Relay Guide | Essential Towbar Electrics Fitting Checklist
| How many Trailer Sockets? How long should the cable be? | |||
|---|---|---|---|
| How long should the cable be?
(e.g. most fitters prefer 2m.) Other common lengths: 3m, 5m. |
1.6m | 2.0m | |
| Will you fit |
Single Socket plated unplated, with seal Single 12S unplated Double socket |
TF120 TF120UP TF121UP TF122 |
TF120A TF120AUP TF121AUP TF122A |
|
13-pin sockets |
. | TF1313PW | |
| Which Flasher Monitor or bypass relay? | |||
| You can monitor the flashers only or you can fit bypass relays on one, three, four or all seven trailer circuits |
A standard rear audible monitor or one with bypass ability on the flashers |
TF1152
TF110R* |
|
|
A one, three or four-way bypass |
See Bypass Relays | ||
|
One with bypass ability on ALL the road lamps (inc. flashers) |
TF2218/7 TF2218/7PIN |
||
| Will you fit a Caravan Relay? | |||
| To
switch the fridge and battery |
A Smart Combination relay ? |
TF1170-3 TF1170-4 |
|
| An altenator-switched Combination relay ? Pin type | TF116 | ||
| An altenator-switched Combination relay ? Screw Type | TF1171 | ||