• Manufacturer: Siemens
• Series: SIRIUS ACT (3SU11)
• Product Type: Pushbutton complete unit
• Model Number: 3SU1150-0AB40-1BA0
• Product Family: Actuators and indicators, 22 mm metal type

Function & Operation

• Momentary pushbutton (spring-return operation)
• Designed for industrial control and signaling applications
• Non-illuminated pushbutton
• Suitable for panel-mounted operator stations

Actuator Details

• Mounting Diameter: 22 mm
• Actuator Type: Flat pushbutton
• Actuator Shape: Round
• Actuator Color: Green
• Material (Front Ring): Metal, high-gloss
• Outer Diameter: ~29.45 mm

Electrical Specifications

• Contact Configuration: 1 NO (Normally Open)
• Switch Function: Off-Momentary
• Rated Voltage: Up to 500 V AC/DC
• Rated Current: Up to 10 A
• Rated Insulation Voltage: 500 V
• Surge Withstand Voltage: 6 kV
• Connection Type: Screw terminals

Mechanical Specifications

• Mounting Type: Panel mount
• Protection Rating (Front): IP66 / IP67 / IP69K
• Terminal Protection: IP20
• Number of Contact Modules: 1
• Net Weight: ~0.09 kg

Operating Conditions

• Operating Temperature Range: −25°C to +70°C
• Pollution Degree: 3

Standards & Approvals

• Approvals: CE, cULus, CCC
• Product Lifecycle: Active product

Key Notes

• This unit is a 22 mm round green momentary pushbutton with 1 NO contact, supplied as a complete device with actuator, holder, and contact block.
• It belongs to the SIRIUS ACT modular pushbutton range, designed for harsh industrial environments with high ingress protection ratings.