Valeo THERMO E+ 120 Einbauanweisung Seite 50

Electrical connections
10.2.1. Cable cross sections control cables
(Connector C, Pin A,B,C,D)
For vehicle cable lengths up to 7.5 m, at least the prescribed cable
cross-sections in Fig. 9 shall be used. For vehicle lengths of 7.5 m to 15
m, the cable cross-sections in the vehicle must be designed larger. At
least the cable cross-sections given in the table must be used. Please
note that the cable cross-section at the heater must not exceed 1 mm².
In the case of larger cable lengths, a cross-section reduction must be
carried out before the heater. The generally valid electrotechnical rules
apply.
Cable length <7.5m Cable length 7.5 - 15m
0.75 mm² 1.5 mm² (Attention, at the contact max. 1mm²)
10.2.2. Cable cross sections power supply cables
(Connector C, Pin E and G)
Please ensure that the voltage drop (forward plus backward) is less than
1V. Smaler voltage drop is better (see following tables). The maximum
cable cross section to the heater connector (Pos. E and G) is 5mm². If a
greater cable cross section is required, it is to be reduced shortly before
the heater.
46
Table 1: Voltage drop (forward plus backward) at 12V, up to 85°C
ambient temperature (without consideration of further crossing resistors,
aging, dirtiness)
In=20A 3m 4m
4mm² permitted** permitted**
5mm² permitted** permitted**
for larger cable cross-sections a reduction before the connector is required
6mm² permitted** permitted**
10mm² permitted** permitted**
Table 2: Voltage drop (forward plus backward) at 24V, up to 85°C
ambient temperature (without consideration of further crossing resistors,
aging, dirtiness)
In=15A 3m 4m
not
2.5 mm² permitted*
permitted
4mm² permitted** permitted** permitted** permitted**
5mm² permitted** permitted** permitted** permitted** permitted**
for larger cable cross-sections a reduction before the connector is required
6mm² permitted** permitted** permitted** permitted** permitted**
* connector package 2.5mm² (Connector C), 11123483_
** connector package 3-5mm² (Connector C), 11126246_
Thermo E+ 120/200/320
5m 6m 7m
not not not
permitted permitted permitted
not not
permitted**
permitted permitted
not
permitted** permitted**
permitted
permitted** permitted** permitted**
5m 6m 7m
not not not
permitted permitted permitted
not
permitted