We ship to the Philippines — door-to-door, customs and logistics handled by 3G Electric

Siemens Keyed Selector Switch: 3 Position, 22 mm Panel Mounting Size - Panel-Mounted Key Switches without Contacts

SiemensPanel-Mounted Key Switches without Contacts

Siemens Keyed Selector Switch: 3 Position, 22 mm Panel Mounting Size

The SIEMENS Keyed Selector Switch, Series 3SU, is a 3-position panel-mounted key switch without contacts, featuring a 22 mm mounting size. It offers a momentary/maintained/maintained switch action with key removal in…

SKU 3G-OTH-32588

Brand

Siemens

Item

Keyed Selector Switch: 3 Position, 22 mm Panel Mounting Size

Category

Panel-Mounted Key Switches without Contacts

Available to Order

Trade pricing by quote — replies within 24h

Qty

WhatsApp an engineer

No account needed — your quote request goes straight to our engineers. A free account lets you track quotes and re-order faster.

Create free account →Log in

Worldwide Shipping

Air & sea freight

Datasheet on Request

Technical specs

1-Day Quote

Replies within 24h

Technical Specifications

Siemens

Manufacturer Part Number

3SU1050-5BN51-0AA0 

Switch Action

Momentary/Maintained/Maintained 

Key Removal Position

Left 

View Full Spec Sheet

Technical Documents

No technical documents available for this product.

Request documentation →

Not sure this is the right part? Get a recommendation.

Need installation or engineering help?

Installation, commissioning, maintenance plans, system design, and bundled product + service quotes — one team handles the full scope.

Talk to an engineer

Ask a question

Siemens Products

3G Electric (S) Pte. Ltd. — Singapore

Product Description

The SIEMENS Keyed Selector Switch, Series 3SU, is a 3-position panel-mounted key switch without contacts, featuring a 22 mm mounting size. It offers a momentary/maintained/maintained switch action with key removal in the left position. This component is identified by manufacturer part number 3SU1050-5BN51-0AA0.

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.

Browse all Siemens products →Contact our engineers →

You might also need

Burners & Combustion →Pumps & Compressors →Spare Parts →All Products →

Similar products

Matched by specification & description

SIEMENS Keyed Selector Switch: 2 Position, 22 mm Panel Mounting Size, Series 3SU (MPN 3SU1050-5BF21-0AA0). Key specifications — Manufacturer Part Number: 3SU1050-5BF21-0AA0; Brand: SIEMENS; Switch Action: Maintained/Maintained; Key Removal Position: Right.

SIEMENS Keyed Selector Switch: 3 Position, 22 mm Panel Mounting Size, Series 3SU (MPN 3SU1050-5BL21-0AA0). Key specifications — Manufacturer Part Number: 3SU1050-5BL21-0AA0; Brand: SIEMENS; Switch Action: Maintained/Maintained/Maintained; Key Removal Position: Left.

SIEMENS Keyed Selector Switch: 2 Position, 22 mm Panel Mounting Size, Series 3SU (MPN 3SU1000-5BF11-0AA0). Key specifications — Manufacturer Part Number: 3SU1000-5BF11-0AA0; Brand: SIEMENS; Switch Action: Maintained/Maintained; Key Removal Position: Any Position.

SIEMENS Keyed Selector Switch: 3 Position, 22 mm Panel Mounting Size, Series 3SU (MPN 3SU1000-5BL21-0AA0). Key specifications — Manufacturer Part Number: 3SU1000-5BL21-0AA0; Brand: SIEMENS; Switch Action: Maintained/Maintained/Maintained; Key Removal Position: Left.

SIEMENS Keyed Selector Switch: 3 Position, 22 mm Panel Mounting Size, Series 3SU (MPN 3SU1050-5BL31-0AA0). Key specifications — Manufacturer Part Number: 3SU1050-5BL31-0AA0; Brand: SIEMENS; Switch Action: Maintained/Maintained/Maintained; Key Removal Position: Right.

SIEMENS Keyed Selector Switch: 3 Position, 22 mm Panel Mounting Size, Series 3SU (MPN 3SU1000-5BL31-0AA0). Key specifications — Manufacturer Part Number: 3SU1000-5BL31-0AA0; Brand: SIEMENS; Switch Action: Maintained/Maintained/Maintained; Key Removal Position: Right.

More from Siemens

View all Siemens parts →

SIEMENS Keyed Selector Switch: 2 Position, 22 mm Panel Mounting Size, Series 3SU (MPN 3SU1050-5BF01-0AA0). Key specifications — Manufacturer Part Number: 3SU1050-5BF01-0AA0; Brand: SIEMENS; Switch Action: Maintained/Maintained; Key Removal Position: Left.

SIEMENS Keyed Selector Switch: 2 Position, 22 mm Panel Mounting Size, Series 3SU (MPN 3SU1000-5BF01-0AA0). Key specifications — Manufacturer Part Number: 3SU1000-5BF01-0AA0; Brand: SIEMENS; Switch Action: Maintained/Maintained; Key Removal Position: Left.

SIEMENS Keyed Selector Switch: 2 Position, 30 mm Panel Mounting Size, Series Class 52 (MPN 52SC6AF). Key specifications — Manufacturer Part Number: 52SC6AF; Brand: SIEMENS; Switch Action: Maintained/Maintained; Key Removal Position: Left.

SIEMENS Keyed Selector Switch: 2 Position, 22 mm Panel Mounting Size, Series 3SU (MPN 3SU1000-5BC01-0AA0). Key specifications — Manufacturer Part Number: 3SU1000-5BC01-0AA0; Brand: SIEMENS; Switch Action: Momentary/Momentary; Key Removal Position: Left.

SIEMENS Keyed Selector Switch: 2 Position, 22 mm Panel Mounting Size, Series 3SU (MPN 3SU1050-5BF11-0AA0). Key specifications — Manufacturer Part Number: 3SU1050-5BF11-0AA0; Brand: SIEMENS; Switch Action: Maintained/Maintained; Key Removal Position: Any Position.

SIEMENS Keyed Selector Switch: 2 Position, 22 mm Panel Mounting Size, Series 3SU (MPN 3SU1050-5BC01-0AA0). Key specifications — Manufacturer Part Number: 3SU1050-5BC01-0AA0; Brand: SIEMENS; Switch Action: Momentary/Momentary; Key Removal Position: Left.

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.

SIEMENS Keyed Selector Switch: 3 Position, 30 mm Panel Mounting Size, Series Class 52 (MPN 52SC6BH). Key specifications — Manufacturer Part Number: 52SC6BH; Brand: SIEMENS; Switch Action: Maintained/Maintained/Maintained; Key Removal Position: Center.