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Siemens Line Volt Mechanical Tstat: 15° to 55°F, Steel, Fixed, 5°F - Freeze Protection Indoor Single-Stage Controls
SiemensFreeze Protection Indoor Single-Stage Controls

Siemens Line Volt Mechanical Tstat: 15° to 55°F, Steel, Fixed, 5°F

The SIEMENS Line Volt Mechanical Tstat is a freeze protection indoor single-stage control with a fixed 5°F differential and a temperature control range of 15° to 55°F. It features a DPST switch action (open/close on…

SKU 3G-OTH-67794

Also listed as: 1341504 · 134 1504

Brand
Siemens
Item
Line Volt Mechanical Tstat: 15° to 55°F, Steel, Fixed, 5°F
Category
Freeze Protection Indoor Single-Stage Controls
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Worldwide DHL shipping from Singapore; 7–14 business days door-to-door for most destinations.
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Technical Specifications

Siemens
Manufacturer Part Number
134-1504
Type
Steel, Fixed, 5°F
AC Volt
120 to 240V
Voltage
120 to 240V AC
Differential Type
Fixed
Enclosure Material
Steel
Switch Type/Action
DPST, Open/Close on Rise
Temperature Differential
5°F
Temperature Control Range
15° to 55°F
Capillary Length/Bulb Diameter
20 ft Capillary, 20 ft x 1/8 in Bulb

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

Product Description

The SIEMENS Line Volt Mechanical Tstat is a freeze protection indoor single-stage control with a fixed 5°F differential and a temperature control range of 15° to 55°F. It features a DPST switch action (open/close on rise), operates at 120 to 240V AC, and includes a 20 ft capillary with a 20 ft x 1/8 in bulb. The steel enclosure houses this fixed-differential thermostat, model 134-1504.

Frequently Asked Questions

What is the SIEMENS 134-1504 line volt mechanical thermostat used for?

The SIEMENS 134-1504 is a freeze protection indoor single-stage control. It prevents pipes and equipment from freezing by activating heating systems when temperatures drop between 15° and 55°F. Common applications include warehouses, boiler rooms, and mechanical spaces requiring reliable low-temperature monitoring.

What are the specifications of the SIEMENS 134-1504 thermostat?

The SIEMENS 134-1504 features a DPST switch action (open/close on rise), fixed 5°F differential, and temperature control range of 15° to 55°F. It operates at 120 to 240V AC, has a 20 ft capillary with 20 ft x 1/8 in bulb, and a steel enclosure. The fixed differential ensures consistent freeze protection without adjustment.

Where to buy the SIEMENS 134-1504 thermostat worldwide?

3G Electric supplies the SIEMENS 134-1504 line volt mechanical thermostat worldwide. As a global industrial distributor since 1990, we handle full logistics, customs clearance, and delivery to your site. Contact us for availability and lead time; we source and deliver this freeze protection control to any country.

How to install the SIEMENS 134-1504 freeze protection thermostat?

Mount the steel enclosure on a vibration-free surface near the protected area. Route the 20 ft capillary bulb to sense air temperature at the coldest point. Wire the DPST switch per local codes for 120 to 240V AC loads. Set the dial between 15° and 55°F; the fixed 5°F differential activates heating on temperature drop.

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 freeze protection indoor single-stage controls. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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