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SiemensLab & Fume Hood Electric Actuators

Siemens Electric Actuator: Manual Return, 2.3 sec Cycle Time, 179 in-lb Torque

The SIEMENS Electric Actuator (MPN 546-00437B) is a 24V AC electric valve actuator with a manual return action and floating point control signal. It features a 2.3-second cycle time, 179 in-lb torque, and a 90°…

SKU 3G-OTH-364803

Also listed as: 54600437B · 546 00437B

Brand
Siemens
Item
Electric Actuator: Manual Return, 2.3 sec Cycle Time, 179 in-lb Torque
Category
Lab & Fume Hood Electric Actuators
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Technical Specifications

Siemens
Manufacturer Part Number
546-00437B
Type
179 in-lb Torque
Voltage
24V AC
Cycle Time
2.3 sec
Product Type
Electric Valve Actuator
Return Action
Manual Return
Stroke Degree
90°
Control Signal
Floating Point

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

Product Description

The SIEMENS Electric Actuator (MPN 546-00437B) is a 24V AC electric valve actuator with a manual return action and floating point control signal. It features a 2.3-second cycle time, 179 in-lb torque, and a 90° stroke degree. This product is categorized under lab and fume hood electric actuators.

Frequently Asked Questions

What is the SIEMENS 546-00437B electric actuator used for?

The SIEMENS 546-00437B electric valve actuator is used in lab and fume hood applications to control dampers or valves with a 90° stroke. It provides 179 in-lb torque and a 2.3-second cycle time, operating on 24V AC with a floating point control signal for precise positioning.

What are the specifications of the SIEMENS 546-00437B actuator?

The SIEMENS 546-00437B electric valve actuator operates at 24V AC with a floating point control signal. It delivers 179 in-lb torque, a 2.3-second cycle time, and a 90° stroke degree. The return action is manual, making it suitable for lab and fume hood environments.

Where to buy the SIEMENS 546-00437B actuator worldwide?

3G Electric supplies the SIEMENS 546-00437B electric actuator worldwide. As a global industrial solutions provider, we handle full logistics, customs clearance, and delivery to your facility. Contact us for pricing and lead time on this 24V AC actuator with manual return.

How to install the SIEMENS 546-00437B actuator?

Install the SIEMENS 546-00437B actuator by mounting it on the valve or damper shaft, ensuring the 90° stroke aligns with the application. Connect 24V AC power and the floating point control signal per the wiring diagram. Manually return the actuator to verify free movement before commissioning.

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 lab & fume hood electric actuators. 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
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Electric Actuator: HVAC Systems, Floating Point, Non-Spring Return, 44 lb-in, 24V AC, Hardwired (MPN GDE131.1U)
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Electric Actuator: HVAC Systems, Spring Return, 160 lb-in, 24V AC/DC, Hardwired, NEMA 2 / IP54 (MPN GCA156.1U)
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Electric Actuator: HVAC Systems, Non-Spring Return, 44 lb-in, 24V AC/DC, NEMA 2 / IP54 (MPN GDE161.1Q)
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Electric Actuator: HVAC Systems, Floating Point, Spring Return, 160 lb-in, 24V AC/DC, NEMA 2 / IP54 (MPN GCA166.1P)
Actuator: Dampers, Proportional, Non-Spring Return, 177 in-lb, 24V AC/DC, Hardwired, NEMA 2 / IP54 (MPN GEB161.1U)
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Actuator: Dampers, Proportional, Non-Spring Return, 177 in-lb, 24V AC/DC, Hardwired, NEMA 2 / IP54 (MPN GEB161.1U)
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Electric Actuator: Dampers, On/Off, Non-Spring Return, 44 lb-in, 24V AC/DC, NEMA 2 / IP54 (MPN GDE146.1P)

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