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Siemens Power Contactor: Non-Reversing, 3 Poles, 3NO Contacts, 12 A - Non-Reversing IEC Contactors
SiemensNon-Reversing IEC Contactors

Siemens Power Contactor: Non-Reversing, 3 Poles, 3NO Contacts, 12 A

The SIEMENS IEC Power Contactor is a non-reversing contactor with 3 poles and 3 normally open (NO) contacts, rated at 12 A with a 24 V DC coil (MPN 3RT20172BB42). It features spring-loaded wire termination and does…

SKU 3G-OTH-51568

Brand
Siemens
Item
Power Contactor: Non-Reversing, 3 Poles, 3NO Contacts, 12 A
Category
Non-Reversing IEC Contactors
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Technical Specifications

Siemens
Manufacturer Part Number
3RT20172BB42
Type
12 A
Poles
3
DC Coil
24V
Contacts
3NO
Wire Termination Type
Spring Loaded
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 contactor with 3 poles and 3 normally open (NO) contacts, rated at 12 A with a 24 V DC coil (MPN 3RT20172BB42). It features spring-loaded wire termination and does not include integrated surge suppression.

Frequently Asked Questions

What is the SIEMENS 3RT20172BB42 contactor used for?

The SIEMENS 3RT20172BB42 is a non-reversing IEC power contactor used to switch electrical loads in industrial automation, motor control, and HVAC systems. It is rated for 12 A with a 24 V DC coil and 3 normally open contacts, making it suitable for controlling motors, lighting, and resistive loads.

What are the specifications of the SIEMENS 3RT20172BB42 contactor?

The SIEMENS 3RT20172BB42 is a 3-pole, non-reversing contactor with 3 normally open (3NO) contacts, rated at 12 A. It has a 24 V DC coil, spring-loaded wire termination, and no integrated surge suppression. The manufacturer part number is 3RT20172BB42.

Where to buy the SIEMENS 3RT20172BB42 contactor worldwide?

You can source the SIEMENS 3RT20172BB42 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 IEC power contactor.

How to install the SIEMENS 3RT20172BB42 contactor?

To install the SIEMENS 3RT20172BB42, ensure the 24 V DC coil voltage matches your control circuit. Use spring-loaded terminals for secure wire connections without tools. Mount on a DIN rail or panel, and verify that the 12 A rated current is not exceeded. Always follow local electrical codes and Siemens guidelines.

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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