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Specifications
70 975-0004-01-02 Rev D
Electrical Specifications
The following lists the electrical specifications for the
C-Series controllers Models C35, C40, and C60.
Table A-1
Electrical Specifications
Model C35 C40 C60
Voltage
Configuration
12 Vdc 24 Vdc 12 Vdc 24 Vdc 48 Vdc 12 Vdc 24 Vdc
Maximum PV
Array Open
Circuit Voltage
55 Vdc 55 Vdc 125 Vdc 125 Vdc 125 Vdc 55 Vdc 55 Vdc
Charging Load
Current
35 amps DC
continuous
40 amps DC continuous 60 amps DC
continuous
Recommended
Breaker Size with
recommended
Wire Size in
Conduit
60 amps DC
#6 AWG
60 amps DC
#6 AWG
60 amps DC
(100% continuous
duty cycle),
#6 AWG
(90 ° C rated)
Maximum Short
Circuit Current
85 amps
intermittently
85 amps intermittently 85 amps
intermittently
Maximum Voltage
Drop
0.30 volts - charge control mode
Total Current
Consumption
While operating - 15 mA (typical), at idle - 3 mA (tare)
Charger Regulation
Method
Solid state, 3-stage (bulk, absorption and float) Pulse Width Modulation
(PWM)
Charging Control Settings:
Lead Acid Battery 12 Volt System:
Float 12.5 - 14.5 Vdc
Bulk 13.0 - 15.0 Vdc
EQ = +1 above Bulk
24 Volt System:
Float 25.0 - 29.0 Vdc
Bulk 26.0 - 30.0 Vdc
EQ = +2 above Bulk
48 Volt System:
Float 50.0 - 58.0 Vdc
Bulk 52.0 - 60.0 Vdc
EQ = +4 above Bulk
NiCad battery 12 Volt System:
Float 14.5 - 16.5 Vdc
Bulk 15.0 - 17.0 Vdc
EQ = not
recommended
24 Volt System:
Float 29.0 - 33.0 Vdc
Bulk 30.0 - 34.0 Vdc
EQ = not recommended
48 Volt System:
Float 58.0 - 66.0 Vdc
Bulk 60.0 - 68.0 Vdc
EQ = not
recommended