Finder Impulse Relay 16A 250V 1NO 24V AC DIN Rail 20.21.8.024.4000

In commercial and residential buildings, lighting circuits often need to be controlled from multiple locations. The Finder 20.21.8.024.4000 impulse relay provides a reliable solution: each press of a momentary pushbutton toggles the relay state, allowing lights to be switched on or off from any number of points. With a 16 A switching capacity and 24 V AC coil, it is suited for controlling lighting loads in corridors, staircases, and large rooms.

Key specifications

• Relay type: Impulse (latching)
• Contact configuration: 1 NO
• Rated switching current: 16 A
• Rated switching voltage: 250 V AC
• Coil voltage: 24 V AC
• Mounting: DIN rail (EN 60715)
• Module width: 17.5 mm (1 module)
• Terminal type: Screw terminals

Why choose it

This relay offers a compact, DIN-rail mountable design that simplifies installation in distribution boards. Its latching operation ensures that the relay maintains its state without continuous coil power, reducing energy consumption. The AgSnO2 contacts provide reliable switching for lighting loads.

Ideal use cases

• Staircase lighting with multiple pushbuttons
• Corridor lighting in hotels and offices
• Controlling lighting from several locations in residential buildings

Good to know

The relay is designed for AC coil operation and has a mechanical life of 1,000,000 cycles. It operates within a temperature range of -40 to +40 °C. The protection degree is IP20, suitable for installation in dry indoor environments.