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Siemens Magnetic Contactor: Non-Reversing, 4 Poles, 4NO Contacts, 12 A - Non-Reversing IEC Contactors
SiemensNon-Reversing IEC Contactors

Siemens Magnetic Contactor: Non-Reversing, 4 Poles, 4NO Contacts, 12 A

The SIEMENS IEC Magnetic Contactor: Non-Reversing (MPN 3RT23171BB40) is a non-reversing IEC contactor with 4 poles and 4 normally open (NO) contacts, rated at 12 A with a 24 V DC coil. It does not include integrated…

SKU 3G-OTH-46694

Brand
Siemens
Item
Magnetic Contactor: Non-Reversing, 4 Poles, 4NO Contacts, 12 A
Category
Non-Reversing IEC Contactors
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Technical Specifications

Siemens
Manufacturer Part Number
3RT23171BB40
Type
12 A
Poles
4
DC Coil
24V
Contacts
4NO
Integrated Surge Suppression
No
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Siemens Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The SIEMENS IEC Magnetic Contactor: Non-Reversing (MPN 3RT23171BB40) is a non-reversing IEC contactor with 4 poles and 4 normally open (NO) contacts, rated at 12 A with a 24 V DC coil. It does not include integrated surge suppression.

Frequently Asked Questions

What is the SIEMENS 3RT23171BB40 contactor used for?

The SIEMENS 3RT23171BB40 is a non-reversing IEC magnetic contactor used to switch electrical loads in industrial automation, motor control, and lighting systems. Its 4 normally open poles and 12 A rating suit applications requiring reliable on/off control of three-phase motors or resistive loads.

What are the specifications of the SIEMENS 3RT23171BB40 contactor?

This SIEMENS contactor (MPN 3RT23171BB40) is non-reversing with 4 poles and 4 normally open contacts. It is rated at 12 A with a 24 V DC coil and does not include integrated surge suppression. It is designed for IEC applications requiring compact, reliable switching.

Where to buy the SIEMENS 3RT23171BB40 contactor worldwide?

You can source the SIEMENS 3RT23171BB40 contactor through 3G Electric, a global industrial equipment distributor. We handle full logistics, customs clearance, and delivery to worldwide destinations. Contact us for availability and lead time on this Siemens part.

How to select the right SIEMENS contactor for a 24 V DC coil system?

To select the correct SIEMENS contactor, verify coil voltage matches your control circuit (24 V DC for this model), confirm pole count and contact configuration (4NO), and ensure the rated current (12 A) exceeds your load. Always consult the Siemens datasheet for application-specific derating factors.

Used in

Common applications for Siemens
District cooling plants — LME73 + RWF55 for condenser-water modulation
Inflight catering and food-processing steam boilers — LMG22 with SQN90 air-fuel cross-damper
Hospital steam-plant redundancy — LME41 with QRA2 UV flame detection for dual-fuel boilers
Semiconductor fab process heat — LME23 and SKP55 gas valves on hot-oil heater skids
Container-terminal reefer-deck heating — LMG22 retrofit onto legacy burner racks

Siemens Products

3G Electric supplies Siemens non-reversing iec contactors. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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