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Siemens 3SU1150-1HB20-1FH0 Emergency Stop Pushbutton - NOT-HALT

Siemens 3SU1150-1HB20-1FH0 22mm E-Stop Mushroom Actuator

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ManufacturerSiemens

Part number3SU1150-1HB20-1FH0

Actuator Type Mushroom actuator

Size 22 mm

Shape Round

Material Metal

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22mm metal mushroom actuator Positive latching Rotate-to-unlatch release 'NOT-HALT' inscription 1 NO + 1 NC contacts Screw terminals

Product description

The Siemens 3SU1150-1HB20-1FH0 is a 22mm round, metal, shiny red mushroom-type actuator for emergency stop functions, compliant with EN ISO 13850. It features positive latching and a rotate-to-unlatch mechanism. This specific model is equipped with a yellow backing plate and the inscription 'NOT-HALT', indicating its emergency stop purpose. It includes a holder and offers 1 normally open (NO) and 1 normally closed (NC) contact configuration with screw terminals.

This actuator is designed for critical safety applications in machinery and control systems where rapid and reliable emergency shutdown is paramount. Its robust metal construction makes it suitable for harsh industrial environments across sectors like automotive manufacturing, food processing, and assembly lines, ensuring operator safety.

Stanlo Automation, a trusted veteran-owned supplier of surplus industrial automation parts, provides the Siemens 3SU1150-1HB20-1FH0. We help businesses maintain their equipment with readily available, high-quality components at competitive prices.

Technical specifications

Actuator Type	Mushroom actuator
Size	22 mm
Shape	Round
Material	Metal
Color	Shiny Red
Diameter	40 mm
Latching	Positive
Standard	EN ISO 13850
Release	Rotate-to-unlatch
Inscription	NOT-HALT
Holder	Included
Contacts	1 NO + 1 NC
Terminal Type	Screw Terminal

Common applications

Emergency Shutdown

Industrial Machinery

Safety Controls

Control Panels

Manufacturing Plants

Automation Systems

Compatible systems

Compatible with Siemens SIRIUS 3SU1 series mounting elements and contact blocks.

Also known as

Siemens NOT-HALT button 3SU1 Emergency Stop 22mm Red E-Stop SIRIUS 3SU1150-1H

Replaces / compatible with

This actuator is designed for emergency stop functions and can be integrated into various safety circuits. Refer to system documentation for direct replacement suitability.

Technical note

Expert tip

The positive latching ensures the button remains in the actuated state until intentionally reset, preventing accidental restarts.

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Frequently asked questions

What does the 'NOT-HALT' inscription signify on the Siemens 3SU1150-1HB20-1FH0?

The 'NOT-HALT' inscription on the Siemens 3SU1150-1HB20-1FH0 clearly labels the actuator as an emergency stop control. It's a standardized way to indicate that activating this button will immediately halt machine operation for safety purposes.