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Siemens 3SU1050-4BL51-0AA0 3-Position Latching Key Switch

Siemens 3SU1050-4BL51-0AA0 22mm 3-position latching key switch.

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ManufacturerSiemens

Part number3SU1050-4BL51-0AA0

Mounting 22 mm

Type Round

Material Metal

Finish Shiny

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22mm mounting RONIS lock system 3 switch positions Latching operation Metal construction 2x45° actuating angle Key removal in 'O' and 'I' positions

Product description

The Siemens 3SU1050-4BL51-0AA0 is a high-quality RONIS key-operated switch designed for 22mm standard mounting. This round, metal switch features a shiny finish and lock number SB30. It offers three switch positions (I-O-II) with latching functionality and an actuating angle of 2x45° (90° total). The key can be removed in the 'O', 'I', and 'II' positions.

This three-position switch is ideal for applications requiring multiple operational states, such as forward, stop, and reverse control, or different levels of system access. It is commonly used in complex machinery and industrial automation environments.

Stanlo Automation provides reliable surplus industrial parts, including the Siemens 3SU1050-4BL51-0AA0. As a veteran-owned company, we are dedicated to delivering value and ensuring your automation needs are met with quality components.

Technical specifications

Mounting	22 mm
Type	Round
Material	Metal
Finish	Shiny
Lock Number	SB30
Keys	2
Switch Positions	3 (I-O-II)
Operation	Latching
Actuating Angle	2x45°
Key Removal	O+I

Common applications

Multi-function controls

Industrial machinery

Automation systems

Control panels

Safety interlocks

Process control

Compatible systems

Siemens 3SU1 Series control units

Also known as

Siemens 3-position key switch 3SU1050-4BL51 Siemens RONIS 22mm switch

Replaces / compatible with

Compatible with Siemens 3SU1 series control units and accessories.

Technical note

Expert tip

The 3SU1050-4BL51-0AA0's 2x45° actuating angle and three-position capability are ideal for complex machine operations requiring distinct states like run, stop, and emergency stop.

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Frequently asked questions

What are the actuating angles and key removal options for the Siemens 3SU1050-4BL51-0AA0?

The Siemens 3SU1050-4BL51-0AA0 has an actuating angle of 2x45°, allowing for three distinct positions (I-O-II). The key can be removed from the switch when it is in the 'O' (Off) or 'I' (On) positions.