www.hella.com

Voltage Transformers,
Trailer Connecting Units
Colour of lead:
1 grey
2 blue
3 black
4 brown
5 red
6 yellow
7 green
8 white
= Flasher light left
= Flasher light right
= Rear fog light
= Tail light left
= Tail light right
= Stop light
= Reversing light
Colour of lead:
24V Towing vehicle
ISO 12 098
1 yellow
2 green
3 blue
5 black
6 brown
7 red
8 grey
= Flasher light left
= Flasher light right
= Rear fog light
= Tail light left
= Tail light right
= Stop light
= Reversing light
1 yellow
2 blue
3 white
4 green
5 brown
6 red
7 black
8 grey
= Flasher light left
= Rear fog light
= Earth
= Flasher light right
= Tail light right
= Stop light
= Tail light left
= Reversing light
12V Trailer
ISO 11446 bzw. ISO 1724
1 yellow
2 blue
3 white
4 green
5 brown
6 red
7 black
8 grey
= Flasher light left
= Rear fog light
= Earth
= Flasher light right
= Tail light right
= Stop light
= Tail light left
= Reversing light
Voltage transformers,
trailer connecting units
Allows the use of 12V trailers on vehicles with 24V operating voltage.
The integrated voltage transformer makes operation
without a separate voltage transformer possible.
The trailer connecting unit has 7 channels for the trailer lamp function.
Failure of a 12V trailer flasher lamp is indicated by the series
warning light C2.
Known vehicle restrictions:
Mercedes Benz Atego MP2 series, DAF 75.360 CF.
Further vehicle applications between traction vehicle and trailer
must be checked before permanent installation using 24V connector
and 12V coupling;
particularly with traction vehicles that are equipped with a bulb
failure check.
Technical data:
Rated voltage: 24V/12V.
Capacity per switching channel: 2 x 21W.
Capacity per flasher lamp: 1 x 21W.
Operating temperature: -30 °C to +80 °C.
Polarity inversion protection: permanent protection.
Type of protection: IP5K9K acc. to DIN 50021-55.
Type approvals: e1 / CE.
Part no.
Pk.
5DS 008 125-011 1
5DS 008 125-001 1
Voltage transformer, trailer connecting unit,
24V/12V
Allows the use of 12V trailers on vehicles with 24V operating voltage.
The trailer connecting unit makes a separate voltage transformer
or a voltage converter with 8A 12V necessary.
The following units can be used for this purpose:
8ES 008 123-001, 8ES 008 124-001 or 8ES 006 658-021.
The trailer connecting unit has 7 channels for
the trailer lamp function.
Failure of a 12V trailer flasher lamp is indicated
by the series warning light.
Vehicle applications between traction vehicle and trailer
must be checked before permanent installation using 24V connector
and 12V coupling;
particularly with traction vehicles that are equipped with a bulb
failure check.
Technical data:
Rated voltage: 24V/12V.
Quiescent current: 8mA.
Steuerstrom der Schaltkanäle: 2,5mA.
Capacity per switching channel: 2 x 21W.
Capacity per flasher lamp: 21W.
Voltage drop along the switching channel: 200mV.
Operating temperature: -30 °C to +80 °C.
Polarity inversion: permanent protection.
Type of protection: IP5K9K acc. to DIN 50021-55.
Type approvals: e1 / CE.
Part no.
Pk.
Voltage transformer, trailer connecting unit,
24V/12V
1.38 EE 11