Finder Installation Relay 22.22.8.012.4000 (222280124000)

In electrical installations, controlling high-current circuits with a low-power signal often requires a relay that maintains its state without continuous coil power. The Finder 22.22.8.012.4000 is a latching (bistable) installation relay that provides two normally open contacts, each rated for 16 A at 250 V AC. It is designed for DIN rail mounting and fits a single 17.5 mm module, making it suitable for distribution boards and control panels.

Who is it for

This relay is intended for electricians and panel builders who need a compact, energy-efficient switching solution for lighting, heating, or motor control circuits. Its latching operation reduces coil power consumption to zero after switching, which is beneficial in applications where heat generation or energy use must be minimized.

Main features

• Latching (bistable) operation: the relay changes state on a pulse and remains in that position without continuous coil power.
• Two normally open (NO) contacts with silver nickel (AgNi) contact material for reliable switching.
• Rated load of 4000 VA at 250 V AC, with peak switching current up to 30 A.
• Coil voltage: 12 V AC, with a coil power of 5.5 VA.
• DIN rail mounting (EN 60715), module width 17.5 mm (1 module).
• Operating temperature range: -40 to +40 °C.

Specifications

• Relay type: Latching Relay (Bistable)
• Number of contacts: 2 NO
• Contact material: AgNi (Silver Nickel)
• Rated current (AC1): 16 A
• Rated voltage: 250 V AC
• Max. switching voltage: 400 V AC
• Max. switching current: 30 A (peak)
• Rated load (AC1): 4000 VA
• Coil voltage: 12 V AC
• Coil power (AC): 5.5 VA
• Dielectric strength (coil-contact): 4 kV AC
• Dielectric strength (open contacts): 1 kV AC
• Electrical life (AC1): 100,000 cycles
• Mechanical life: 1,000,000 cycles
• Operating temperature range: -40 to +40 °C
• Mounting type: DIN Rail (EN 60715)
• Module width: 1 module (17.5 mm)
• Protection degree: IP20

Tips

When using this latching relay, ensure that the control signal is a pulse of sufficient duration to guarantee complete switching. Because the coil is only energized momentarily, the circuit wiring must be able to handle the inrush current of the coil. For inductive loads, consider using appropriate suppression devices to protect the contacts and extend relay life.