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Siemens Auxiliary Switch: 2NC, Front Mount - Siemens Auxiliary Contacts
SiemensSiemens Auxiliary Contacts

Siemens Auxiliary Switch: 2NC, Front Mount

The SIEMENS Auxiliary Switch (MPN 3RH29112NF02) is a front-mounted auxiliary contact block designed for use with SIRIUS 3RH2 contactor relays. It features a 2NC contact configuration and is compatible with Frame Size…

SKU 3G-OTH-38306

Brand
Siemens
Item
Auxiliary Switch: 2NC, Front Mount
Category
Siemens Auxiliary Contacts
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Technical Specifications

Siemens
Manufacturer Part Number
3RH29112NF02
Frame Size
S0
Compatible with Series
SIRIUS 3RH2 Contactor Relays

Technical Documents

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Siemens Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The SIEMENS Auxiliary Switch (MPN 3RH29112NF02) is a front-mounted auxiliary contact block designed for use with SIRIUS 3RH2 contactor relays. It features a 2NC contact configuration and is compatible with Frame Size S0. This component provides switching functionality for industrial control applications.

Frequently Asked Questions

What is the SIEMENS 3RH29112NF02 auxiliary switch used for?

The SIEMENS 3RH29112NF02 is a front-mounted auxiliary contact block used with SIRIUS 3RH2 contactor relays. It provides a 2NC switching function for industrial control circuits, enabling status feedback or interlocking in motor control and automation systems.

What are the specifications of the SIEMENS 3RH29112NF02 auxiliary switch?

The SIEMENS 3RH29112NF02 auxiliary switch has a 2NC contact configuration, Frame Size S0, and is designed for front mounting. It is compatible with SIRIUS 3RH2 contactor relays. The manufacturer part number is 3RH29112NF02.

Where to buy the SIEMENS 3RH29112NF02 auxiliary switch worldwide?

3G Electric supplies the SIEMENS 3RH29112NF02 auxiliary switch worldwide. As a global industrial solutions provider, we handle full logistics and customs clearance to deliver this genuine Siemens component to your facility, regardless of location.

How to install the SIEMENS 3RH29112NF02 auxiliary switch?

Install the SIEMENS 3RH29112NF02 auxiliary switch by mounting it to the front of a compatible SIRIUS 3RH2 contactor relay. Ensure the contact block snaps securely into place and wiring follows the 2NC terminal markings. Always de-energize the system before installation.

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 siemens auxiliary contacts. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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