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Siemens SIRIUS 3RH2 Contactor Relay, 24 V dc Coil, 10 A, 4NO + 4NC, 690 V ac

RS Stock No.:: 136-3673
Mfr. Part No.:: 3RH2244-2BB40
Brand:: Siemens

Siemens SIRIUS 3RH2 Contactor Relay, 24 V dc Coil, 10 A, 4NO + 4NC, 690 V ac

Subtotal (1 unit)*

£52.30

(exc. VAT)

£62.76

(inc. VAT)

FREE delivery for orders over £50.00

In Stock

1 unit(s) ready to ship
Plus 4 unit(s) ready to ship from another location
Plus 9 unit(s) shipping from 11 September 2025

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Units	Per unit
1 +	£52.30

*price indicative

RS Stock No.:: 136-3673
Mfr. Part No.:: 3RH2244-2BB40
Brand:: Siemens

Siemens 3RH2 Series Contactor Relay, 10A Current Rating, 24V DC Coil Voltage - 3RH2244-2BB40

This contactor relay is an essential component for industrial automation. With a coil voltage of 24V DC and a robust contact current rating of 10A, this relay is built to handle demanding environments. The convenient DIN rail mount design and compact dimensions of 70mm in height, 45mm in width, and 121mm in depth make it suitable for tight spaces.

Features & Benefits

• 4NO + 4NC configuration enhances operational versatility
• Spring-loaded terminals ensure secure and reliable connections
• High AC contact voltage rating of 690V accommodates diverse requirements
• Mechanical service life of up to 10 million cycles guarantees long-term reliability
• Auxiliary contact configuration provides additional functionality for control circuits

Applications

• Used for controlling motors in industrial machinery
• Effective in lighting controls for automated systems
• Suitable for various electrical control panels and circuits
• Ideal for use in systems requiring reliable switching operations

What are the operational limits for temperature and humidity?

It operates efficiently within a temperature range of -25°C to +60°C and can withstand relative humidity levels of up to 95% at 55°C, making it suitable for diverse environments.

How is the contactor relay mounted and what are the requirements for spacing?

The relay can be installed on a vertical mounting surface and requires a spacing of 10mm with side-by-side mounting to ensure proper airflow and functionality.

What is the maximum switching frequency for the contactor?

The contactor can manage a maximum no-load switching frequency of up to 10,000 operations per hour for both AC and DC applications.

What type of terminals does the relay use?

It features spring-loaded terminals designed for easy and secure electrical connections, accommodating various conductor cross-sections for flexibility in installation.

How does the product manage electrical safety?

The relay is designed with a front protection class of IP20 and has positively driven operation, ensuring safety and reliability during use.

Find similar products by selecting one or more attributes.

Select all	Attribute	Value
	Brand	Siemens
	Coil Voltage	24 V dc
	Contact Voltage Rating	690 V ac
	Contact Current Rating	10 A
	Series	3RH2
	Range	SIRIUS
	Normal State Configuration	4NO + 4NC
	Number Of Auxiliary Contacts	4
	Auxiliary Contact Configuration	4NO + 4NC
	Terminal Type	Spring Load
	Length	70mm
	Width	45mm
	Depth	121mm
	Mounting Style	DIN Rail Mount
	Minimum Operating Temperature	-25°C
	Load Current	10A
	Load Voltage	690V ac
	Control Voltage	24 Vdc
	Maximum Operating Temperature	+60°C

	Select all
	Brand Siemens
	Coil Voltage 24 V dc
	Contact Voltage Rating 690 V ac
	Contact Current Rating 10 A
	Series 3RH2
	Range SIRIUS
	Normal State Configuration 4NO + 4NC
	Number Of Auxiliary Contacts 4
	Auxiliary Contact Configuration 4NO + 4NC
	Terminal Type Spring Load
	Length 70mm
	Width 45mm
	Depth 121mm
	Mounting Style DIN Rail Mount
	Minimum Operating Temperature -25°C
	Load Current 10A
	Load Voltage 690V ac
	Control Voltage 24 Vdc
	Maximum Operating Temperature +60°C

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