1. Introduction
The Greenbrook T80-C is a compact digital time switch designed for DIN rail mounting. It offers programmable control over electrical circuits, allowing for precise scheduling of connected devices. This manual provides essential information for the safe installation, operation, and maintenance of your T80-C time switch.
2. Safety Information
WARNING: Installation and wiring must be performed by a qualified electrician in accordance with all local and national electrical codes. Failure to follow these instructions may result in electric shock, fire, or serious injury.
- Always disconnect power at the main circuit breaker before installing or servicing the device.
- Ensure the device is protected from moisture and extreme temperatures.
- Do not exceed the maximum load ratings specified for the device.
- Verify all connections are secure before restoring power.
3. Product Overview
The Greenbrook T80-C is a compact digital timer designed for precise control. Key features include:
- 7-day or 24-hour programming capability.
- 16A resistive, 2A inductive 230V 50/60Hz, volt-free contact.
- Up to 6 ON and 6 OFF programs.
- 100-hour battery backup for program retention during power outages.
- Dimensions: H90 x W18 x D55mm (Single module).
Note: No product images or videos were provided in the input data. The following are illustrative examples of where images would be placed if available.
Figure 1: Front view of the T80-C Digital Time Switch, displaying the LCD screen and programming buttons.
Figure 2: Side view illustrating the DIN rail mounting mechanism of the T80-C.
4. Setup and Installation
4.1. DIN Rail Mounting
The T80-C is designed for standard 35mm DIN rail mounting. To install, hook the top edge of the device onto the DIN rail, then push the bottom edge firmly until it clicks into place. Ensure it is securely fastened.
4.2. Wiring
Before wiring, ensure the main power supply is disconnected. The T80-C features volt-free contacts, meaning the timer's internal circuit is isolated from the switched load circuit. This allows it to control various voltage loads within its specified limits.
- Identify the Live (L) and Neutral (N) terminals for the timer's power supply (230V 50/60Hz).
- Connect the incoming Live and Neutral wires to the corresponding terminals on the T80-C.
- Identify the Common (COM), Normally Open (NO), and Normally Closed (NC) terminals for the volt-free output.
- Connect the Live wire from your load circuit to the COM terminal.
- Connect the device you wish to control to either the NO (for switching ON when programmed) or NC (for switching OFF when programmed) terminal. The other side of your device should be connected to the Neutral of your load circuit.
- Ensure all terminal screws are tightened securely. The terminal screws are small; use an appropriate screwdriver (e.g., small Phillips or Pozi No. 1).
Figure 3: Typical wiring diagram for the T80-C, showing power input and volt-free output connections.
4.3. Initial Power-Up
After wiring, restore power. The display should illuminate. The internal battery backup provides 100 hours of power to maintain settings during power interruptions. If the display is blank or shows low battery, allow the unit to charge for a few hours after power restoration.
5. Operating Instructions
5.1. Setting Current Time and Day
Refer to the device's display and buttons (typically labeled 'Clock', 'Day', 'Hour', 'Min').
- Press the 'Clock' button (or similar) once. The display will show the current time setting.
- Use the 'Day', 'Hour', and 'Min' buttons to adjust the current day, hour, and minute respectively.
- Press 'Clock' again to save and exit, or wait a few seconds for it to automatically save.
5.2. Programming ON/OFF Times
The T80-C allows for up to 6 ON and 6 OFF programs. Each program can be set for specific days of the week or for all days.
- Press the 'Prog' button (or similar) repeatedly to cycle through program settings (1 ON, 1 OFF, 2 ON, 2 OFF, etc.).
- When '1 ON' is displayed, use the 'Day' button to select the desired day(s) for this program (e.g., Mon-Sun, Mon-Fri, Sat-Sun, individual days).
- Use the 'Hour' and 'Min' buttons to set the desired ON time.
- Press 'Prog' again to move to '1 OFF' and repeat the process to set the OFF time for the same program.
- Continue for all desired programs (up to 6 ON/OFF pairs).
- Press the 'Clock' button to exit programming mode and save settings.
5.3. Manual Override / Timer Toggle
Most digital timers include a manual override button (often labeled 'Manual', 'Override', or a hand icon) to temporarily switch the output ON or OFF, independent of the programmed schedule. Pressing this button typically cycles through modes like 'ON', 'OFF', and 'AUTO'. Select 'AUTO' for the timer to follow its programmed schedule.
6. Maintenance
6.1. Cleaning
Clean the exterior of the device with a soft, dry cloth. Do not use abrasive cleaners, solvents, or immerse the device in water.
6.2. Battery Backup
The T80-C has an internal rechargeable battery that provides up to 100 hours of backup for settings during power outages. This battery is typically not user-replaceable. If the display becomes consistently dim or loses settings frequently after power interruptions, the internal battery may be nearing the end of its life, and the unit may require replacement.
7. Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Display is blank. | No power supply; internal battery depleted. | Check power connections and circuit breaker. Allow unit to charge for several hours. |
| Programs are not activating. | Incorrect programming; manual override engaged; incorrect wiring. | Review programming steps. Ensure the timer is in 'AUTO' mode. Verify wiring connections. |
| Time/settings are lost after power outage. | Internal battery backup depleted or faulty. | Allow unit to charge. If problem persists, the unit may need replacement. |
| Device connected to timer does not switch. | Load circuit issue; incorrect wiring; timer faulty. | Check the connected device and its power supply. Verify timer output wiring. Test timer with a known working load. |
8. Specifications
- Model: T80-C
- Brand: Greenbrook
- Programming: 7-day or 24-hour
- Programs: 6 ON + 6 OFF
- Contact Type: Volt-free
- Load Rating: 16A resistive, 2A inductive
- Voltage: 230V 50/60Hz
- Battery Backup: 100 hours
- Dimensions (H x W x D): 90mm x 18mm x 55mm (3.54" x 0.71" x 2.17")
- Item Weight: 120 Grams (4.2 ounces)
- Number of Settings: 12 (referring to 6 ON/OFF pairs)
- Material: Not specified for external casing, but internal components may include 18/8 Stainless Steel as per product data.
- UPC: 787162860726
- ASIN: B0018S0TDQ
9. Warranty and Support
For warranty information and technical support, please refer to the documentation provided with your purchase or contact Greenbrook customer service directly. Contact details can typically be found on the manufacturer's official website or on the product packaging.
Note: No official product videos were provided in the input data. Therefore, no videos have been embedded in this manual.
