Finder 12.91.8.230.0090 is a 230 V AC astronomical daily and weekly time switch with one 16 A SPDT changeover contact, 30 memory locations, sunrise and sunset programming, six-year power reserve and PC programming capability.
£176.88
The Finder 12.91.8.230.0090 is an advanced electronic astronomical daily and weekly 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, it combines conventional time programming with astronomical control for applications where switching needs to follow changing daylight hours throughout the year.
This single-channel time switch provides 1 CO (SPDT) changeover contact and incorporates astronomical data for sunrise and sunset operation. The 12.91.8.230.0090 is the special version designed for PC programming using the Finder 012.90 programming kit and Key Memory, allowing programmes to be created on a computer and transferred to the time switch.
With a 230 V AC supply, a 16 A contact rating at 250 V AC and 30 memory locations, the 12.91.8.230.0090 provides flexible automatic control for lighting and other electrical installations. Its 35.8 mm DIN rail format, six-year power reserve and automatic summer/winter time adjustment support dependable operation in electrical distribution boards and control panels.
Astronomical time switches such as the Finder 12.91.8.230.0090 provide automatic switching based on sunrise and sunset as well as conventional daily and weekly programmes. This enables lighting and other electrical loads to follow seasonal changes in daylight without requiring continual manual adjustment of fixed switching times.
The 12.91.8.230.0090 adds PC programming capability through the Finder 012.90 programming kit and Key Memory, allowing schedules to be prepared on a computer and transferred to the time switch. Its 30 memory locations, automatic summer/winter adjustment and six-year power reserve provide flexible and dependable control for professional electrical installations.
| Manufacturer | Finder |
|---|---|
| Series | 12 Series |
| Model | 12.91.8.230.0090 |
| Product type | Electronic astronomical daily / weekly time switch |
| Number of channels | 1 |
| Contact configuration | 1 CO (SPDT) |
| Rated contact current | 16 A |
| Rated contact voltage | 250 V AC |
| Rated load AC1 | 4000 VA |
| Rated load AC15 | 750 VA |
| Incandescent / halogen lamp load | 2000 W |
| Energy-saving lamp load | 400 W |
| LED lamp load at 230 V AC | 400 W |
| Fluorescent lamp load with electronic ballast | 1000 W |
| Fluorescent lamp load with conventional ballast | 750 W |
| Contact material | AgSnO2 |
| Supply voltage | 230 V AC |
| Programming type | Astronomical / daily / weekly |
| Memory locations | 30 |
| Power reserve | 6 years |
| Automatic summer/winter time adjustment | Yes |
| PC programming | Finder 012.90 programming kit with Key Memory |
| Electrical connection | Screw terminals |
| Mounting type | 35 mm DIN rail |
| Width | 35.8 mm |
The Finder 12.91.8.230.0090 is an astronomical daily and weekly time switch used to automatically control electrical loads according to programmed schedules and sunrise and sunset times.
The 12.91.8.230.0090 operates from a 230 V AC supply.
The time switch provides 1 CO (SPDT) changeover contact rated at 16 A and 250 V AC.
Yes. This special version supports PC programming using the Finder 012.90 programming kit and Key Memory, allowing programmes to be created on a computer and transferred to the time switch.
The time switch provides 30 memory locations and has a six-year power reserve after first operation.
Finder 12 Series astronomical time switches provide dependable automatic control for lighting and electrical equipment, combining daily and weekly scheduling with sunrise and sunset operation, PC programming and robust DIN rail installation.{ "@context": "https://schema.org/", "@type": "Product", "name": "Finder 12.91.8.230.0090 Astronomical Daily and Weekly Time Switch 16 A 230 V AC", "sku": "12.91.8.230.0090", "mpn": "12.91.8.230.0090", "brand": { "@type": "Brand", "name": "Finder" }, "category": "Astronomical Time Switches", "description": "Finder 12.91.8.230.0090 is a 230 V AC astronomical daily and weekly time switch with one 16 A SPDT changeover contact, 30 memory locations, sunrise and sunset programming, six-year power reserve and PC programming capability.", "additionalProperty": [ { "@type": "PropertyValue", "name": "Supply voltage", "value": "230 V AC" }, { "@type": "PropertyValue", "name": "Contact configuration", "value": "1 CO (SPDT)" }, { "@type": "PropertyValue", "name": "Rated contact current", "value": "16 A at 250 V AC" }, { "@type": "PropertyValue", "name": "Memory locations", "value": "30" }, { "@type": "PropertyValue", "name": "Power reserve", "value": "6 years" } ] } { "@context": "https://schema.org", "@type": "FAQPage", "inLanguage": "en-GB", "mainEntity": [ { "@type": "Question", "name": "What is the Finder 12.91.8.230.0090 used for?", "acceptedAnswer": { "@type": "Answer", "text": "The Finder 12.91.8.230.0090 is an astronomical daily and weekly time switch used to automatically control electrical loads according to programmed schedules and sunrise and sunset times." } }, { "@type": "Question", "name": "What supply voltage does the Finder 12.91.8.230.0090 require?", "acceptedAnswer": { "@type": "Answer", "text": "The 12.91.8.230.0090 operates from a 230 V AC supply." } }, { "@type": "Question", "name": "What is the contact rating of the Finder 12.91.8.230.0090?", "acceptedAnswer": { "@type": "Answer", "text": "The time switch provides 1 CO (SPDT) changeover contact rated at 16 A and 250 V AC." } }, { "@type": "Question", "name": "Can the Finder 12.91.8.230.0090 be programmed using a PC?", "acceptedAnswer": { "@type": "Answer", "text": "Yes. This special version supports PC programming using the Finder 012.90 programming kit and Key Memory, allowing programmes to be created on a computer and transferred to the time switch." } }, { "@type": "Question", "name": "How many memory locations does the Finder 12.91.8.230.0090 have?", "acceptedAnswer": { "@type": "Answer", "text": "The time switch provides 30 memory locations and has a six-year power reserve after first operation." } } ] }
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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...