Description
Overview:
The 7 Way Bypass Relay with Audible Buzzer (model TEB7AS) is a compact lighting control module for towing electrics on cars, vans, 4x4s, and motorhomes that pull trailers or caravans. Housed in a durable black plastic enclosure, it isolates and switches seven lighting channels so the trailer or caravan lights operate correctly without adding extra electrical load to the tow vehicle's lighting circuits. It supports both filament bulbs and LED lamps, making it suitable for mixed lighting setups. An integrated buzzer provides an audible tell‐tale for the indicators and automatically mutes during hazard warning operation. Designed for flexible installation, the TEB7AS can be powered from the vehicle battery or fuse box and includes an ancillary output for monitoring flasher/indicator status.
Key Features:
- 7-way bypass design isolates the vehicle's lighting circuits from the trailer/caravan load
- Works with filament bulbs and LED lamps for wide compatibility
- Built-in audible buzzer to confirm indicator operation; mutes under hazard conditions
- Differentiates circuits on dual-voltage tail/brake and tail/fog systems for accurate control
- Helps prevent bulb-failure warnings by avoiding added load on CANbus-sensitive vehicles
- Ancillary flasher/indicator monitor output for tell‐tale or dashboard link
- Compact, robust plastic housing suitable for mounting inside the vehicle or luggage area
- Flexible power feed options from the battery or the vehicle's fuse box
- Clear, logical channel layout for straightforward wiring and fault finding
- Reliable solid-state switching for consistent operation and long service life
Typical Applications:
Used when fitting towbar electrics to operate trailer or caravan road lights while protecting the towing vehicle's wiring. Ideal for DIY towbar installations and professional workshops on vehicles with sensitive bulb monitoring. Suitable for mixed fleets where trailers use LEDs, filament bulbs, or combinations. Helps ensure safe signalling, tail, brake, and fog lighting when towing, with audible confirmation of indicator function.
Also known as:
Towbar bypass interface, 7‐pin lighting module, towing electrics controller, indicator tell‐tale module, universal towing light controller, CANbus-safe lighting interface, lighting isolation module for towing, indicator sounder unit.
Alternate Part Numbers:
TEB7AS
Product Specifications
| L&S Part No. | 761 427 |
|---|---|
| Unit of Sale | 1 |
| Machine Type | Trailers |
