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Siemens Auxiliary Switch: 2NC - Siemens Auxiliary Contacts
SiemensSiemens Auxiliary Contacts

Siemens Auxiliary Switch: 2NC

Siemens Siemens Auxiliary Contacts.

SKU 3G-OTH-38605

Brand
Siemens
Item
Auxiliary Switch: 2NC
Category
Siemens Auxiliary Contacts
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Worldwide DHL shipping from Singapore; 7–14 business days door-to-door for most destinations.
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Invoicing in USD. Bank transfer (SWIFT) and corporate PO accepted.

Technical Specifications

Siemens
Manufacturer Part Number
49ACR8

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

Product Description

Siemens Siemens Auxiliary Contacts.

Frequently Asked Questions

What is the Siemens 49ACR8 auxiliary switch used for?

The Siemens 49ACR8 auxiliary switch is used in industrial control panels and motor starters to provide status feedback or interlocking signals. It is commonly applied in manufacturing, HVAC, and power distribution systems where reliable switching of auxiliary circuits is required.

What are the specifications of the Siemens 49ACR8 auxiliary switch?

The Siemens 49ACR8 auxiliary switch features 2 normally closed (2NC) contacts and a maximum AC current rating of 60 A. It is a Siemens-branded auxiliary contact block designed for use with compatible contactors and starters. The manufacturer part number is 49ACR8.

Where to buy the Siemens 49ACR8 auxiliary switch worldwide?

You can source the Siemens 49ACR8 auxiliary switch 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 auxiliary contact block.

How to install the Siemens 49ACR8 auxiliary switch?

To install the Siemens 49ACR8 auxiliary switch, first ensure the main power is off. Mount the switch onto the compatible Siemens contactor or starter using the provided clips or screws. Wire the 2NC contacts according to your control circuit diagram, then test for proper operation 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 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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Compatible alternatives & equivalents

Cross-referenced by specification & description
SIEMENS Auxiliary Switch: 2NO/2NC, 60 A Max Current (AC) (MPN 49D36098003)
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SIEMENS Auxiliary Switch: 2NO/2NC, 60 A Max Current (AC) (MPN 49D36098003)
SIEMENS Auxiliary Switch: 1NO/1NC, 60 A Max Current (AC) (MPN 49D36098001)
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SIEMENS Auxiliary Switch: 1NO/1NC, 60 A Max Current (AC) (MPN 49D36098001)
SIEMENS Auxiliary Switch: 2NO/2NC, Front Mount, Front-Mounted, 3RH29112XA220MA0
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SIEMENS Auxiliary Switch: 2NO/2NC, Front Mount, Front-Mounted, 3RH29112XA220MA0
SIEMENS Auxiliary Switch: 1NC, Front Mount, Front-Mounted (MPN 3RH1921-1CD01)
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SIEMENS Auxiliary Switch: 1NC, Front Mount, Front-Mounted (MPN 3RH1921-1CD01)
SIEMENS Auxiliary Contact: 2NO/2NC, 10 A Max Current (AC), Front Mount, Front-Mounted (MPN 3RH29111HA22)
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SIEMENS Auxiliary Contact: 2NO/2NC, 10 A Max Current (AC), Front Mount, Front-Mounted (MPN 3RH29111HA22)
SIEMENS Auxiliary Contact: 1NC, 10 A Max Current (AC), Side Mount, Side-Mounted (MPN 49AB01)
Siemens
SIEMENS Auxiliary Contact: 1NC, 10 A Max Current (AC), Side Mount, Side-Mounted (MPN 49AB01)

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SIEMENS Auxiliary Contact Block: 1NO/1NC, Front Mount, Front-Mounted, 3RH29111LA11
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SIEMENS Auxiliary Contact: 2NC, 10 A Max Current (AC), Side Mount, Side-Mounted (MPN 3RH29211DA02)
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SIEMENS Auxiliary Contact: 3NO/1NC, 10 A Max Current (AC), Front Mount, Front-Mounted (MPN 3RH29111HA31)
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SIEMENS Auxiliary Contact: 2NO/2NC, 10 A Max Current (AC), Side Mount, Side-Mounted (MPN 49AB22)
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SIEMENS Auxiliary Switch: 1NO/1NC, 90 A Max Current (AC) (MPN 49CE42SPDT)
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