The Siemens 3SU1150-1HB20-1FG0 is a 22 mm round, metal emergency-stop mushroom push-button from the SIRIUS ACT range. It features a shiny red 40 mm diameter actuator, positive-latching mechanism, and a twist-to-reset operation type, compliant with EN ISO 13850. The unit is designed for panel mounting in industrial machines and control systems where safe emergency shutdown is required.
The 3SU1150-1HB20-1FG0 emergency-stop push-button is ideal for machine-tool control panels, manufacturing automation systems, safety circuit installations and general industrial equipment requiring a high-visibility, robust manual emergency shut-off device. Its twist-to-reset functionality ensures a clear reset action after an incident and helps comply with safety regulations for operator-accessible emergency stop functions.
| Colour button | Red |
| Degree of protection (IP) | IP67/IP69K |
| Degree of protection (NEMA) | Other |
| Height opening | 46.4 mm |
| Hole diameter | 22.3 mm |
| Number of command positions | 1 |
| Number of contacts as normally closed contact | 1 |
| Number of contacts as normally open contact | 1 |
| Type of button | Mushroom |
| Width opening | 75 mm |
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