Installation Guide

Charger Specifications
975-0638-01-01 Rev A 6–3
Charger Specifications
NOTE: All charging specifications are at nominal conditions: ambient
temperature of 77 °F (25 °C), split-phase 120/240 VAC, 60 Hz unless otherwise
specified.
DC Output SW 2524 120/240 SW 4024 120/240
Maximum output current 65 A 90 A
Nominal output voltage 24 VDC 24 VDC
Charging output voltage operation
range
12.0–32.0 VDC 12.0–32.0 VDC
Equalization cycle Automatic, Manual
by SCP
Automatic, Manual
by SCP
Optimal charging efficiency 90% 90%
Dead battery charge voltage > 12.0 VDC > 12.0 VDC
Charging methods (two settings)
Three-stage charge (Bulk, Absorption, Float)
[default]
Two-stage charge (Bulk, Absorption)
Without a battery temperature sensor
(three settings)
Cool 50 °F (10 °C)
Warm 77 °F (25 °C) [default]
Hot 104 °F (40 °C)
With a battery temperature sensor
(provided)
The temperature compensation
coefficients on a 24-volt battery
are as follows:
Flooded: 54 mV × (25 °C – BTS °C)
Gel: 54 mV × (25 °C – BTS °C)
AGM: 42 mV × (25 °C – BTS °C)
AC Input SW 2524 120/240 SW 4024 120/240
Power factor at full charge rate > 0.98 > 0.98
Current 9 A 13 A
Voltage 120/240 VAC 120/240 VAC
Voltage range
single-phase/split-phase
95/190 VAC to
135/270 VAC
95/190 VAC to
135/270 VAC
Frequency range 44
– 70Hz 44 – 70 Hz
AC INPUT Connection Split-phase (L1/L2) Split-phase (L1/L2)
ConextSW-NA-OwnersGuide.book Page 3 Thursday, December 20, 2012 2:00 PM