Detroit Diesel MBE 4000 DDEC VI Troubleshooting Manual page 188

17.3 COMMON POWERTRAIN CONTROLLER
To avoid injury from fire, do not replace an existing fuse
with a larger amperage fuse.
may overheat the wiring, causing the insulation and
surrounding materials to burn.
The ignition fuse current rating must be sized for the loads utilized in each application; however,
a rating of between 5 and 10 amps is usually sufficient.
The Battery (+) fuse current rating must satisfy two criteria:
□ Must not open during normal operation
□ Must open before the MCM or CPC is damaged during a reverse battery condition
Bussmann ATC-30 and Delphi Packard Electric Systems MaxiFuse 30 amp rated fuses or
equivalent will satisfy these requirements. Acceptable blow times versus current and temperature
derating characteristics are listed in Table 17-13 and Table 17-14.
% of Rated Fuse Current
100%
135%
200%
Table 17-13 Fuse Current and Blow Time
Temperature
-40°C
+25°C
+120°C
Table 17-14 Fuse Temperature and Current
17.3.5 Connectors
There are three 18–pin connectors and one 21–pin connector to the CPC. The OEM is responsible
for the four connectors at the CPC, the 21–pin connector at the MCM, the 31–pin MCM pigtail
connector and the 10–pin DPF connector.
NOTE:
The CPC connectors are not water tight and cannot be subject to water spray.
17-26
FIRE
The increased current
Minimum Blow Time
100 hours
1 minutes
6 seconds
% of Rated Fuse Current
6SE568 Copyright © PRELIMINARY 2007 DETROIT DIESEL CORPORATION
Maximum Blow Time
—
30 minute
40 seconds
110% max
100%
80% min
(Rev. ) All information subject to change without notice.