RS Better World

Siemens 3RT2 Contactor, 24V dc Coil, 4-Pole, 22 A, 55 kW 24V dc, 4 NO, 400V ac

RS Stock No.:: 203-2555
Mfr. Part No.:: 3RT2317-2BB40
Manufacturer:: Siemens

Siemens 3RT2 Contactor, 24V dc Coil, 4-Pole, 22 A, 55 kW 24V dc, 4 NO, 400V ac

Subtotal (1 unit)*

PHP8,733.13

(exc. VAT)

PHP9,781.11

(inc. VAT)

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Ready to ship from September 23, 2026

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Units	Per Unit
1 +	PHP8,733.13

*price indicative

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RS Stock No.:: 203-2555
Mfr. Part No.:: 3RT2317-2BB40
Manufacturer:: Siemens

Specifications

Technical data sheets

Legislation and Compliance

Product Details

Find similar products by selecting one or more attributes.

Select all	Attribute	Value
	Brand	Siemens
	Product Type	Contactor
	Coil Voltage	24V dc
	Number of Poles	4
	Contact Voltage	400V ac
	Contact Current	22A
	Series	3RT2
	Power Rating	55kW
	Mount Type	Snap-On
	Function	Reversing
	Normal State Configuration	4 NO
	Auxiliary Contact Configuration	2 NO/2 NC
	Number of Auxiliary Contacts	4
	Terminal Type	Spring Loaded
	Operational Current Ie	12A
	Minimum Operating Temperature	-25°C
	Contactor Application	Safety
	Control Circuit Voltage Uc	24V dc
	Maximum Operating Temperature	60°C
	Standards/Approvals	CCC, CSA, EAC, UL
	Length	70mm
	Width	45mm
	Depth	73mm
	Better World Claim	Low Carbon Manufacture
	Better World Product	Yes
	Pole and Throw Configuration	4

	Select all
	Brand Siemens
	Product Type Contactor
	Coil Voltage 24V dc
	Number of Poles 4
	Contact Voltage 400V ac
	Contact Current 22A
	Series 3RT2
	Power Rating 55kW
	Mount Type Snap-On
	Function Reversing
	Normal State Configuration 4 NO
	Auxiliary Contact Configuration 2 NO/2 NC
	Number of Auxiliary Contacts 4
	Terminal Type Spring Loaded
	Operational Current Ie 12A
	Minimum Operating Temperature -25°C
	Contactor Application Safety
	Control Circuit Voltage Uc 24V dc
	Maximum Operating Temperature 60°C
	Standards/Approvals CCC, CSA, EAC, UL
	Length 70mm
	Width 45mm
	Depth 73mm
	Better World Claim Low Carbon Manufacture
	Better World Product Yes
	Pole and Throw Configuration 4

COO (Country of Origin):: DE

Siemens size S00, 3RT23 Series Contactor, 22A Current Rating, 400V AC Voltage Rating - 3RT2317-2BB40

This contactor is designed for automation applications. Featuring a compact design of 70mm x 45mm x 73mm, it operates at a control voltage of 24V DC and supports 4 poles for efficient electrical control. The device is tailored for both performance and durability, supporting a maximum contact current of 22A with a voltage rating of 400V AC.

Features & Benefits

• Designed for reversing operations, enhancing versatility in applications

• Spring-loaded terminals ensure secure connections and ease of installation

• Includes four auxiliary contacts for expanded functionality

• High mechanical endurance rated at up to 30 million operating cycles

Applications

• Utilised in motor control setups requiring reversing functionality

• Suitable for use in industrial automation systems

• Effective in HVAC control circuits for efficient energy management

• Integrated within process control for reliable performance

What is the maximum operating temperature for safe use?

The device can function effectively in ambient temperatures ranging from -25°C to +60°C, making it suitable for diverse environments.

Can it handle different types of loads?

Yes, it is rated for AC-1 loads up to 22A at 400V, making it suitable for various electrical applications, including resistive loads.

What is the importance of having both NO and NC contacts?

The configuration with both normally open (4NO) and normally closed (2NC) auxiliary contacts allows for greater control and integration in electrical systems, supporting multiple circuit configurations.

What installation requirements should be considered?

The contactor is designed for DIN rail mounting and can be positioned optimally on vertical surfaces, allowing for efficient space utilisation and accessibility during operation.