Why Choose the Finder 27.22.8.230.4000 Impulse Relay?
The Finder 27.22.8.230.4000 is a modular electromechanical impulse relay designed for convenient lighting control and electrical switching in residential and commercial installations. Part of the Finder Series 27, it provides a practical solution for controlling lighting circuits from multiple push-button locations without requiring conventional multi-way switching arrangements.
Featuring a 230 V AC operating coil and two normally open (2 NO) contacts, the relay uses an impulse-operated, mechanically maintained switching mechanism. Each suitable control pulse advances the switching mechanism, allowing connected lighting circuits to be switched without requiring the operating coil to remain continuously energised.
The Finder 27.22.8.230.4000 is particularly useful for corridors, staircases, communal areas and other installations where lighting needs to be operated from several positions. Its impulse relay design reduces the need for complex switching wiring while providing a dependable mechanical switching function for compatible electrical loads.
Key Advantages
- Impulse-operated switching enables lighting control using momentary push buttons.
- 230 V AC operating coil suitable for compatible mains-voltage control circuits.
- Two normally open contacts provide switching of two compatible circuits.
- Mechanically maintained contact position eliminates the need for continuous coil energisation.
- Supports lighting control from multiple push-button locations.
- Helps simplify wiring compared with conventional multi-way lighting arrangements.
- Electromechanical construction provides reliable switching operation.
- Suitable for residential and commercial lighting installations.
- Can be integrated into compatible electrical control and distribution assemblies.
- Provides a practical solution for corridors, staircases and communal lighting.
Key Features
- Finder Series 27 electromechanical impulse relay.
- 230 V AC rated coil voltage.
- 50/60 Hz AC control supply.
- Two normally open switching contacts.
- Impulse-operated, mechanically maintained switching mechanism.
- Momentary push-button control.
- Designed for lighting circuits with multiple control points.
- Coil energisation required only during switching pulses.
- Electromechanical operation without continuous holding power.
- Suitable for installation in compatible electrical enclosures.
- Designed for residential and commercial lighting control applications.
Reliable Impulse Switching for Multi-Point Lighting Control
The Finder 27.22.8.230.4000 operates using short electrical impulses applied to its 230 V AC coil. Rather than maintaining the coil energised throughout the operating period, the relay uses a mechanical mechanism to retain its selected contact position after the control pulse ends.
This operating principle makes impulse relays particularly suitable for lighting installations with multiple push-button control points. Push buttons can be positioned at entrances, exits, stair landings and other convenient locations, allowing the same lighting circuit to be controlled from several positions.
The relay's two normally open contacts provide switching capability for compatible electrical circuits. The switching sequence and circuit arrangement should be implemented according to the applicable Finder wiring diagram, with the connected loads selected within the manufacturer's specified ratings.
Finder Series 27 impulse relays offer a practical alternative to traditional multi-way lighting switching arrangements, combining mechanical contact retention with straightforward momentary control for building electrical installations.
Typical Applications
- Residential lighting controlled from multiple locations.
- Staircase and landing lighting.
- Corridor and hallway lighting.
- Communal lighting in apartment buildings.
- Commercial premises and office lighting.
- Lighting systems operated by momentary push buttons.
- Multi-point electrical switching installations.
- Building services lighting control.
- Electrical refurbishment projects replacing complex multi-way switching.
- Compatible lighting circuits requiring mechanically maintained switching.
