Siemens 3SU1150-0AB20-1CA0 SIRIUS ACT Selector Switch, 22mm, 2-Position, 1NO, Black

The Siemens 3SU1150-0AB20-1CA0 is a robust 22mm selector switch from the SIRIUS ACT series, engineered for reliable control in industrial environments. Its latching 2-position operation with a 90° switching angle ensures precise, tactile actuation for machine control panels, conveyor systems, and automation tasks. The black actuator and silver front ring provide clear visual status, while the IP66/IP67/IP69K front protection makes it suitable for demanding washdown applications.

Advantages

This selector switch offers exceptional durability and ease of installation. The screw terminal connection allows secure wiring without special tools, and the modular design supports quick replacement of contact blocks. The high degree of front protection (IP66, IP67, IP69K) and NEMA ratings (4X, 12, 13) ensure resistance to dust, water jets, and temporary submersion, reducing downtime in harsh conditions. Its compact 22mm mounting diameter fits standard panel cutouts, and the plastic enclosure provides electrical insulation and corrosion resistance.

Suitable for

• Machine tool control panels requiring manual mode selection
• Conveyor systems and material handling equipment
• Food and beverage processing lines with frequent washdowns
• Packaging machinery and automated assembly stations
• HVAC and pump control cabinets

Key specifications

• Brand: Siemens
• Model: 3SU1150-0AB20-1CA0
• Product Type: Selector Switch
• Series: SIRIUS ACT 3SU1
• Mounting Diameter: 22 mm
• Design: Round
• Actuator Colour: Black
• Number of Switch Positions: 2
• Switching Sequence: O-I
• Switching Angle: 90°
• Operation Type: Latching
• Number of NO Contacts: 1
• Number of NC Contacts: 0
• Connection Type: Screw Terminal
• Degree of Protection (Front): IP66, IP67, IP69K
• NEMA Rating: 4X, 12, 13
• Operating Temperature Range: -25 to +70 °C
• Rated Insulation Voltage (Ui): 500 V
• Rated Operational Current (Ie) at AC-15: 6 A (at 230V)

Recommendations

For optimal performance, pair this selector switch with Siemens 3SU1400 series contact blocks and 3SU1500 series LED indicators to create a complete control station. Ensure proper panel thickness (1-6 mm) and torque settings during installation. Use in applications requiring frequent manual switching and high reliability.