Finder FIN 26.02.8.012.4000 Impulse Relay 12 V AC 2 NO 16 A DIN Rail

Electricians and panel builders use the Finder FIN 26.02.8.012.4000 impulse relay to control lighting circuits from multiple pushbuttons. It latches on each pulse, so a single pushbutton can toggle a light on and off without continuous coil power.

Key specifications

• Relay type: Impulse relay (latching)
• Coil voltage: 12 V AC
• Contact configuration: 2 NO (normally open)
• Contact rating: 16 A / 250 V AC
• Max switching power: 4000 VA (AC1)
• Contact material: AgNi (silver nickel)
• Coil power consumption: 10 VA
• Mounting: DIN rail, 1 module (17.5 mm wide)
• Dielectric strength coil-contact: 4 kV AC
• Operating temperature: -40 to +40 °C
• Mechanical life: 300,000 cycles
• Electrical life: 100,000 cycles at 16 A / 250 V AC
• Protection degree: IP20
• Rated insulation voltage: 250 V AC
• Rated impulse withstand voltage: 4 kV

Why choose it

This relay reduces wiring complexity in multi-point lighting control. Its latching action saves energy and prevents coil overheating, while the 16 A contacts handle high inrush currents from fluorescent or LED loads.

Ideal use cases

• Staircase lighting with pushbuttons on each floor
• Corridor lighting in offices and hotels
• Pulse-controlled switching in industrial control panels

Good to know

The relay fits standard DIN rails and occupies only one module width, saving space in distribution boards. It operates on 12 V AC control voltage, suitable for low-voltage control circuits.