RS Better World

Siemens 3RT2 Contactor, 24V dc Coil, 3-Pole, 12 A, 55 kW 24V dc, 1 NC, 400V ac

RS Stock No.:: 203-2537
Mfr. Part No.:: 3RT2017-1BB42-1AA0
Manufacturer:: Siemens

Siemens 3RT2 Contactor, 24V dc Coil, 3-Pole, 12 A, 55 kW 24V dc, 1 NC, 400V ac

Subtotal (1 unit)*

SGD143.20

(exc. GST)

SGD156.09

(inc. GST)

FREE delivery for orders over $75.00, or create a business account to enjoy free delivery from just $28

Stocked by manufacturer

Ready to ship from 16 September 2026

Need more? Click ‘Check delivery dates’ to find extra stock and lead times.

Units	Per unit
1 +	SGD143.20

*price indicative

Our Better World range features products that make it easy for you to make a greener product choice you can trust.

Learn more about RS Better World products

RS Stock No.:: 203-2537
Mfr. Part No.:: 3RT2017-1BB42-1AA0
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	3
	Contact Voltage	400V ac
	Contact Current	12A
	Series	3RT2
	Power Rating	55kW
	Function	Motor Control, Reversing
	Mount Type	Snap-On
	Normal State Configuration	1 NC
	Auxiliary Contact Configuration	1 NC
	Number of Auxiliary Contacts	1
	Terminal Type	Screw Clamp
	Contactor Application	Motor Control
	Operational Current Ie	6.7A
	Control Circuit Voltage Uc	24V dc
	Minimum Operating Temperature	-25°C
	Maximum Operating Temperature	60°C
	Length	58mm
	Depth	73mm
	Width	45mm
	Standards/Approvals	CCC, CSA, EAC, UL
	Better World Product	Yes
	Better World Claim	Low Carbon Manufacture
	Pole and Throw Configuration	3P

	Select all
	Brand Siemens
	Product Type Contactor
	Coil Voltage 24V dc
	Number of Poles 3
	Contact Voltage 400V ac
	Contact Current 12A
	Series 3RT2
	Power Rating 55kW
	Function Motor Control, Reversing
	Mount Type Snap-On
	Normal State Configuration 1 NC
	Auxiliary Contact Configuration 1 NC
	Number of Auxiliary Contacts 1
	Terminal Type Screw Clamp
	Contactor Application Motor Control
	Operational Current Ie 6.7A
	Control Circuit Voltage Uc 24V dc
	Minimum Operating Temperature -25°C
	Maximum Operating Temperature 60°C
	Length 58mm
	Depth 73mm
	Width 45mm
	Standards/Approvals CCC, CSA, EAC, UL
	Better World Product Yes
	Better World Claim Low Carbon Manufacture
	Pole and Throw Configuration 3P

COO (Country of Origin):: DE

Siemens size S00, 3RT2 Series Contactor, 24V DC Coil Voltage, 12A Current Rating - 3RT2017-1BB42-1AA0

This contactor is a compact and robust solution designed for AC applications. With a size S00 and 3-pole configuration, it operates effectively at a control voltage of 24V DC. The contactor provides a high-performance alternative for controlling electrical circuits, rated for a maximum load voltage of 400V AC.

Features & Benefits

• Designed for reversing applications to enhance control flexibility

• Equipped with one normally closed auxiliary contact for additional functionality

• Terminals are screw types for secure connections

• Suitable for DIN Rail mounting for streamlined installation

Applications

• Operative in automation systems requiring reliable switching

• Ideal for motor control in various industries

• Utilised in machinery for reversing operations and control functions

• Effective in environments with ambient temperatures ranging from -25°C to +60°C

What is the maximum current rating for the main circuit?

The main current circuit can handle operational currents of up to 12A at AC-3 for voltage ratings up to 400V.

How does the auxiliary contact enhance functionality?

The one normally closed auxiliary contact allows for additional control options, enabling monitoring or interlocking circuitry for enhanced safety.

What are the ambient conditions suitable for this contactor?

The contactor can operate effectively in temperatures ranging from -25°C to +60°C, making it suitable for a variety of environments.

What installation requirements should be considered?

This contactor is designed for screw and snap-on mounting onto a 35mm DIN rail, facilitating easy and secure installations.

How does the product ensure safety and reliability during operation?

The contactor's design includes features like a rated insulation voltage of 690V and an IP20 protection class, ensuring safe operation even in demanding conditions.