RS Better World

Siemens 3RT2 Contactor, 24V dc Coil, 4-Pole, 40 A, 7.5 kW 24V dc, 4 NO, 400V ac

RS Stock No.:: 861-3421
Mfr. Part No.:: 3RT2326-1BB40
Brand:: Siemens

Siemens 3RT2 Contactor, 24V dc Coil, 4-Pole, 40 A, 7.5 kW 24V dc, 4 NO, 400V ac

Subtotal (1 unit)*

Kr. 2 276,22

(exc. VAT)

Kr. 2 845,28

(inc. VAT)

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In Stock

Plus 7 unit(s) shipping from 14 September 2026
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Units	Per unit
1 +	Kr. 2 276,22

*price indicative

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RS Stock No.:: 861-3421
Mfr. Part No.:: 3RT2326-1BB40
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	Contactor
	Coil Voltage	24V dc
	Number of Poles	4
	Contact Voltage	400V ac
	Contact Current	40A
	Power Rating	7.5kW
	Series	3RT2
	Function	Motor Control
	Mount Type	Snap-On
	Normal State Configuration	4 NO
	Number of Auxiliary Contacts	2
	Auxiliary Contact Configuration	1 NO/1 NC
	Terminal Type	Screw Clamp
	Contactor Application	Motor Control
	Minimum Operating Temperature	-25°C
	Control Circuit Voltage Uc	24V dc
	Operational Current Ie	35A
	Maximum Operating Temperature	60°C
	Depth	107mm
	Length	85mm
	Standards/Approvals	CCC, CSA, EAC, RoHS, UKCA, UL, VDE
	Width	60mm
	Better World Claim	Low Carbon Manufacture
	Better World Product	Yes
	Pole and Throw Configuration	4PST

	Select all
	Brand Siemens
	Product Type Contactor
	Coil Voltage 24V dc
	Number of Poles 4
	Contact Voltage 400V ac
	Contact Current 40A
	Power Rating 7.5kW
	Series 3RT2
	Function Motor Control
	Mount Type Snap-On
	Normal State Configuration 4 NO
	Number of Auxiliary Contacts 2
	Auxiliary Contact Configuration 1 NO/1 NC
	Terminal Type Screw Clamp
	Contactor Application Motor Control
	Minimum Operating Temperature -25°C
	Control Circuit Voltage Uc 24V dc
	Operational Current Ie 35A
	Maximum Operating Temperature 60°C
	Depth 107mm
	Length 85mm
	Standards/Approvals CCC, CSA, EAC, RoHS, UKCA, UL, VDE
	Width 60mm
	Better World Claim Low Carbon Manufacture
	Better World Product Yes
	Pole and Throw Configuration 4PST

RoHS Status: Exempted

COO (Country of Origin):: DE

Siemens size S0, 3RT23 Series Contactor, 24V DC Coil Voltage, 40A Current Rating - 3RT2326-1BB40

This contactor is a reliable solution for controlling electrical circuits and providing overload protection. It operates at a coil voltage of 24V DC and features dimensions of 85mm in length, 60mm in width, and 107mm in depth. With a robust construction, it is suitable for diverse applications in the electrical and automation sectors.

Features & Benefits

• Designed with a 4NO configuration for versatile control

• Suitable for 400V AC circuits, enhancing compatibility

• Rated for 40A, allowing significant current handling

• Screw terminal connections ensure secure and reliable installations

Applications

• Utilised in automated machinery for sequence control

• Ideal for motor start/stop in industrial settings

• Suitable for circuit protection in control panels

• Can be implemented in HVAC systems for efficient operations

What is the temperature range for this device during operation?

This device can operate effectively within a temperature range of -25 °C to +60 °C, allowing for diverse environmental conditions.

How does the auxiliary contact configuration improve functionality?

The auxiliary contact configuration of 1NO + 1NC allows for control circuit integration, enabling both signalling and interlocking operations in complex systems.

What type of mounting does this product support?

It supports DIN rail mounting, which simplifies installation in standard control cabinets and optimises space.

What is the maximum altitude for installation?

This contactor can be installed at altitudes of up to 2,000 metres, making it versatile for various industrial environments.

How many mechanical operating cycles can this device typically handle?

It can sustain up to 10 million mechanical operating cycles, ensuring longevity and reliability in operational use.