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SiemensTemperature Sensors

Siemens Grainger Product (MPN 540-680FA)

The Siemens Grainger Product (MPN 540-680FA) is a surface-mount indoor temperature sensor designed for use with Siemens Terminal Equipment Controllers (TEC). It features a flush-mounted override button and a cable…

SKU 3G-OTH-70849

Brand

Siemens

Item

Grainger Product

Category

Temperature Sensors

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Technical Specifications

Siemens

Manufacturer Part Number

540-680FA 

Includes

Flush Mounted Override Button 

Application

Temperature 

Mounting Type

Surface Mount 

Indoor/Outdoor

Indoor 

Temperature Range

55° to 95°F 

Electrical Connection Type

Cable 

Compatible Brand and Series

Siemens Terminal Equipment Controllers (TEC) 

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Siemens Products

3G Electric (S) Pte. Ltd. — Singapore

Product Description

The Siemens Grainger Product (MPN 540-680FA) is a surface-mount indoor temperature sensor designed for use with Siemens Terminal Equipment Controllers (TEC). It features a flush-mounted override button and a cable electrical connection, with a temperature range of 55° to 95°F.

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

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Room Temperature Sensor, Beige, Indoor (MPN 540-660A). Key specifications — Application: Temperature; Compatible Brand and Series: Siemens Terminal Equipment Controllers (TEC); Electrical Connection Type: Cable; Indoor/Outdoor: Indoor; Mounting Type: Surface Mount; Temperature Range: 55° to 95°F; Brand: SIEMENS.

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