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Siemens Auxiliary Contact Block: 1NO/1NC, Side Mount, Side-Mounted - Siemens Auxiliary Contacts
SiemensSiemens Auxiliary Contacts

Siemens Auxiliary Contact Block: 1NO/1NC, Side Mount, Side-Mounted

The SIEMENS Auxiliary Contact Block, model 3RH29111DA11, is a side-mounted auxiliary contact block with a 1NO/1NC contact configuration. It is designed for Frame Size S00 and is compatible with the SIRIUS 3RT2 series…

SKU 3G-OTH-38232

Brand
Siemens
Item
Auxiliary Contact Block: 1NO/1NC, Side Mount, Side-Mounted
Category
Siemens Auxiliary Contacts
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Technical Specifications

Siemens
Manufacturer Part Number
3RH29111DA11
Frame Size
S00
Compatible with Series
SIRIUS 3RT2 Contactors
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Siemens Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The SIEMENS Auxiliary Contact Block, model 3RH29111DA11, is a side-mounted auxiliary contact block with a 1NO/1NC contact configuration. It is designed for Frame Size S00 and is compatible with the SIRIUS 3RT2 series of contactors from Siemens.

Frequently Asked Questions

What is the Siemens 3RH29111DA11 auxiliary contact block used for?

The Siemens 3RH29111DA11 auxiliary contact block is used to add additional signal or control contacts to SIRIUS 3RT2 contactors. It provides one normally open and one normally closed contact for monitoring or interlocking in motor control and industrial automation applications.

What are the specifications of the Siemens 3RH29111DA11 auxiliary contact block?

The Siemens 3RH29111DA11 is a side-mounted auxiliary contact block with a 1NO/1NC contact configuration. It is designed for Frame Size S00 and is compatible with the SIRIUS 3RT2 series of contactors from Siemens. The manufacturer part number is 3RH29111DA11.

Where to buy the Siemens 3RH29111DA11 auxiliary contact block worldwide?

You can source the Siemens 3RH29111DA11 auxiliary contact block worldwide through 3G Electric. As a global industrial equipment distributor, 3G Electric handles full logistics, customs clearance, and delivery to your location. Contact us for availability and lead time.

How to install the Siemens 3RH29111DA11 auxiliary contact block?

To install the Siemens 3RH29111DA11 auxiliary contact block, first ensure the SIRIUS 3RT2 contactor is de-energized. Then clip the block onto the side of the contactor until it locks securely. Wire the NO and NC terminals according to your control circuit diagram. Always follow Siemens installation 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 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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