Relay Guide | Essential Towbar Fitting Checklist

How many Trailer Sockets? How long should the cable be?
	How long should the cable be? (e.g. Transits require 2m.)	1.6m	2.0m
Will you fit	Single Socket	TF120	TF120A
Will you fit	Double Sockets	TF122	TF122A
Which Flasher Monitor?
Will you fit a Boot Fitted Audible Monitor?	A standard rear audible monitor		TF1152
	One with bypass ability		TF110R*
	One with bypass ability on ALL the road lamps (inc. flashers)		TF2217 or TF2217U
Will you fit a Front Fitted Audible or Visible monitor?	A plug in easy fit Monitor Clone		TF2100T*
	A plug in easy fit Monitor Midwife		TF2001*
	A wire in type? Audible		TF2005
	A wire in type? Visible (LED)		TF111
Do you need a Bypass Relay? If you do, which one is best?
Choose from single, three lamp, four lamp or seven-way.			See Bypass Relays
Will you fit a Caravan Relay?
To switch the fridge and battery together?	A Self- switching Combination relay ? Screw Type		TF1170 or TF1170X
	An altenator-switched Combination relay ? Pin type		TF116
	An altenator-switched Combination relay ? Screw Type		TF1171
To switch just the fridge or just the battery?	A single switching relay (30 amp) with self-switching trigger?		TF1169 TF1161+
To switch just the fridge or just the battery?	A single switching relay (30 amp) with alternator switch feed?		TF1161