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Siemens Magnetic Contactor: Non-Reversing, 4 Poles, 2NO/2NC Contacts, 12 A - Non-Reversing IEC Contactors
SiemensNon-Reversing IEC Contactors

Siemens Magnetic Contactor: Non-Reversing, 4 Poles, 2NO/2NC Contacts, 12 A

The SIEMENS IEC Magnetic Contactor is a non-reversing contactor with 4 poles and 2NO/2NC contacts, rated at 12 A with a 24V DC coil (MPN 3RT25171BB40). It does not include integrated surge suppression.

SKU 3G-OTH-49566

Brand
Siemens
Item
Magnetic Contactor: Non-Reversing, 4 Poles, 2NO/2NC Contacts, 12 A
Category
Non-Reversing IEC Contactors
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Technical Specifications

Siemens
Manufacturer Part Number
3RT25171BB40
Type
12 A
Poles
4
DC Coil
24V
Contacts
2NO/2NC
Integrated Surge Suppression
No
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Siemens Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The SIEMENS IEC Magnetic Contactor is a non-reversing contactor with 4 poles and 2NO/2NC contacts, rated at 12 A with a 24V DC coil (MPN 3RT25171BB40). It does not include integrated surge suppression.

Frequently Asked Questions

What is the SIEMENS 3RT25171BB40 magnetic contactor used for?

The SIEMENS 3RT25171BB40 is a non-reversing IEC magnetic contactor used for switching motors, lighting, and other inductive loads in industrial control panels. Its 4-pole configuration with 2NO/2NC contacts and 12 A rating suits applications requiring reliable on/off control in automation and machinery.

What are the specifications of the SIEMENS 3RT25171BB40 contactor?

The SIEMENS 3RT25171BB40 is a non-reversing contactor with 4 poles, 2NO/2NC contacts, rated at 12 A, and a 24V DC coil. It does not include integrated surge suppression. The manufacturer part number is 3RT25171BB40, and it is designed for IEC applications.

Where to buy the SIEMENS 3RT25171BB40 contactor worldwide?

3G Electric supplies the SIEMENS 3RT25171BB40 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 4-pole, 12 A, 24V DC coil contactor.

How to select the right SIEMENS contactor for a 24V DC control circuit?

To select a SIEMENS contactor for a 24V DC control circuit, match the coil voltage (24V DC) and current rating (12 A) to your load. The 3RT25171BB40 offers 4 poles with 2NO/2NC contacts. Ensure the contactor's rated operational current exceeds your motor or load current, and verify auxiliary contact 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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