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20.28.8.012.4000 Finder step relay 2 phase switch 2NO 12V
Finder 20.28.8.012.4000 digital programmable time switch with 12 V AC/DC supply, two changeover outputs and weekly scheduling for automatic electrical control.
Why Choose the Finder 20.28.8.012.4000 Digital Time Switch?
The Finder 20.28.8.012.4000 is a compact and reliable digital programmable time switch designed for automatic control of electrical loads in residential, commercial and industrial installations. As part of the trusted Finder 20 Series digital time switch range, it provides accurate scheduling control for lighting, heating, irrigation and building automation applications.
This programmable timer combines a clear digital display, flexible weekly scheduling and battery-backed memory to provide dependable automatic switching. Its modular design allows straightforward installation on standard 35 mm DIN rails, making it suitable for electrical distribution boards and control panels.
With a 12 V AC/DC supply voltage, 2 changeover contacts and a 16 A switching capacity, the Finder 20.28.8.012.4000 provides reliable time-based control for multiple electrical loads where precise automation is required.
Key Advantages
- Compact digital programmable time switch for DIN rail mounting.
- Two independent changeover outputs for flexible load control.
- 12 V AC/DC supply voltage for low-voltage control systems.
- Weekly programming capability for automatic scheduling.
- Battery-backed memory maintains settings during power interruptions.
- Suitable for lighting, automation and energy management applications.
Key Features
- Finder 20 Series digital time switch.
- 2 changeover (CO/SPDT) relay contacts.
- 12 V AC/DC supply voltage.
- 16 A switching capacity.
- Weekly programming function.
- Digital LCD display for programming and status indication.
- Manual override function.
- Automatic daylight saving time adjustment.
- DIN rail mounting design.
Reliable Automatic Switching Control
Digital time switches such as the Finder 20.28.8.012.4000 provide accurate scheduling of electrical loads, helping improve energy efficiency by ensuring equipment operates only according to programmed requirements.
The Finder 20 Series combines compact modular construction, reliable relay switching and intuitive programming functions to deliver dependable automation control for modern electrical systems.
Typical Applications
- Lighting automation systems.
- Commercial building control.
- Heating and ventilation scheduling.
- Irrigation and water management systems.
- Electrical distribution boards.
- Industrial automation panels.
Technical Specifications
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| Device Type | Latching / Impulse Relay | |
|---|---|---|
| Switching Current (A) | 16 A | |
| Mounting Type | DIN rail | |
| Coil / Supply Voltage | 12 V AC, 12 V DC | |
| Contacts | 2 C/O | |
| IP Rating | IP20 | |
| Manufacturer | Finder | |
| Series | 20 Series Digital Time Switches | |
| Model | 20.28.8.012.4000 | |
| Product type | Digital programmable time switch | |
| Supply voltage | 12 V AC/DC | |
| Contact configuration | 2 CO (DPDT) | |
| Rated current | 16 A | |
| Programming | Weekly | |
| Mounting type | 35 mm DIN rail mounting | |
| Display type | LCD digital display | |
| Backup | Internal rechargeable battery | |
| Protection rating | IP20 | |
| Module width | 35.8 mm |
Frequently Asked Questions
What is the Finder 20.28.8.012.4000 used for?
The Finder 20.28.8.012.4000 is a digital programmable time switch used for automatic control of lighting, heating and other electrical loads.
What supply voltage does this Finder time switch require?
The unit operates from a 12 V AC/DC supply.
How many output contacts does the Finder 20.28.8.012.4000 provide?
The time switch provides two changeover relay outputs for flexible control of connected loads.
Can this time switch be installed on a DIN rail?
Yes, the Finder 20.28.8.012.4000 is designed for standard 35 mm DIN rail mounting.
Does the timer retain programmed settings during a power interruption?
Yes, the unit includes battery-backed memory to maintain programmed schedules.
Trusted by Electrical Installers Worldwide
Finder programmable time switches provide reliable scheduling control, compact installation and efficient automation for residential, commercial and industrial electrical systems.
