KEPCO KRR 12-20 Railroad Battery Charger - Manual (Page 2)

2 228-1561 033006
KEPCO, INC. " 131-38 SANFORD AVENUE " FLUSHING, NY. 11352 U.S.A. " TEL (718) 461-7000 " FAX (718) 767-1102
http://www.kepcopower.com " email: [email protected]
II — SPECIFICATIONS
The following specifications are at nominal input voltages at 25°C unless otherwise specified.
III — INSTALLATION
If desired, the battery charger output can be preset prior to mounting at a separate location.
PRESETTING THE OUTPUT
1. Remove the front panel window protecting input and output connections by loosening two captive screws.
2. Route the AC Input line wires through the appropriate openings in the top of the chassis and secure to L1 and L2 studs.
TABLE 1. MODEL KRR 12-20 SPECIFICATIONS
SPECIFICATION CONDITION DESCRIPTION
Output Volts d-c Adjustment Range
Factory set to 13.50V d-c,
adjustable from 10.5-18.0V d-c
Temperature Compensation 3mV/°F/cell (5.4mV/°C/cell) Pb
Maximum Output
Ratings
(A,W)
–10°C to 40°C 22A (330W)
50°C amb 22A (330W)
56°C amb 19.4A (290.4W)
60°C amb 17.6A (264W)
65°C amb 15.4A (231W)
Current Short Circuit 29 A
Efficiency
AC Input 100V 77% typical
AC Input 200V 81% typical
Ripple & Noise
(1)
(mV, p-p)
ripple 120
ripple noise 150
Stabilization
Source Effect (min - max) (85 to 132 V a-c, 170 to 265V a-c) 0.1% typical, 0.2% maximum
Load Effect, measured at sensing
terminals
(0%-100% load change) 0.2% typical, 0.4% maximum
Temperature Effect –10° to 65°C 0.5% typical, 1.0% maximum
Combined Effect Envelope, Source, Load and Temperature ±0.9% typical, ±1.8% maximum
Time Effect 8 hours at 25°C 0.2% typical, 0.5% maximum
Input Current: (Maximum Load At
25°C with Nominal Output Voltage)
100 - 120V a-c 4.4A rms max.
200 - 240V a-c 2.2A rms max.
Input Surge cold start,
interval > 30 sec (1)
100 - 120V ac 15A typ., 20A max. first surge
200- 240 V ac 30A typ., 40 max. first surge
Leakage Current: 120V a-c, 60Hz (per IEC 950 and UL1950) 024mA typ., 0.3mA max.
240V a-c, 60Hz (per IEC 950 and UL1950) 0.31mA typ., 0.38mA max. at
Power Factor 0.99 typical at rated output, rated input
Cooling Forced air flow - one fan
Weight 9.0 lbs. (4.1 Kg.)
Dimensions
Inches 7.25H x 11.14W X 9D
mm 184.2H x 283W x 228.6D
Input Protection Fuses (2) 10A, 150V
Kepco P/N 141-0057
(Bussman P/N MDA-10)
(1) Ripple and noise specification is 1.5 times the indicated values for a temperature range of -10 to 0°C. Ripple and noise levels
above are satisfied when conditions are 0 to 100% load, 0 to 65°C, and bandwidth