Finder 11.42.8.230.0000 is a 230 V AC modular light-dependent relay with two independently adjustable 12 A outputs and sensitivity ranges covering 1 to 1,000 lx for staged automatic lighting control.
£107.75
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.
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.
| Manufacturer | Finder |
|---|---|
| Series | 11 Series |
| Model | 11.42.8.230.0000 |
| Product type | Dual-output modular light-dependent relay |
| Nominal supply voltage | 230 V AC |
| Supply frequency | 50 / 60 Hz |
| Operating voltage range | 184–253 V AC |
| Rated power consumption | 7.4 VA at 50 Hz |
| Number of outputs | 2 independent outputs |
| Contact configuration | 1 changeover contact plus 1 normally open contact |
| Rated contact current | 12 A |
| Rated contact voltage | 250 V AC |
| Maximum switching capacity | 3,000 VA AC1 |
| AC15 switching capacity | 750 VA at 230 V AC |
| Incandescent and halogen lamp load | 2,000 W at 230 V AC |
| Fluorescent lamp load | 750 W at 230 V AC |
| CFL and LED lamp load | 400 W at 230 V AC |
| First sensitivity range | 1–80 lx |
| Second sensitivity range | 20–1,000 lx |
| Switch-on delay | 15 s |
| Switch-off delay | 30 s |
| Maximum photosensor cable distance | 50 m |
| Operating temperature | −20 to +50 °C |
| Relay protection rating | IP20 |
| Mounting type | 35 mm DIN rail |
| Dimensions (H × W × D) | 88.8 × 35 × 60.8 mm |
| Applicable standards | EN 60669-1 and EN 60669-2-1 |
This light-dependent relay automatically controls two independent lighting circuits according to the ambient illumination measured by an external photosensor.
The relay provides two independent outputs, comprising one changeover contact and one normally open contact.
The first output can be adjusted between 1 and 80 lx, while the second output can be adjusted between 20 and 1,000 lx.
Each output contact is rated at 12 A and 250 V AC, with a maximum AC1 switching capacity of 3,000 VA.
The relay should be installed on a 35 mm DIN rail inside a protected electrical panel, with the photosensor positioned away from light emitted by the controlled lamps.
Finder 11 Series light-dependent relays provide dependable automatic lighting control, with the dual-output 11.42 supporting flexible staged operation across commercial, industrial and public lighting systems.{ "@context": "https://schema.org/", "@type": "Product", "name": "Finder 11.42.8.230.0000 Dual-Output Light-Dependent Relay 230 V AC", "sku": "11.42.8.230.0000", "mpn": "11.42.8.230.0000", "brand": { "@type": "Brand", "name": "Finder" }, "category": "Light-Dependent Relays", "description": "Finder 11.42.8.230.0000 is a 230 V AC modular light-dependent relay with two independently adjustable 12 A outputs and sensitivity ranges covering 1 to 1,000 lx for staged automatic lighting control.", "additionalProperty": [ { "@type": "PropertyValue", "name": "Supply voltage", "value": "230 V AC" }, { "@type": "PropertyValue", "name": "Contact configuration", "value": "1 changeover contact plus 1 normally open contact" }, { "@type": "PropertyValue", "name": "Rated contact current", "value": "12 A" }, { "@type": "PropertyValue", "name": "Sensitivity ranges", "value": "1–80 lx and 20–1,000 lx" }, { "@type": "PropertyValue", "name": "Protection rating", "value": "IP20" } ] } { "@context": "https://schema.org", "@type": "FAQPage", "inLanguage": "en-GB", "mainEntity": [ { "@type": "Question", "name": "What is the Finder 11.42.8.230.0000 used for?", "acceptedAnswer": { "@type": "Answer", "text": "This light-dependent relay automatically controls two independent lighting circuits according to the ambient illumination measured by an external photosensor." } }, { "@type": "Question", "name": "How many outputs does this relay provide?", "acceptedAnswer": { "@type": "Answer", "text": "The relay provides two independent outputs, comprising one changeover contact and one normally open contact." } }, { "@type": "Question", "name": "What sensitivity ranges are available?", "acceptedAnswer": { "@type": "Answer", "text": "The first output can be adjusted between 1 and 80 lx, while the second output can be adjusted between 20 and 1,000 lx." } }, { "@type": "Question", "name": "What is the contact rating of the Finder 11.42?", "acceptedAnswer": { "@type": "Answer", "text": "Each output contact is rated at 12 A and 250 V AC, with a maximum AC1 switching capacity of 3,000 VA." } }, { "@type": "Question", "name": "Where should the Finder 11.42 be installed?", "acceptedAnswer": { "@type": "Answer", "text": "The relay should be installed on a 35 mm DIN rail inside a protected electrical panel, with the photosensor positioned away from light emitted by the controlled lamps." } } ] }
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2025 has been a big year for LED Controls, and our blog has expanded accordingly. We've covered a wide range of topics across industrial control and factory automation this year. From core technology explainers and new product releases to panel building best practice...
2025 has been a big year for LED Controls, and our blog has expanded accordingly. We've covered a wide range of topics across industrial control and factory automation this year. From core technology explainers and new product releases to panel building best practice...