Installing the at10.1 – Exide Technologies Section 94.30 User Manual
Page 16
INSTALLING THE AT10.1
12
1.7. MAKING THE AC INPUT CONNECTIONS
Follow these steps to connect ac power to the AT10.1:
1. Use a branch circuit breaker or fused disconnect switch, properly sized for
the maximum input current of the AT10.1, as shown in the table below. This
device should have lockout capability so that the ac input can be de-
energized and locked out for maintenance. A time delay circuit breaker or
slow-blow fuse is recommended.
NOTE: If your charger is wired for 480 Vac input, and is equipped with the
standard AIC ac circuit breaker (no ac fuses), you need a feeder breaker or
fuse rated to interrupt the short-circuit current of your ac supply.
2. Size the ac input wiring per the National Electric Code (NEC) and local
codes for the rating of the branch circuit breaker or fused disconnect switch.
3. Be sure the AT10.1 main transformer (T1) is properly connected for your ac
input voltage. See Section 1.6 for details.
4. Do not run external ac and dc power wiring, feeding the battery charger,
through the same conduit.
5. All specific requirements of your facility take precedence over these
instructions.
PROCEDURE
1. Remove the safety cover.
2. Run the ac wiring to terminals TB1-L1, TB1-L2 and TB1-GND on the I/O
panel in the enclosure. Compression lugs, accepting wire sizes #14-1/0
AWG, are supplied for your convenience. To make these connections, strip
the insulation 0.5in / 12.7mm on the incoming wires and connect the wires
to the appropriate lugs as shown on the next page.
3. Using a flat-head screwdriver, securely tighten the compression screws on
the lugs to 35-50 in-lb / 4.0-5.7 Nm.
4. Reinstall the safety cover after you have made and checked all connections.
Example (shaded):
A 130 Vdc/40 Adc
battery charger draws
71 Aac at 120 Vac.
All currents shown
are ±10%.
MAXIMUM INPUT CURRENT AT 120 Vac
1
OUTPUT VOLTAGE
OUTPUT
CURRENT
12
24
48
130
30
7.2
13
23
54
40
9.6
17
30
71
50
12
21
38
89
75
18
32
57
Note 1
100
24
42
75
n/a
Note 1: Not available with 120 Vac input. Input current is 67 Aac at 240 Vac.
1
To determine the input current, I
ac
, for other input voltages, use the formula:
ac
T
ac
V
I
I
120
×
=
where V
ac
is the new input voltage, and I
T
is the input current from the table above.