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

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

The SIEMENS IEC Power Contactor is a non-reversing IEC contactor with 4 poles and 4 normally open (NO) contacts, rated at 12 A with a 12V DC coil (MPN 3RT23171BA40). This model does not include integrated surge…

SKU 3G-OTH-40690

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

Siemens
Manufacturer Part Number
3RT23171BA40
Type
12 A
Poles
4
DC Coil
12V
Contacts
4NO
Integrated Surge Suppression
No
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Siemens Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The SIEMENS IEC Power Contactor is a non-reversing IEC contactor with 4 poles and 4 normally open (NO) contacts, rated at 12 A with a 12V DC coil (MPN 3RT23171BA40). This model does not include integrated surge suppression.

Frequently Asked Questions

What is the SIEMENS 3RT23171BA40 IEC power contactor used for?

The SIEMENS 3RT23171BA40 is a non-reversing IEC power contactor used to switch electrical loads in industrial automation, motor control, and HVAC systems. Its 4-pole, 4NO configuration at 12 A with a 12V DC coil suits applications requiring reliable on/off control without reversing.

What are the specifications of the SIEMENS 3RT23171BA40 contactor?

The SIEMENS 3RT23171BA40 is a non-reversing IEC contactor with 4 poles, 4 normally open (NO) contacts, rated at 12 A, and a 12V DC coil. It does not include integrated surge suppression. The manufacturer part number is 3RT23171BA40.

Where to buy the SIEMENS 3RT23171BA40 contactor worldwide?

3G Electric supplies the SIEMENS 3RT23171BA40 contactor worldwide. As a global industrial solutions provider, we handle full logistics, customs clearance, and delivery to your location. Contact us for pricing and lead time on this genuine Siemens part.

How to select the right coil voltage for a SIEMENS contactor?

Select the coil voltage (e.g., 12V DC for the 3RT23171BA40) to match your control circuit. Verify the control system's voltage and polarity. For DC coils, ensure the power supply can deliver the required inrush current. Always consult the Siemens datasheet for coil ratings and surge suppression needs.

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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