Finder 027.00 – 27 Series Step Relays – Accessory

Why Choose the Finder 027.00 Illuminated Pushbutton Adapter?

The Finder 027.00 is a compact illuminated pushbutton adapter module designed for use with compatible Finder 27 Series impulse relays. Developed for 230 V AC lighting control installations, this accessory allows compatible impulse relays to operate reliably when illuminated pushbuttons are connected to the switching input circuit.

Illuminated pushbuttons commonly incorporate small indicator lamps that draw a continuous current even when the pushbutton is not pressed. This residual current can interfere with the operation of certain impulse relays. The Finder 027.00 capacitor module provides the necessary electrical adaptation, allowing compatible Finder 27 Series relays to operate with up to 24 illuminated pushbuttons, each drawing a maximum of 1 mA at 230 V AC.

Designed for direct installation onto the compatible relay, the Finder 027.00 provides a straightforward solution without requiring a separate mounting enclosure. It is suitable for residential, commercial and building services lighting installations where illuminated pushbuttons are used to control lighting circuits from multiple locations.

Key Advantages

• Dedicated illuminated pushbutton adapter for compatible Finder 27 Series impulse relays.
• Supports connection of up to 24 illuminated pushbuttons in a suitable 230 V AC control circuit.
• Designed for illuminated pushbuttons drawing a maximum of 1 mA each.
• Helps prevent unwanted relay operation caused by residual current from pushbutton indicator lamps.
• Direct plug-in installation onto the compatible Finder impulse relay.
• Compact construction minimises additional installation space.
• Suitable for lighting circuits controlled from multiple pushbutton locations.
• Supports residential and commercial lighting control applications.
• Provides a purpose-designed accessory for compatible Finder 27.01, 27.05 and 27.06 relays.
• Simple integration into existing compatible impulse relay installations.

Key Features

• Finder 027.00 illuminated pushbutton adapter module.
• Part of the Finder 27 Series accessories range.
• Designed for 230 V AC illuminated pushbutton applications.
• Compatible with Finder 27.01 impulse relays.
• Compatible with Finder 27.05 impulse relays.
• Compatible with Finder 27.06 impulse relays.
• Supports up to 24 illuminated pushbuttons when used within the specified electrical limits.
• Maximum illuminated pushbutton current of 1 mA per pushbutton.
• Capacitor-based accessory for illuminated pushbutton control circuits.
• Installed directly onto the compatible impulse relay.
• Connected in parallel with the relay coil according to Finder's wiring arrangement.
• Suitable for lighting control systems using momentary pushbuttons.
• Compact module measuring approximately 12 mm × 20.5 mm × 27 mm.
• No independent load-switching contacts.
• Designed for integration into compatible relay control circuits.
• Manufacturer part number 027.00.

Reliable Impulse Relay Operation with Illuminated Pushbuttons

Impulse relays provide a practical method of controlling lighting circuits from multiple locations using momentary pushbuttons. Each pushbutton command changes the switching state of the relay, allowing one or more lighting circuits to be controlled without conventional multi-way switch arrangements. In installations using illuminated pushbuttons, however, the indicator lamps can allow a small current to flow through the control circuit even when no pushbutton is being pressed.

The Finder 027.00 is designed to address this requirement in compatible Finder 27 Series impulse relay installations. By fitting the module directly onto the relay and connecting it in parallel with the coil according to Finder's wiring diagram, installers can accommodate up to 24 illuminated pushbuttons rated at a maximum of 1 mA each at 230 V AC. This supports dependable relay operation in corridors, stairwells, communal lighting systems and other installations where illuminated pushbuttons improve switch visibility.

Typical Applications

• Illuminated pushbutton control of Finder 27.01 impulse relays.
• Illuminated pushbutton installations using Finder 27.05 relays.
• Lighting control systems incorporating Finder 27.06 impulse relays.
• Residential lighting circuits with illuminated wall pushbuttons.
• Communal hallway and corridor lighting.
• Stairwell lighting control systems.
• Commercial building lighting installations.
• Multi-location lighting switching arrangements.
• Building refurbishment and electrical modernisation projects.
• Lighting control installations using 230 V AC illuminated pushbuttons.
• Electrical control circuits requiring compatibility with pushbutton indicator lamps.
• Maintenance and modification of existing Finder impulse relay systems.