Finder 27.05.8.230.4000 Impulse Switch 2 NO 230 V AC 10 A 2500 VA DIN Rail

The Finder 27.05.8.230.4000 is a modular impulse switch (latching relay) that changes contact state with each control pulse and holds it without continuous coil power. This 2 NO version switches up to 10 A / 250 V AC, making it suitable for lighting and general control circuits where a maintained signal is not available.

Highlights

• 2 normally open contacts, 10 A rated current
• 230 V AC coil, 50/60 Hz
• Switching capacity 2500 VA (AC1)
• DIN rail mounting, 17.5 mm width (1 module)
• Silver-nickel contacts for reliable switching

In daily use

The impulse switch toggles its output state on each voltage pulse applied to the coil. It is commonly used with pushbuttons in stairwell lighting, corridor lighting, or any application where multiple control points must operate a single load. The compact 1-module housing saves space in distribution boards.

Full specifications

• Contact configuration: 2 NO
• Control voltage: 230 V AC
• Rated current: 10 A
• Rated voltage: 250 V AC
• Switching capacity: 2500 VA
• Coil power: 4.5 VA
• Mounting: DIN rail
• Module width: 17.5 mm
• Contact material: AgNi
• Electrical life: 100,000 cycles
• Mechanical life: 10,000,000 cycles
• Operating temperature: -40 to +50 °C
• Dielectric strength: 4 kV AC
• Protection degree: IP20 terminals, IP40 front

Final note

A compact and reliable impulse switch for lighting control and similar applications, with proven Finder quality.