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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 3NO contacts, rated at 12 A with a 24V DC coil (MPN 3RT20242BB40). It features spring-loaded wire termination and does not include…

SKU 3G-OTH-46615

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
3RT20242BB40
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 3NO contacts, rated at 12 A with a 24V DC coil (MPN 3RT20242BB40). It features spring-loaded wire termination and does not include integrated surge suppression.

Frequently Asked Questions

What is the SIEMENS 3RT20242BB40 contactor used for?

The SIEMENS 3RT20242BB40 is a non-reversing IEC power contactor used to switch electrical loads in industrial motor control, lighting, and heating applications. It is suitable for automation systems requiring reliable 24V DC coil operation and spring-loaded wiring for secure connections.

What are the specifications of the SIEMENS 3RT20242BB40 contactor?

This SIEMENS contactor has 3 poles with 3 normally open (3NO) contacts, rated at 12 A with a 24V DC coil. It features spring-loaded wire termination and no integrated surge suppression. The manufacturer part number is 3RT20242BB40.

Where to buy the SIEMENS 3RT20242BB40 contactor worldwide?

3G Electric supplies the SIEMENS 3RT20242BB40 contactor to customers worldwide. We handle full logistics, customs clearance, and delivery to your location. Contact us for pricing and lead time on this IEC power contactor.

How to install the SIEMENS 3RT20242BB40 contactor?

Mount the SIEMENS contactor on a DIN rail or panel using the provided clips. Connect wires to the spring-loaded terminals by inserting a screwdriver to open the clamp, then insert the stripped wire. Ensure the 24V DC coil voltage matches your control circuit before energizing.

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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