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Siemens SMFH20 Manual Motor Controller, 20 Trip Class - Electrical
SiemensElectrical

Siemens SMFH20 Manual Motor Controller, 20 Trip Class

Siemens Electrical.

SKU 3G-OTH-44348

Also listed as: SMFH 20 · SMFH-20

Brand
Siemens
Item
SMFH20 Manual Motor Controller, 20 Trip Class
Part Number
SMFH20
Category
Electrical
UNSPSC
39121029 — Isolation transformer
Available to Order
Also known as:SMFH20Siemens
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Local availability & support — Singapore

Local office
20 Woodlands Link #09-05, Singapore 738733
Phone
+65 8878 8355
Delivery
Same-day or next-business-day delivery within Singapore for in-stock items; 7–14 days for factory-order parts from Europe.
Payment
Invoicing in SGD. PayNow, bank transfer, and corporate PO accepted.
Ships to
Singapore

Technical Specifications

Siemens
Manufacturer Part Number
SMFH20

Technical Documents

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

Product Description

Siemens Electrical.

Frequently Asked Questions

What is the Siemens SMFH20 manual motor controller used for?

The Siemens SMFH20 is a manual motor controller used for switching and protecting motors in industrial applications. It provides overload and short-circuit protection, making it suitable for conveyors, pumps, and fans across manufacturing and process industries.

What are the specifications of the Siemens SMFH20?

The Siemens SMFH20 is a manual motor controller with a 20 trip class, designed for motor protection. Its manufacturer part number is SMFH20. For exact voltage, current ratings, and enclosure details, consult the Siemens datasheet or contact 3G Electric for technical support.

Where to buy the Siemens SMFH20 worldwide?

3G Electric supplies the Siemens SMFH20 manual motor controller to customers worldwide. We handle full logistics, customs clearance, and delivery to your site. Contact us for a quote and lead time; we source genuine Siemens parts through our global supply network.

How to install the Siemens SMFH20 manual motor controller?

Install the Siemens SMFH20 by mounting it on a DIN rail or panel, then wiring the motor and control circuit per the manufacturer's diagram. Ensure the trip class matches your motor's starting characteristics. Always disconnect power before installation and follow local electrical codes.

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
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Siemens Products

3G Electric supplies Siemens electrical. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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Siemens
Manual motor controller for starting, stopping, and protecting single-phase or three-phase motors. Provides overload and short-circuit protection for applications such as conveyors, pumps, and fans in industrial environments

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