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Siemens 3SU1050-5BL21-0AA0 22mm Metal 3-Pos Keyswitch Key Removal I

Siemens 3SU1050-5BL21-0AA0 22mm metal 3-position keyswitch, key removal I.

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ManufacturerSiemens

Part number3SU1050-5BL21-0AA0

Mounting diameter 22 mm

Front bezel material Metal

Front bezel color Shiny

Lock number S-10-CG

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22mm metal construction 3 switch positions (I-O-II) Latching operation Key removable only in 'I' position 2x45° actuating angle Includes 2 keys

Product description

The Siemens 3SU1050-5BL21-0AA0 is a 22mm round metal keyswitch featuring a shiny finish and lock number S-10-CG. It offers three switch positions: 'I' (On), 'O' (Off), and 'II' (On), with latching functionality. The actuating angle is 2x45°, providing distinct positions at 10:30h, 12h, and 13:30h. A key feature is that the key can only be removed when the switch is in the 'I' position. It includes 2 keys.

This keyswitch is designed for control systems where security and specific operational sequences are critical, and the key must remain inserted during operation in the 'I' state. It's applicable in areas like secure equipment startup, specialized industrial processes, and access control systems requiring key presence for active states.

Stanlo Automation, a veteran-owned company specializing in surplus industrial parts, offers the Siemens 3SU1050-5BL21-0AA0. We provide reliable, tested components to keep your automation systems running, offering value and expertise to our customers.

Technical specifications

Mounting diameter	22 mm
Front bezel material	Metal
Front bezel color	Shiny
Lock number	S-10-CG
Number of switch positions	3
Switch type	Latching
Actuating angle	2x45°
Key removal position	I
Included keys	2

Common applications

Security systems

Industrial control

Machine safety interlocks

Access control

Specialized equipment operation

Control panels

Compatible systems

SIRIUS 3SU1 components Standard 22mm control panel cutouts

Also known as

Siemens Keyed Selector Switch SIRIUS 3SU1 Series 3-Position 22mm Metal Switch Key Lock

Replaces / compatible with

Part of the Siemens SIRIUS 3SU1 series. This variant offers specific key removal logic (in 'I' position) for enhanced operational security compared to other models.

Technical note

Expert tip

This keyswitch's 'key removal in I' feature is crucial for applications where the active state ('I') must be secured by the presence of the key.

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Frequently asked questions

What is the significance of key removal being in the 'I' position for the 3SU1050-5BL21-0AA0?

The Siemens 3SU1050-5BL21-0AA0 features key removal only in the 'I' (On) position. This design ensures the key must be present and engaged for the switch to be in the 'I' state, providing a safety interlock and preventing unauthorized deactivation.