Siemens SIRIUS 3RF2 Series Solid State Relay, 5.2 A Load, DIN Rail Mount, 24 V Load, 480V Control

RS Stock No.:: 213-0454
Mfr. Part No.:: 3RF3405-1BB04
Brand:: Siemens

Siemens SIRIUS 3RF2 Series Solid State Relay, 5.2 A Load, DIN Rail Mount, 24 V Load, 480V Control

Subtotal (1 unit)*

£147.56

(exc. VAT)

£177.07

(inc. VAT)

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2 unit(s) shipping from 19 March 2026

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Units	Per unit
1 +	£147.56

*price indicative

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RS Stock No.:: 213-0454
Mfr. Part No.:: 3RF3405-1BB04
Brand:: Siemens

Specifications

Technical Reference

Legislation and Compliance

Product Details

Find similar products by selecting one or more attributes.

Select all	Attribute	Value
	Brand	Siemens
	Product Type	Solid State Relay
	Maximum Load Current	5.2A
	Mount Type	DIN Rail
	Maximum Load Voltage	24V
	Minimum Load Voltage	15V
	Maximum Control Voltage	480V
	Minimum Control Voltage	48V
	Series	SIRIUS 3RF2
	Terminal Type	Screw
	IP Rating	IP20
	Contact Configuration	2 NO
	Switching Function	Instantaneous Switching
	Minimum Operating Temperature	-25°C
	Maximum Operating Temperature	60°C
	Length	100.8mm
	Width	45 mm
	Height	95mm
	Standards/Approvals	CSA,UL,EAC,RCM,CE,UKCAVDE

	Select all
	Brand Siemens
	Product Type Solid State Relay
	Maximum Load Current 5.2A
	Mount Type DIN Rail
	Maximum Load Voltage 24V
	Minimum Load Voltage 15V
	Maximum Control Voltage 480V
	Minimum Control Voltage 48V
	Series SIRIUS 3RF2
	Terminal Type Screw
	IP Rating IP20
	Contact Configuration 2 NO
	Switching Function Instantaneous Switching
	Minimum Operating Temperature -25°C
	Maximum Operating Temperature 60°C
	Length 100.8mm
	Width 45 mm
	Height 95mm
	Standards/Approvals CSA,UL,EAC,RCM,CE,UKCAVDE

Datasheet - 3RF3405-1BB04

COO (Country of Origin):: DE

Siemens 3RF3 Series Solid State Contactor, 24V Coil Voltage, 48 to 480V AC Contact Voltage Rating - 3RF3405-1BB04

This solid state contactor is essential for efficient electrical management in industrial applications. It offers rapid switching capabilities for three-phase AC circuits, enhancing operational efficiency while minimising mechanical wear compared to conventional contactors. Its durable design ensures longevity in harsh conditions, making it crucial for automation and electrical systems.

Features & Benefits

• Operates at a control voltage of 24 V DC for reliable functionality

• Rated for load voltages from 48 V to 480 V AC to accommodate various applications

• Designed with a contact current rating of 5.2 A for dependable operation

• Compact DIN rail mount configuration optimises space during installation

• Functions with low power loss, promoting energy efficiency

• Built to endure extreme temperatures from -25 to +60°C

Applications

• Used in industrial automation systems

• Suitable for controlling three-phase motors in manufacturing processes

• Utilised in heating and lighting applications within commercial buildings

• Compatible for integration within control panels for machinery

What is the lifespan of the contactor under heavy usage?

The anticipated lifespan under demanding conditions is around 76 years.

How does the contactor perform in varying environmental conditions?

It functions effectively within ambient temperatures of -25 to +60°C.

Can this contactor be mounted vertically?

Yes, it is designed for vertical mounting on a DIN rail.

What occurs if the control voltage drops below the specified range?

The contactor may not perform accurately or may fail to switch.

Is it compatible with standard electrical terminals?

Yes, it features screw-type terminals suitable for conventional connections.