Key Features
Selector Type: 3‑position maintained rotary switch — remains in the selected position until manually changed.
Actuator: Short red handle for easy manual operation.
Illumination: Non‑illuminated design.
Compact Construction: Space‑efficient form factor for panel mounting.
Robust Design: Suited for industrial environments.
Electrical Ratings
Contact Configuration: 2 Normally Open (2 NO) auxiliary contacts for switching control circuits.
Rated Operational Voltage: Suitable for low‑voltage AC and DC control circuits — up to ~300 V.
Rated Operational Current:
Typical AC control duty currents (e.g., ~1 A at 220–240 V AC).
DC control duty at lower voltages (e.g., 24–125 V DC).
Insulation: Designed for safe use within IEC/low‑voltage control standards.
Switching Categories: Suitable for pilot/control duty loads.
Mechanical & Environmental
Positions: Three maintained positions (e.g., A, B, C).
Mechanical Durability: Designed for a high number of actuation cycles.
Operating Temperature: Typical industrial ambient range (approx. –25 °C to +70 °C).
Storage Temperature: Broader storage range.
Front Protection: Good dust and splash resistance when installed properly; basic terminal protection when panel‑mounted.
Physical & Installation
Panel Cut‑out: Standard 22 mm diameter for pilot devices.
Body/Bezel: Chrome metal front bezel with durable plastic housing.
Terminals: Screw‑type terminals for secure wiring.
Dimensions: Slim profile for dense panel layouts.
Typical Applications
Mode selection in control panels (Off/Auto/Manual, Forward/Off/Reverse).
Operator interfaces for machinery and automation equipment.
PLC and relay logic inputs requiring manual position selection.
Control logic switching where a simple, reliable 3‑position input is needed.
The ABB C2SS1‑30R‑20 is a compact 3‑position rotary selector switch designed for industrial control panels and automation systems. It features a short red handle for manual selection between three maintained positions, commonly used for mode or function selection (such as Off/Auto/Manual). The switch is non‑illuminated and built for reliable performance in control logic and machine operator interfaces.