Why Choose the Finder 11.42.8.230.0000 Light-Dependent Relay?
The Finder 11.42.8.230.0000 is a versatile modular light-dependent relay designed to control two lighting circuits automatically according to ambient light levels. Part of the Finder 11 Series, this twilight switch provides two independently adjustable outputs, making it ideal for staged lighting and applications where separate groups of lamps must operate at different brightness thresholds.
The relay works with a separate photosensor to monitor surrounding illumination. Its two adjustment ranges allow one lighting circuit to operate between 1 and 80 lx while the second can be configured between 20 and 1,000 lx. This supports staged operation, allowing selected lighting to switch on earlier while additional lighting activates as natural light continues to fall.
Operating from a 230 V AC supply, the Finder 11.42.8.230.0000 provides one changeover contact and one normally open contact, each rated at 12 A. Its 35 mm-wide enclosure mounts directly onto a DIN rail inside a protected electrical panel, providing a compact solution for multi-stage automatic lighting control.
Key Advantages
- Automatic control of two independent lighting circuits.
- Separate light-level adjustments enable staged lighting operation.
- Wide combined sensitivity coverage from 1 to 1,000 lx.
- One changeover and one normally open output contact.
- Timed operation prevents nuisance switching caused by brief light changes.
- DIN rail-mounted design for straightforward control-panel installation.
Key Features
- Finder 11 Series modular light-dependent relay.
- Two independently adjustable lighting outputs.
- 230 V AC supply at 50 / 60 Hz.
- 1 changeover contact plus 1 normally open contact.
- 12 A rated current per output contact.
- First sensitivity range adjustable from 1 to 80 lx.
- Second sensitivity range adjustable from 20 to 1,000 lx.
- 15 s switch-on delay.
- 30 s switch-off delay.
- Separate external photosensor for accurate ambient-light measurement.
- 35 mm DIN rail mounting for modular electrical panels.
Flexible Two-Stage Automatic Lighting Control
The Finder 11.42 uses a remotely positioned photosensor to monitor ambient illumination and operate two separate lighting outputs. Each output has its own light-level adjustment, allowing different groups of lamps to switch independently as natural light conditions change.
The integrated switch-on and switch-off delays help prevent lightning, vehicle headlights, temporary shadows and other brief changes in illumination from causing unwanted operation. This provides stable lighting control while reducing unnecessary contact operation and lamp switching.
Typical Applications
- Two-stage street and pathway lighting.
- Commercial exterior and security lighting.
- Industrial yards, loading bays and storage areas.
- Car parks requiring separate lighting groups.
- Shop-window and illuminated-sign control.
- Architectural and landscape lighting systems.
- Energy-efficient building automation installations.
