• Manufacturer: Siemens
• Series: SIRIUS ACT (3SU11)
• Product Type: Emergency stop mushroom pushbutton
• Model Number: 3SU1100-1HB20-1CH0

Function & Operation

• Emergency STOP pushbutton with positive latching
• Release Method: Twist (rotate-to-unlatch)
• Designed for emergency shutdown and safety circuits
• Complies with emergency stop safety standards

Actuator Details

• Mounting Diameter: 22 mm
• Actuator Type: Mushroom head
• Actuator Diameter: 40 mm
• Actuator Color: Red
• Background Plate Color: Yellow
• Material: Plastic

Electrical Specifications

• Contact Configuration: 1 NC (Normally Closed)
• Contact Type: SPST-NC
• Rated Voltage: Up to 500 V AC/DC
• Rated Current: Up to 10 A

Mechanical Specifications

• Terminal Type: Screw terminals
• Protection Rating: IP66
• Net Weight: ~0.08 kg

Standards & Compliance

• Standard: EN ISO 13850 (Emergency stop devices)
• Suitable for: Industrial control panels and machinery safety applications