Manual EM-box 3
Hardware 3.1 - REV 3B - JAN 20
Page 11
Important
: For all unused outputs, the nut must be tightened so that no error
message is displayed by the control LEDs (6a-8a) or the PSM system monitor
due to a supposed fuse failure.
If two different cable cross-sections are clamped to one bolt, a branch bolt
holder ABH1 with fuse as shown in Figure 3.2 must be used in addition, to fuse
the smaller cross-section according to its cable cross-section.
(1)
IN Battery charger (max. 150A)
The required cable cross section must be dimensioned according to the maximum charging current of the
battery charger.
(2)
IN alternator (max. 150A)
No fuse protection required for alternator connection,
required cable cross section (according to ISO 10133):
Alternators up to 60 A: min. 16 mm²,
Alternators up to 90 A: min. 25 mm²,
Alternators up to 120 A: min. 35 mm²,
Alternators up to 150 A: min. 50 mm²,
For cable lengths greater than 2 m, the next higher cross-section must be selected.
(3)
IN Starter-Battery
The required cable cross section must be dimensioned according to the motor manufacturer's specifications.
For correct dimensioning the total length of the cable from starter battery to EM-box and from EM-box to starter
motor must be taken into account.
(4)
OUT Starter-Engine
The required cable cross section must be dimensioned according to the motor manufacturer's specifications.
For correct dimensioning the total length of the cable from starter battery to EM-box and from EM-box to starter
motor must be taken into account.
(5)
IN house battery (to be fused at battery positive pole!)
The required cable cross section and the fuse at the positive pole of the service battery(ies) depends on the
maximum charging current of the charging sources (generator, charger...) and on the sum of the consumer
currents. The larger value in each case is to be used for dimensioning.
Max. Charging/consumer currents up to 60 A: min. 16 mm²,
Max. Charge/consumer currents up to 120 A: min. 35 mm²,
Max. Charge/consumer currents up to 200 A: min. 50 mm²,
Max. Charge/consumer currents up to 250 A: min. 70 mm² (or 2 x 50 mm²),
on the battery max. charging/consuming currents up to 250 A: min. 70 mm² (or 2 x 50 mm²),
No more than the maximum continuous current of 250 A should be carried via the EM box.
(6)
OUT 1 (distribution panel), (fuse with bolt fuse SHB)
The required cable cross section and the fuse value depend on the maximum current of the connected loads.
Continuous load max. 150 A.
(7)
OUT 2 (Inverter), (fuse with bolt fuse SHB)
The required cable cross section and the fuse value depend on the maximum current of the connected loads.
Continuous load max. 150 A.
(8)
OUT Bow-Battery, (fuse with bolt fuse SHB)
The required cable cross section and fuse rating depends on the maximum charging current of the connected
alternator (1), min. 50 mm² and max. 150 A.
Figure 3.2: installation of double bolt
fuse