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Siemens 3SU1050-1HA20-0AA0 22mm Red E-Stop Pushbutton, Pull-to-Unlatch

Siemens 22mm round metal red E-Stop pushbutton, pull-to-unlatch.

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ManufacturerSiemens

Part number3SU1050-1HA20-0AA0

Actuator type EMERGENCY STOP mushroom pushbutton

Size 40 mm

Diameter 22 mm

Color Red

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22mm mounting diameter EMERGENCY STOP function Metal construction Shiny red finish 40mm actuator size Pull-to-unlatch mechanism Compliant with EN ISO 13850

Product description

The Siemens 3SU1050-1HA20-0AA0 is a 22mm round, metal mushroom pushbutton with a shiny red finish and a 40mm actuator size, specifically designed for EMERGENCY STOP functions. It features positive latching and is operated via a pull-to-unlatch mechanism, adhering to EN ISO 13850 safety standards.

This E-stop button is essential for immediate safety shutdowns in industrial environments, including manufacturing lines, assembly stations, and heavy machinery operations. The pull-to-unlatch feature provides a distinct method for resetting the safety circuit, often preferred in specific application designs.

Stanlo Automation, a veteran-owned supplier of surplus industrial automation parts, offers the Siemens 3SU1050-1HA20-0AA0. We are committed to providing reliable safety components at competitive prices to help you maintain operational safety and efficiency.

Technical specifications

Actuator type	EMERGENCY STOP mushroom pushbutton
Size	40 mm
Diameter	22 mm
Color	Red
Latching type	Positive latching
Release mechanism	Pull-to-unlatch
Standards	EN ISO 13850, IEC 60947-5-1

Common applications

Industrial machinery

Control panels

Safety circuits

Manufacturing automation

Assembly lines

Emergency shutdown systems

Compatible systems

Siemens 3SU1 enclosures, contact blocks, and accessories

Also known as

Siemens 3SU1 pull E-stop 3SU1050 pull to unlatch button Red mushroom E-stop 40mm

Replaces / compatible with

This part is a standard safety component and can be used to replace existing Siemens 3SU1 E-stop pushbuttons with a pull-to-unlatch mechanism or for new safety control system designs.

Technical note

Expert tip

The 40mm size and pull-to-unlatch operation are important considerations for operator ergonomics and safety protocol compliance.

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Frequently asked questions

What is the reset method for the Siemens 3SU1050-1HA20-0AA0 E-stop button?

The Siemens 3SU1050-1HA20-0AA0 emergency stop pushbutton is reset by pulling the red mushroom actuator outward. This pull-to-unlatch mechanism is a key feature for safety system resets.