Centinel System – Repair Manual – 018-021   Electrical System

Table of Contents

Specifications

Specifications

TOC

Minimum Recommended Battery Capacity:

System
Voltage
  Ambient Temperatures
      -18°C [0°F]
      Cold
Cranking
Amperes
 
Reserve
Capacity*
Amperes
 
12 VDC      
  Automotive and Power Generation 1800 540
  Industrial 2700 360
24 VDC**      
  Automotive and Power Generation 900 270
  Industrial 1350 360

* The number of plates within a given battery size determines reserve capacity. Reserve capacity determines the length of time that sustained cranking can occur.

**CCA ratings are based on two 12-VDC batteries in series.

A minimum of 6 VDC at the OEM connector is required to power up the ECM.

Minimum Battery Capacity:

12-VDC Starter 400 ampere-hours to 1800 cold cranking amps @ -18°C [0°F]
24-VDC Starter 200 ampere-hours to 900 cold cranking amps @ -18°C [0°F]

Maximum Starting Circuit Resistance:

12-VDC Starter 0.00075 ohm
24-VDC Starter 0.00200 ohm

Battery Cable Sizes – American Wire Gauge (maximum length in cranking motor circuit):

12-VDC:

No. 00 3.7 m [12 ft]
No. 000 4.9 m [16 ft]
No. 0000 or Two No. 0* 6.1 m [20 ft]
Two No. 00 7.6 m [25 ft]

Battery Cable Sizes – American Wire Gauge (maximum length in cranking motor circuit):

12-VDC High Output:

No. 00 2.1 m [7 ft]
No. 000 2.7 m [9 ft]
No. 0000 or Two No. 0* 3.7 m [12 ft]
Two No. 00 4.3 m [14 ft]

Battery Cable Sizes – American Wire Gauge (maximum length in cranking motor circuit):

24 to 32 VDC:

No. 00 6.1 m [20 ft]
No. 000 8.2 m [27 ft]
No. 0000 or Two No. 0* 10.7 m [35 ft]
Two No. 00 13.7 m [45 ft]
Minimum Ambient Air Temperature without Starting Aid -1°C [30°F]
Minimum Cranking Speed without Starting Aid 130 rpm

* Two strands of No. 0 cable can be used in place of one No. 0000 cable, provided that connections are carefully made to make sure equal current flow exists in each parallel cable.

Last Modified:  25-May-2007