Siemens Emergency stop, mushroom, p/button, illuminable, 22mm Part number 3SU1158-1HB20-1PT0

Product Overview

The Siemens 3SU1158-1HB20-1PT0 is an illuminated emergency-stop (E-STOP) mushroom push-button from the SIRIUS ACT series. It features a 22 mm mounting diameter, a red 40 mm mushroom actuator, metal high-gloss construction, and a twist-to-release mechanism. The integrated LED illumination enhances visibility, making it suitable for machine and process control applications requiring a reliable emergency stop function.

Key Features

• Illuminated emergency-stop mushroom actuator
• Red 40 mm round actuator for maximum visibility
• Twist-to-release design for reset after activation
• 2 NC contacts for safety-related control circuits
• 22 mm panel mounting diameter
• Metal high-gloss front for durability and rugged environments
• High ingress protection rating: IP66 / IP67 / IP69K
• Wide operating temperature range: -25 °C to +70 °C

Technical Specifications

• Article Number: 3SU1158-1HB20-1PT0
• Series: SIRIUS ACT 3SU11
• Mounting Cut-out: 22.3 mm round
• Actuator Diameter: 40 mm
• Contact Configuration: 2 NC
• Illumination Voltage Range: 24…240 V AC/DC
• Rated Insulation Voltage: 500 V
• Ingress Protection: IP66, IP67, IP69K (front)
• Mechanical Service Life: approx. 300,000 cycles
• Ambient Operating Temperature: –25 °C to +70 °C
• Approximate Dimensions: Height 46.4 mm, Width 75 mm, Depth 70.6 mm

Compliance & Certifications

• Complies with EN ISO 13850 for emergency stop devices
• Meets industrial switchgear standards for safety and reliability
• Suitable for use in machine-control and automation environments

Applications

This illuminated E-STOP button is ideal for use in machinery, production lines, robotics systems, packaging equipment and all industrial installations where a highly visible, robust and safety-certified emergency-stop device is required. The twist-to-release mechanism prevents accidental resets, and the LED illumination ensures clear operator visibility even in low-light conditions.