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Siemens Immersion sensor: Surface Mount, Std Housing, Analog, 0°F to 250°F, 375 A - Immersion Temperature Sensors
SiemensImmersion Temperature Sensors

Siemens Immersion sensor: Surface Mount, Std Housing, Analog, 0°F to 250°F, 375 A

The Siemens 544-577-25 is an immersion temperature sensor with a standard metal housing for surface-mount installation. It provides an analog 1k ohm Platinum 375 A temperature signal with ±0.54°F accuracy over a 0°F…

SKU 3G-OTH-68678

Also listed as: 54457725 · 544 577 25

Brand
Siemens
Item
Immersion sensor: Surface Mount, Std Housing, Analog, 0°F to 250°F, 375 A
Category
Immersion Temperature Sensors
Available to Order
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Local availability & support — the Philippines

Delivery
5–8 business days door-to-door; Bureau of Customs clearance typically 2–4 business days.
Payment
Invoicing in PHP or USD. Bank transfer and corporate PO accepted.
Ships to
Manila, Quezon City, Cebu, Davao, Batangas

Technical Specifications

Siemens
Manufacturer Part Number
544-577-25
Type
Std Housing, Analog, 0°F to 250°F, 375 A, Stainless Steel, Metal
Display
Analog Display
Housing
Metal
Housing Type
Standard Housing
Product Type
Immersion Temperature Sensor
Mounting Location
Surface Mount
Temperature Signal
1k ohm Platinum 375 A
Temperature Accuracy
±0.54°F
Temperature Signal Output
375 A
Electrical Connection Type
Hardwired
Compatible Building Automation Protocols
Modbus
For Use With Building Automation Systems
Building Automation System Compatible

Technical Documents

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

Product Description

The Siemens 544-577-25 is an immersion temperature sensor with a standard metal housing for surface-mount installation. It provides an analog 1k ohm Platinum 375 A temperature signal with ±0.54°F accuracy over a 0°F to 250°F range, features a hardwired electrical connection, and is compatible with Modbus building automation protocols.

Supplied to the Philippines — compatible with 60 Hz installations. DHL Express delivery to Manila, Quezon City, Cebu, customs and duties handled door-to-door.

Frequently Asked Questions

What is the Siemens 544-577-25 immersion sensor used for?

The Siemens 544-577-25 immersion temperature sensor is used in building automation systems to measure liquid or gas temperatures in pipes or tanks. It provides a precise 1k ohm Platinum 375 A analog signal for Modbus-compatible controllers, enabling accurate HVAC monitoring and control in commercial facilities.

What are the specifications of the Siemens 544-577-25 immersion sensor?

The Siemens 544-577-25 immersion sensor features a 1k ohm Platinum 375 A analog output with ±0.54°F accuracy over a 0°F to 250°F range. It has a standard metal housing, surface-mount installation, hardwired connection, and is compatible with Modbus building automation protocols. The stainless steel sensing element ensures durability.

Where to buy the Siemens 544-577-25 immersion sensor worldwide?

You can source the Siemens 544-577-25 immersion sensor worldwide through 3G Electric, a global industrial equipment distributor since 1990. We handle full logistics, customs clearance, and delivery to your location. Contact us for availability and lead time; we supply genuine Siemens components for building automation systems.

How to install the Siemens 544-577-25 immersion sensor?

Install the Siemens 544-577-25 immersion sensor by mounting it on a pipe or tank surface using the provided hardware. Ensure the stainless steel probe is fully immersed in the medium. Hardwire the connection to your Modbus controller following local electrical codes. Calibrate the sensor per the system's setup for accurate 0°F to 250°F readings.

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 immersion 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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