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Siemens 3SU1051-1EA20-0AA0 3-Position Red Latching Pushbutton

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ManufacturerSiemens

Part number3SU1051-1EA20-0AA0

Actuator Type Mushroom pushbutton

Color Red

Number of Positions 3

Action Latching

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12-month warranty

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Veteran-owned

CAGE: 9NK75

3 switch positions Latching mechanism Red 40mm mushroom head Pull-to-unlatch release 22mm mounting Metal housing

Product description

The Siemens 3SU1051-1EA20-0AA0 is a 22mm round, metal, red pushbutton with a 40mm mushroom head, featuring three switch positions. This latching mechanism engages after being pushed and is released by pulling the button outwards to the center position. It offers distinct operational states for precise control.

This 3-position latching pushbutton is ideal for applications requiring sequential control or distinct states, such as activating different machine modes, starting/stopping processes with interlocks, or complex operational sequences in manufacturing, automotive, and processing plants.

Stanlo Automation, a veteran-owned surplus parts distributor, offers the Siemens 3SU1051-1EA20-0AA0. We provide reliable access to specialized industrial components. Ensure your control systems are equipped with the right parts by sourcing from Stanlo.

Technical specifications

Actuator Type	Mushroom pushbutton
Color	Red
Number of Positions	3
Action	Latching
Release Mechanism	Pull-to-unlatch
Mounting Diameter	22 mm
Enclosure Material	Metal
Actuator Diameter	40 mm

Common applications

Multi-mode machine control

Process sequence control

Automation systems

Industrial HMI

Manufacturing operations

Safety interlocks

Compatible systems

Siemens 3SU1 command devices 22mm control panels

Also known as

Siemens 3SU1 3-position button 3SU1051-1EA20 Red latching mushroom 22mm 3-state switch

Replaces / compatible with

Replaces older 3-position selectors or provides enhanced functionality over simple momentary or latching buttons. Compatible with Siemens 3SU1 control units.

Technical note

Expert tip

This pushbutton requires a specific control unit that can interpret its three distinct states for proper integration into control logic.

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Frequently asked questions

How does the latching mechanism work on the Siemens 3SU1051-1EA20-0AA0 pushbutton?

The Siemens 3SU1051-1EA20-0AA0 features a latching mechanism that engages in its pressed positions. To reset, the button must be pulled outwards, returning it to the center position and disengaging the latch.