Two-position DIN-rail switch FF WB-1Y 16A 1NO 230V AC with yellow indicator

FF WB-1Y is a two-position DIN-rail switch designed for control circuits and distribution panels. It provides manual on/off switching via a single normally open contact rated for up to 16 A at 230 V AC. The unit mounts to a standard DIN rail and includes a built-in yellow indicator to show switch position or power status, making it suitable for compact electrical cabinets, automation stations and localized control of lighting or motors.

Advantages

The switch occupies minimal module width and is compatible with standard DIN-rail mounting, simplifying installation in distribution boards and control enclosures. Its 16 A, 230 V AC rating allows use in a range of low-voltage AC control and power circuits, while the single normally open contact offers straightforward switching logic. The yellow built-in indicator provides clear visual feedback of the switch state without additional wiring for an external lamp.

Suitable for

• Manual control circuits in residential and light commercial distribution boards
• Local switching of lighting circuits and HVAC control panels
• Auxiliary control for motors, pumps and automation stations
• Applications requiring a compact DIN-rail mounted selector with visual status indication

Key specifications

• Contact configuration: single normally open (1NO)
• Contact rating: 16 A at 230 V AC
• Mounting: standard DIN-rail
• Switch positions: two-position (on/off)
• Indicator: integrated yellow illumination for status indication
• Typical use: manual switching in control and distribution panels

How to use

Install the switch onto a standard 35 mm DIN rail inside the electrical enclosure and connect the line and load conductors to the designated terminals following applicable wiring rules and safety standards. Use the manual actuator to select the required position; the built-in yellow indicator will illuminate to indicate the active state. Verify that the connected circuit does not exceed the 16 A, 230 V AC rating and implement proper overcurrent protection upstream.

Usage recommendations

For reliable operation, mount the switch in a dry, vibration-free area of the panel, keep terminals tightened to the manufacturer’s specified torque, and ensure upstream protection such as a circuit breaker or fuse is in place sized for the connected load. Periodically inspect connections and the indicator for signs of wear or discoloration and replace the device if contact performance degrades.