Technical Parameters
General Characteristics
Product Type: Selector Switch
Family / Series: Compact selector switch
Actuator Type: Short handle knob, non‑illuminated
Number of Positions: 3 (maintained in all positions)
Operation Mode: Maintained (not spring‑return)
Electrical Ratings
Rated Operational Voltage: up to 300 V AC/DC
Rated Current (AC‑15): approx. 2 A @ 240 V AC
Rated Current (DC‑13): approx. 0.3 A @ 24 V DC (typical)
Contact Configuration: 2 Normally Open (2 NO), 0 Normally Closed (0 NC)
Rated Insulation Voltage: typically around 300 V
Rated Impulse Withstand Voltage: approx. 6 kV (typical for compact pilot devices)
Mechanical & Connection
Panel Cut‑out / Mounting Hole: 22 mm diameter for standard industrial controls
Bezel / Front Ring: Chrome metal
Terminal Type: Screw terminals
Mechanical Durability: Typically ~500,000 operations
Handle Color: Black
Environmental & Protection
Degree of Protection: IP20 (front) with compatibility for higher NEMA/IP enclosure ratings (NEMA 1, 3R, 4X, 12, 13)
Operating Temperature: approx. ‑25 °C to +70 °C
Storage Temperature: approx. ‑40 °C to +85 °C
Mounting: Panel mount with secure nut/clip
The ABB C3SS1‑30B‑20 is a compact, panel‑mounted selector switch designed for industrial control and automation systems. It features a 3‑position maintained action allowing selection between three fixed positions (commonly labeled A, B, and C) using a short black knob. This non‑illuminated selector provides reliable manual control of electrical circuits and machine functions in control panels, distribution boards, and automation cabinets.