Electrical specifications, Table a-1 – Windy Nation Xantrex C Series Multifunction DC Controller User Manual
Page 90

Specifications
70
975-0004-01-02 Rev D
Electrical Specifications
The following lists the electrical specifications for the
C-Series controller
s 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
