Finder 12.81.8.230.0000 is a 110–230 V AC digital astronomical time switch with a 16 A SPDT changeover contact, automatic sunrise and sunset calculation, NFC programming and 35 mm DIN rail mounting.
£84.71
The Finder 12.81.8.230.0000 is a sophisticated digital astronomical time switch designed to control electrical loads according to calculated sunrise and sunset times. As part of the Finder 12 Series, it calculates astronomical switching times from the date, time and geographical location, making it particularly suitable for lighting and other applications that need to follow changing daylight hours throughout the year.
This single-channel astro time switch provides a 1 CO (SPDT) changeover contact and supports both astronomical and conventional time-based control. Location can be configured using geographical coordinates, with postcodes available for setting locations in many European countries, while an offset function allows switching times to be adjusted relative to calculated sunrise and sunset.
With a 110–230 V AC nominal supply and a 16 A contact rating at 250 V AC, the 12.81.8.230.0000 provides dependable control for mains-powered installations. It can be programmed in Classic mode using the front joystick or in Smart mode using NFC communication with a compatible smartphone, while its 35 mm DIN rail mounting enables straightforward installation in distribution boards and control panels.
Astronomical time switches such as the Finder 12.81.8.230.0000 calculate sunrise and sunset from the configured date, time and geographical location. This enables connected equipment to follow seasonal changes in daylight automatically without relying on an external light sensor.
The Finder 12.81 adds an offset function for switching before or after the calculated astronomical event and allows the Astro ON period to be overridden by conventional time-switch programming. NFC communication and front-panel joystick programming provide flexible configuration for new installations and subsequent schedule adjustments.
| Manufacturer | Finder |
|---|---|
| Series | 12 Series |
| Model | 12.81.8.230.0000 |
| Product type | Digital astronomical time switch |
| Number of channels | 1 |
| Contact configuration | 1 CO (SPDT) |
| Rated contact current | 16 A |
| Maximum peak current | 30 A |
| Rated contact voltage | 250 V AC |
| Rated load AC1 | 4000 VA |
| Rated load AC15 at 230 V AC | 750 VA |
| Nominal supply voltage | 110–230 V AC |
| Rated power | 2.9 W |
| Programming methods | Joystick / NFC |
| Astronomical functions | Sunrise and sunset calculation, offset and Astro ON override |
| Power backup | Yes |
| Operating temperature | -20 to +50 °C |
| Protection rating | IP20 |
| Electrical connection | Screw terminals |
| Mounting type | 35 mm DIN rail, EN 60715 |
The Finder 12.81.8.230.0000 is a digital astronomical time switch used to control electrical loads according to calculated sunrise and sunset times.
The 12.81.8.230.0000 has a nominal 110–230 V AC supply.
The time switch provides 1 CO (SPDT) changeover contact rated at 16 A and 250 V AC.
The time switch calculates sunrise and sunset using the configured date, time and geographical location, with an offset function allowing switching to occur before or after the calculated astronomical time.
Yes. The time switch can be programmed in Smart mode using NFC communication with a compatible smartphone, or in Classic mode using the front joystick.
Finder 12 Series astronomical time switches provide dependable automatic control for lighting and electrical installations, combining sunrise and sunset calculation with flexible programming, NFC communication and straightforward DIN rail installation.
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LED Controls is a specialist distributor of factory automation and industrial controls, supplying OEMs, machine builders, panel builders and end users throughout the UK and worldwide. As a trusted UK distributor for many of the world’s leading automation manufacturers, we provide industrial control products, technical expertise and bespoke automation solutions backed by outstanding customer service.
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...