1. Introduction
This manual provides detailed instructions for the installation, operation, and maintenance of the Theben SELEKTA 170 top2 digital time switch. This device features an astronomical and weekly program, text-oriented programming, and a single channel with 56 memory locations, designed for DIN rail mounting.
2. Product Overview
The Theben SELEKTA 170 top2 is a versatile digital time switch designed for precise control of electrical circuits. Its key features include:
- DIN Mounting: Designed for easy installation on a DIN rail.
- Text-Oriented User Guidance: Intuitive display for straightforward programming.
- 1 Channel: Controls a single electrical circuit.
- DuoFix Spring Terminals: For secure and quick wiring connections.
- 56 Memory Locations: Ample capacity for various switching programs.
- Astronomical Program: Automatic switching based on sunrise and sunset times.
- Weekly Program: Customizable switching schedules for each day of the week.
Figure 1: Front view of the Theben SELEKTA 170 top2 digital time switch, showing the display, control buttons, and wiring terminals.
3. Safety Instructions
Please read these safety instructions carefully before installation and operation. Failure to comply may result in electric shock, fire, or damage to the device.
- Installation and maintenance must only be performed by a qualified electrician.
- Disconnect power supply before working on the device or its connections.
- Ensure proper grounding according to local electrical codes.
- Do not expose the device to moisture, extreme temperatures, or corrosive environments.
- Verify correct voltage and frequency before connecting the device (230-240V~, 50-60Hz).
4. Installation
4.1 DIN Rail Mounting
The SELEKTA 170 top2 is designed for quick and secure mounting on a standard DIN rail. Simply clip the device onto the rail until it locks into place.
4.2 Wiring Connections
Use DuoFix spring terminals for wiring. Ensure wires are stripped to the correct length (approximately 8mm) and have a cross-section between 0.5mm² and 2.5mm².
- Power Supply (L, N): Connect the live (L) and neutral (N) wires to the corresponding terminals at the top of the device. The device operates on 230-240V~, 50-60Hz.
- Output (1, 2, 3): The output terminals are rated for 16(10)A at 250V~.
- Terminal 1: Common
- Terminal 2: Normally Closed (NC)
- Terminal 3: Normally Open (NO)
Figure 2: Detailed view of the wiring terminals. Top terminals for power input (L, N) and bottom terminals for output (1, 2, 3). Note the recommended wire stripping length of 8mm and wire cross-section of 0.5mm² to 2.5mm².
5. Operating Instructions
5.1 Display and Buttons
The device features a text-oriented display and four control buttons for navigation and programming.
Figure 3: Close-up of the display showing time, location ("LONDON"), and status ("On"). The control buttons are labeled MENU, two arrow buttons (left/right), and OK.
- MENU Button: Accesses the main menu for programming and settings.
- Arrow Buttons (◄ / ►): Navigate through menu options, adjust values, or scroll through programs.
- OK Button: Confirms selections or saves settings.
5.2 Initial Setup (Time and Date)
- Press the MENU button.
- Use the arrow buttons to navigate to "Settings" or "Time/Date".
- Press OK to select.
- Adjust the current time, date, and year using the arrow buttons and confirm each setting with OK.
5.3 Programming Astronomical Function
The astronomical function automatically adjusts switching times based on sunrise and sunset for your location.
- Press the MENU button.
- Navigate to "Astronomical Program" or "Location".
- Press OK.
- Select your geographical location (e.g., "LONDON" as shown on the display) or enter coordinates if prompted.
- Confirm with OK.
- You can typically set offsets (e.g., switch 15 minutes before sunset) if desired.
5.4 Programming Weekly Schedule
Set specific ON/OFF times for each day of the week.
- Press the MENU button.
- Navigate to "Weekly Program" or "Switching Times".
- Press OK.
- Select the desired day(s) of the week.
- Enter the ON time using the arrow buttons and confirm with OK.
- Enter the OFF time using the arrow buttons and confirm with OK.
- Repeat for all desired switching events (up to 56 memory locations).
6. Maintenance
The Theben SELEKTA 170 top2 is designed for maintenance-free operation. Periodically check the device for:
- Accumulation of dust or debris. Clean with a soft, dry cloth if necessary.
- Loose wiring connections. Ensure all terminals are secure.
- Signs of physical damage or overheating.
Always disconnect power before performing any cleaning or inspection.
7. Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Display is blank | No power supply | Check power connections (L, N) and circuit breaker. |
| Device not switching | Incorrect program settings; Manual override active; Wiring issue | Verify program times; Check for manual override status; Inspect output wiring (1, 2, 3). |
| Time/Date incorrect | Not set correctly; Power interruption (internal battery backup should prevent this for short periods) | Re-enter time and date as per section 5.2. |
8. Specifications
- Model Number: SEL-170-TOP-2-12/24V
- Manufacturer: Theben
- Channels: 1
- Program Types: 7 Day / 24 Hours / Astronomical
- Memory Locations: 56
- Mounting: DIN Rail
- Operating Voltage: 230-240V~
- Frequency: 50-60Hz
- Output Rating: 16(10)A, 250V~ (R 10a - 30T)
- Wire Cross-Section: 0.5mm² - 2.5mm²
- Wire Stripping Length: 8mm
- Package Dimensions: 10 x 4.88 x 3.75 inches
- Weight: 8 ounces
9. Warranty and Support
For warranty information and technical support, please refer to the official Theben website or contact your local distributor. Keep your purchase receipt for warranty claims.
Manufacturer: Theben
