12.A1.8.230.0000 Finder Time switch Astro 1pole 16A 110/230V
Finder 12.A1.8.230.0000 is a 110–230 V AC/DC single-channel weekly astronomical digital time switch with a 16 A SPDT output, sunrise and sunset control, pulse and holiday functions, NFC programming and DIN rail mounting.
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Why Choose the Finder 12.A1.8.230.0000 SMARTimer Astronomical Time Switch?
The Finder 12.A1.8.230.0000 is an advanced single-channel weekly astronomical digital time switch designed for automatic control of electrical loads according to programmed schedules and calculated sunrise and sunset times. As part of the Finder 12 Series SMARTimer range, it combines conventional weekly time programming with astronomical functions for lighting, building services and other applications that need to follow seasonal changes in daylight.
This programmable time switch provides a SPDT changeover output and supports ON/OFF, pulse, Astro ON and Astro OFF functions. Sunrise and sunset times are calculated according to geographical location, while an astronomical offset allows switching to be advanced or delayed around the calculated times for greater control flexibility.
With a 110–230 V AC/DC supply and a 16 A output rating at 250 V AC, the 12.A1.8.230.0000 is suitable for a wide range of control installations. NFC functionality enables convenient smartphone programming, while its LCD display, screw terminals and DIN rail mounting provide straightforward configuration and installation inside electrical distribution boards and control panels.
Key Advantages
Advanced weekly astronomical digital time switch for automatic electrical load control.
Calculates sunrise and sunset times according to geographical location.
SPDT output rated at 16 A and 250 V AC for versatile switching applications.
110–230 V AC/DC supply provides flexibility across control installations.
NFC functionality enables convenient programming using compatible smartphones.
ON/OFF, pulse, Astro ON, Astro OFF and holiday functions provide flexible scheduled control.
Key Features
Finder 12 Series SMARTimer.
Weekly astronomical programming.
Single-channel SPDT changeover output.
16 A at 250 V AC output rating.
110–230 V AC/DC supply voltage.
Automatic calculation of sunrise and sunset times.
Astro ON and Astro OFF functions.
ON/OFF and pulse switching functions.
Pulse duration from 1 second to 59 minutes.
Holiday programme for scheduled periods of alternative operation.
Astronomical offset adjustable by up to 90 minutes in 1 minute steps.
NFC programming using compatible smartphones.
Integrated LCD display.
DIN rail mounting with screw-terminal connections.
Reliable Astronomical Time Control for Lighting and Electrical Installations
Astronomical time switches such as the Finder 12.A1.8.230.0000 calculate sunrise and sunset according to geographical location, allowing connected equipment to follow seasonal changes in daylight automatically. This makes astronomical switching particularly useful for outdoor lighting and other applications where fixed switching times would otherwise require regular adjustment throughout the year.
The Finder 12.A1 combines astronomical operation with conventional weekly ON/OFF programming, pulse control and a holiday programme. Its adjustable astronomical offset enables switching to occur before or after calculated sunrise and sunset, while NFC functionality simplifies configuration and programme management using a compatible smartphone.
Typical Applications
Street and municipal lighting control.
Car park and external area lighting.
Garden and landscape lighting.
Illuminated signs and shop displays.
Building exterior lighting systems.
Electrical loads requiring weekly or sunrise and sunset-based switching.
Technical Specifications
Manufacturer
Finder
Series
12 Series SMARTimer
Model
12.A1.8.230.0000
Product type
Weekly astronomical digital time switch
Number of channels
1
Contact configuration
SPDT
Output rating
16 A at 250 V AC
Supply voltage
110–230 V AC/DC
Programming type
Weekly / astronomical
Functions
ON/OFF, pulse, Astro ON, Astro OFF, holiday programme
Pulse duration
1 second to 59 minutes
Astronomical offset
Up to ±90 minutes in 1 minute steps
Display
LCD
Programming interface
NFC
Operating temperature
-20 to +50 °C
Protection rating
IP20
Electrical connection
Screw terminals
Mounting type
DIN rail mounting
Frequently Asked Questions
What is the Finder 12.A1.8.230.0000 used for?
The Finder 12.A1.8.230.0000 is a weekly astronomical digital time switch used to control electrical loads according to programmed schedules and calculated sunrise and sunset times.
What supply voltage does the Finder 12.A1.8.230.0000 require?
The 12.A1.8.230.0000 operates from a 110–230 V AC/DC supply.
What is the output rating of the Finder 12.A1.8.230.0000?
The time switch provides an SPDT changeover output rated at 16 A and 250 V AC.
What astronomical functions does the Finder 12.A1.8.230.0000 provide?
The time switch provides Astro ON and Astro OFF functions based on calculated sunrise and sunset times, with an offset of up to 90 minutes before or after the astronomical event in 1 minute steps.
Can the Finder 12.A1.8.230.0000 be programmed using a smartphone?
Yes. The 12.A1.8.230.0000 includes NFC functionality for convenient programming using a compatible smartphone.
Trusted Astronomical Time Control from Finder
Finder 12 Series SMARTimer astronomical time switches provide dependable automatic control for lighting and electrical equipment, combining weekly scheduling with sunrise and sunset calculation, flexible switching functions and convenient NFC programming.
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Manufacturer
Finder
Series
12 Series SMARTimer
Model
12.A1.8.230.0000
Product type
Weekly astronomical digital time switch
Number of channels
1
Contact configuration
SPDT
Output rating
16 A at 250 V AC
Supply voltage
110–230 V AC/DC
Programming type
Weekly / astronomical
Functions
ON/OFF, pulse, Astro ON, Astro OFF, holiday programme
Pulse duration
1 second to 59 minutes
Astronomical offset
Up to ±90 minutes in 1 minute steps
Display
LCD
Programming interface
NFC
Operating temperature
-20 to +50 °C
Protection rating
IP20
Electrical connection
Screw terminals
Mounting type
DIN rail mounting
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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...