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Siemens 3SU1051-1HB20-0AA0 Emergency Stop Pushbutton

Siemens 3SU1051-1HB20-0AA0 Emergency Stop Mushroom Pushbutton

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ManufacturerSiemens

Part number3SU1051-1HB20-0AA0

Actuator Type Emergency Stop mushroom pushbutton

Color Red

Illumination Yes

Contact Type Positive latching

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12-month warranty

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Veteran-owned

CAGE: 9NK75

Illuminable Emergency Stop button 40mm red mushroom head Positive latching Rotate-to-unlatch mechanism 22mm mounting Metal housing EN ISO 13850 compliant

Product description

The Siemens 3SU1051-1HB20-0AA0 is an illuminable, 22mm round, metal, EMERGENCY STOP mushroom pushbutton. It features a prominent 40mm shiny red actuator and complies with EN ISO 13850 for safety applications. This E-STOP button utilizes a positive latching mechanism and is released by twisting to unlatch.

This Emergency Stop pushbutton is critical for safety circuits in all types of machinery and industrial processes, providing a quick and reliable way to halt operations in hazardous situations. Its robust design ensures dependable performance when activated.

Stanlo Automation, a veteran-owned surplus industrial automation parts distributor, stocks the Siemens 3SU1051-1HB20-0AA0. We ensure you have access to vital safety components. Count on Stanlo for quality, reliability, and competitive pricing on your automation needs.

Technical specifications

Actuator Type	Emergency Stop mushroom pushbutton
Color	Red
Illumination	Yes
Contact Type	Positive latching
Release Mechanism	Rotate-to-unlatch
Mounting Diameter	22 mm
Enclosure Material	Metal
Standard	EN ISO 13850
Actuator Diameter	40 mm

Common applications

Machine safety circuits

Industrial emergency stop systems

Manufacturing equipment

Automation controls

Process safety

Hazardous area control

Compatible systems

Siemens safety relays Siemens 3SU1 command devices Safety circuits

Also known as

Siemens 3SU1 E-Stop button 3SU1051-1HB20 Red mushroom E-stop Twist to release emergency stop

Replaces / compatible with

Direct replacement for existing Siemens 3SU1 E-STOP units and compatible with Siemens 3SU1 control units for safety circuits.

Technical note

Expert tip

This E-STOP button must be connected to a safety-rated control module or safety relay to ensure compliance with safety standards.

What happens next?

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Frequently asked questions

What is the release mechanism for the Siemens 3SU1051-1HB20-0AA0 Emergency Stop pushbutton?

The Siemens 3SU1051-1HB20-0AA0 Emergency Stop pushbutton features a rotate-to-unlatch mechanism. Once pressed, the button latches in place and must be twisted to reset it to its normal position.