates with an AC load range of 48 to 460V and accepts an AC control supply of 110 to 230V at 50 to 60Hz. Designed for Snap-on mounting on a 35mm DIN rail, it provides zero-cross switching to reduce electrical stress and is rated to IP20 protection.

Features and Benefits:


• 20A operational current for controlling moderate AC loads
• Zero-cross switching reduces inrush and electromagnetic emissions
• 10mA off-state leakage for lower standby current
• 110 to 230V control voltage minimises Interface complexity
• 600V insulation rating supports higher system voltages

Applications


• Used with motor soft-start systems requiring reduced surge
• Suitable for switching lighting banks
• Can be used for machine tool control panels with DIN-rail mounting
• Ideal for process control where low leakage is required

What control frequency does it accept?


It accepts control supply frequencies of 50Hz and 60Hz.

How is the unit mounted in panels?


It fits on a standard 35mm mounting rail and can be screw-fixed for additional retention.

What conductor sizes can be connected to the main terminals?


Main contacts accept solid or stranded conductors from 1.5 to 6mm² and finely stranded with end processing up to 10mm².

How does ambient temperature affect operation limits?


The device operates between -25°C and +60°C and derates above 40°C.

What transient immunity is provided against surges?


Main-circuit surge resistance is rated to 6kV with specified conducted and radiated immunity in accordance with IEC standards.

Note

Temperature can affect current rating; please consult the data sheet for potential derating.

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