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Siemens Keyed Selector Switch: 2 Position, 22 mm Panel Mounting Size - Panel-Mounted Key Switches without Contacts
SiemensPanel-Mounted Key Switches without Contacts

Siemens Keyed Selector Switch: 2 Position, 22 mm Panel Mounting Size

The SIEMENS Keyed Selector Switch is a panel-mounted key switch without contacts, part of the Series 3SU. It features a 2-position, maintained/maintained switch action and a key removal position on the right. This 22…

SKU 3G-OTH-32156

Brand
Siemens
Item
Keyed Selector Switch: 2 Position, 22 mm Panel Mounting Size
Category
Panel-Mounted Key Switches without Contacts
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Technical Specifications

Siemens
Manufacturer Part Number
3SU1050-5BF21-0AA0
Switch Action
Maintained/Maintained
Key Removal Position
Right
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Siemens Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The SIEMENS Keyed Selector Switch is a panel-mounted key switch without contacts, part of the Series 3SU. It features a 2-position, maintained/maintained switch action and a key removal position on the right. This 22 mm panel mounting size unit is identified by manufacturer part number 3SU1050-5BF21-0AA0.

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 panel-mounted key switches without contacts. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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SIEMENS Keyed Selector Switch: 3 Position, 22 mm Panel Mounting Size, Series 3SU (MPN 3SU1050-5BP61-0AA0). Key specifications — Manufacturer Part Number: 3SU1050-5BP61-0AA0; Brand: SIEMENS; Switch Action: Momentary/Maintained/Maintained; Key Removal Position: Right.
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