1. Introduction
The Legrand 412641 Digital Programmable Time Switch is designed to automate the switching on and off of electrical circuits, such as lighting or heating systems, at pre-selected times. This device offers both daily and weekly programming capabilities, ensuring precise control over your electrical installations. It features automatic time adjustments for daylight saving and a robust power reserve to maintain settings during power outages.
2. Safety Instructions
Please read these safety instructions carefully before installation and operation to prevent personal injury or damage to the device.
- Installation and maintenance must be performed by a qualified electrician in accordance with local electrical codes and regulations.
- Ensure the main power supply is disconnected before performing any installation, wiring, or maintenance work.
- Do not expose the device to moisture, extreme temperatures, or corrosive environments.
- Verify that the voltage and current ratings of the device match your electrical system requirements.
- Do not attempt to open or repair the device yourself. Refer to qualified service personnel.
3. Product Overview
The Legrand 412641 is a modular digital time switch designed for DIN rail mounting. It features a clear display and intuitive buttons for programming.
Figure 1: Front view of the Legrand 412641 Digital Time Switch. This image shows the device's compact design, the main display, and the control buttons beneath a protective clear cover.
Figure 2: Front view of the Legrand 412641 with the transparent cover open, revealing the LCD screen and the programming buttons (C1, C2, +, OK, and a battery icon button).
Components:
- LCD Display: Shows current time, date, day of the week, and programming information.
- Control Buttons: Used for navigation, setting parameters, and confirming selections (e.g., C1, C2, +, OK).
- Terminal Blocks: For connecting power supply (L, N) and output circuits (1, 2).
- DIN Rail Clip: Located at the bottom rear for secure mounting.
- Battery Compartment: Accessible from the front for easy battery replacement.
4. Installation
4.1 Mounting
The Legrand 412641 is designed for mounting on a standard DIN rail (35 mm).
- Ensure the main power supply is switched off at the circuit breaker.
- Position the device on the DIN rail.
- Press the bottom clip of the device onto the rail until it clicks into place, securing the unit.
Figure 3: Rear and side view of the Legrand 412641, showing the DIN rail mounting mechanism and product labeling including the International Article Code 3245064126410.
4.2 Wiring
Connect the time switch to the electrical circuit as follows:
Figure 4: Side view of the Legrand 412641, illustrating the terminal block connections for power input (L, N) and the two independent outputs (1, 2).
- Connect the phase (Live) wire to the 'L' terminal.
- Connect the neutral wire to the 'N' terminal.
- Connect the load for the first output to terminal '1'.
- Connect the load for the second output to terminal '2'.
- Ensure all connections are secure and properly insulated.
Note: The device has two independent outputs, each rated at 16A 250V.
5. Initial Setup
After successful installation and power-up, follow these steps for initial configuration:
- Power On: Restore power to the circuit. The display should illuminate.
- Language Selection: The device will prompt you to select a language. Use the '+' and '-' buttons to scroll through the 15 available languages and press 'OK' to confirm your choice.
- Time and Date Setting: The device may automatically set the time and date. If not, or if adjustment is needed, navigate to the 'Settings' menu (refer to the on-screen prompts or full manual for specific button sequences). Use '+' and '-' to adjust values (year, month, day, hour, minute) and 'OK' to confirm each setting.
- Daylight Saving Time: The device supports automatic summer/winter time changes. Ensure this feature is enabled in the settings if desired.
6. Operating Instructions
The Legrand 412641 allows for flexible programming of your electrical circuits.
6.1 Programming Modes
The time switch supports two main programming modes:
- Daily Programming: Programs repeat every day.
- Weekly Programming: Programs can be set for specific days of the week or combinations of days.
6.2 Creating a Program
To create a new program (up to 56 possible programs):
- Access the 'Program' menu from the main screen.
- Select an empty program slot or an existing one to modify.
- Set the desired 'ON' time (hour and minute) using the '+' and '-' buttons and 'OK' to confirm.
- Set the desired 'OFF' time (hour and minute).
- Choose the days of the week for which this program should be active (e.g., Mon-Fri, Sat-Sun, or specific days).
- Confirm and save the program.
6.3 Program Overrides
The device offers options to temporarily or permanently override active programs:
- Temporary Override (Automatic Return): Allows you to manually switch an output ON or OFF. The device will automatically revert to the programmed schedule at the next scheduled event.
- Permanent Override (Forced ON/OFF): Manually forces an output to remain ON or OFF indefinitely, ignoring all programmed events until manually cancelled.
- Program Interruption by Date: You can set a specific date range during which a program will be inactive.
6.4 Special Functions
- Random Mode: Activates outputs at irregular intervals, useful for simulating presence (e.g., for security lighting).
- Hour Counters: Tracks the total operating hours of connected loads.
7. Maintenance
7.1 Battery Replacement
The time switch is equipped with a battery that provides a 5-year power reserve to maintain settings during power outages. The battery is accessible from the front for easy replacement.
- Ensure the main power supply to the device is disconnected.
- Carefully open the front cover of the device.
- Locate the battery compartment and remove the old battery.
- Insert a new, compatible battery, ensuring correct polarity.
- Close the front cover securely.
7.2 Cleaning
Clean the device with a soft, dry cloth. Do not use abrasive cleaners, solvents, or liquids, as these can damage the unit.
8. Troubleshooting
If you encounter issues with your Legrand 412641 time switch, refer to the table below for common problems and solutions.
| Problem | Possible Cause | Solution |
|---|---|---|
| Display is blank | No power supply or depleted battery. | Check power connections. Replace battery if necessary. |
| Programs not executing | Incorrect time/date setting, program disabled, or permanent override active. | Verify time/date. Check program status. Deactivate permanent override. |
| Output not switching | Wiring error, faulty load, or device malfunction. | Check wiring connections. Test the connected load. If problem persists, contact support. |
| Inaccurate time | Internal clock drift (unlikely due to high precision) or incorrect initial setting. | Reset and re-synchronize time. If persistent, contact support. |
9. Technical Specifications
- Model Number: 412641
- Power Supply: 230 V - 50/60 Hz
- Outputs: 2 independent outputs, 16 A - 250 V each
- Modular Size: 2 modules (17.5 mm per module)
- Programming Capacity: Up to 56 programs
- Programming Modes: Daily or Weekly
- Minimum Programming Interval: 1 second
- Clock Precision: + 0.1 seconds/day
- Power Reserve: 5 years (via internal battery)
- Display Size: 8.51 cm
- Dimensions (D x W x H): Approximately 5.5 x 10 x 8.5 cm
- Weight: 180 g
- Operating Temperature: -20°C to +55°C
- Country of Origin: Spain
- International Article Code (EAN/UPC): 03245064126410
10. Warranty and Support
Legrand products are manufactured to high-quality standards and are covered by a manufacturer's warranty. For specific warranty terms, technical support, or service inquiries, please refer to the documentation provided with your purchase or visit the official Legrand website. Always provide your model number (412641) when contacting support.
