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Siemens 3SU1100-1HB20-1PG0 22mm E-Stop Mushroom Pushbutton

Siemens 3SU1100-1HB20-1PG0 22mm E-Stop mushroom, rotate-to-unlatch, 2 NC.

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ManufacturerSiemens

Part number3SU1100-1HB20-1PG0

Actuator Type Emergency Stop Mushroom

Shape Round

Size 22 mm

Material Plastic

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Veteran-owned

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22mm mushroom E-stop 40mm red actuator head Positive latching Rotate-to-unlatch reset 'EMERGENCY STOP' inscription 2 NC contacts Screw terminals

Product description

The Siemens 3SU1100-1HB20-1PG0 is a 22mm round, plastic EMERGENCY STOP mushroom pushbutton with a 40mm red head. It features positive latching according to EN ISO 13850, with a rotate-to-unlatch reset mechanism. This unit includes a yellow backing plate with the inscription 'EMERGENCY STOP' and provides two normally closed (NC) contacts, utilizing screw terminals.

This safety actuator is designed for robust emergency shutdown of machinery, offering redundant NC contacts for increased safety integrity in control circuits.

Source your Siemens 3SU1100-1HB20-1PG0 from Stanlo Automation, a veteran-owned surplus parts distributor. We offer reliable components to ensure the safety and functionality of your industrial systems.

Technical specifications

Actuator Type	Emergency Stop Mushroom
Shape	Round
Size	22 mm
Material	Plastic
Color	Red
Diameter	40 mm
Operation	Positive Latching
Reset	Rotate-to-unlatch
Standard	EN ISO 13850
Contact Configuration	2 NC
Terminal Type	Screw Terminal
Inscription	EMERGENCY STOP

Common applications

Industrial safety systems

Machine emergency stop

Control stations

Redundant safety circuits

Hazardous automation

Compatible systems

SIRIUS 3SU1 series

Also known as

Siemens 22mm E-stop 2NC SIRIUS 3SU1 mushroom safety button Red mushroom emergency stop

Replaces / compatible with

Designed for safety circuits requiring two normally closed contacts for emergency stop functionality with a rotate-to-unlatch reset.

Technical note

Expert tip

Utilizing two NC contacts in series for the emergency stop circuit is a common practice to achieve higher safety ratings due to redundancy.

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Frequently asked questions

Why does the Siemens 3SU1100-1HB20-1PG0 have two NC contacts?

The Siemens 3SU1100-1HB20-1PG0 features two NC contacts to provide redundant switching in safety-critical applications. This increases the reliability and safety integrity of the emergency stop circuit.