KEPCO RAX 100W - Manual (Page 2)

2
228-1226 REV 3 072302
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]
BROWNOUT VOLTAGE:
115V a-c input selection, 80V a-c min. (82V a-c min. for model RAX 28-3.5K)
230V a-c input selection, 160V a-c min. (164V a-c min. for model RAX 28-3.5K)
320V d-c input selection, 220V d-c min. (Jumper in 230V a-c position)
INPUT CURRENT: (maximum load at 50°C with nominal output voltage):
INPUT PROTECTION AND SOFT START: A triac soft start circuit reduces start-up surge. Units are protected against
shorts by an input fuse. Fuse value 5A.
INPUT SURGE: At 25°C from cold start:
NOTE: There are two input surges at turn-on:
EFFICIENCY: 75% typical (78% typical for model RAX 3.3-20K)
STABILIZATION:
TRANSIENT RECOVERY: A step load change from 50% to 100% of rated load in 50 microseconds or more, produces no
more than 4% output voltage excursion. Recovery to 1% of the original voltage is less than 1 millisecond.
OUTPUT HOLDING TIME: Output is maintained for 20 milliseconds minimum upon input interruption (30 milliseconds typi-
cal) with nominal input voltage and output load at 50°C current rating.
OVERVOLTAGE PROTECTION: Fixed, factory set. See Table 1. The overvoltage circuit is reset by interrupting input for
approximately 15 seconds.
OPERATING TEMPERATURE: 0 -71°C. See the derating graph, Figure 1.
STORAGE TEMPERATURE: -20°C to + 75°C.
HUMIDITY: 20% to 95% relative humidity, noncondensing
ISOLATION: (at 25°C ambient, 65% relative humidity):
Between input and output terminals, 3.75 KV a-c for 1 minute (with Y-capacitors removed).
Between input and output or chassis, 2000V a-c for 1 minute.
Between output terminals and chassis, 500V a-c for 1 minute.
INSULATION RESISTANCE: Between output and chassis, 100 megohms minimum (500V d-c)
LEAKAGE CURRENT:
0.5mA max at 120V a-c (U.L. Method)
0.75mA max at 240V d-c (U.L./VDE Method)
VIBRATION: Three Axes:
5-10 Hz., 10 mm amplitude
10-55 Hz., 2g
SHOCK: Three axes, 20g, 11 ms ±5msec pulse duration
INPUT SOURCE
NOMINAL INPUT VOLT-
AGE
MINIMUM INPUT VOLTAGE
120 V a-c input selection 1.8A typ. - 2.5A max. 2.3A typ. - 2.9A max.
220-240V a-c input selec-
tion
0.9A typ. - 1.3A max. 1.2A typ. - 1.6A max.
d-c input selection 0.7A max. (320V input) 1.0A max. (240V input)
INPUT SOURCE FIRST SURGE (5ms max.) SECOND SURGE (3ms max.)
120 V a-c input selection 17A max. 12A typ.
220-240V a-c input selec-
tion
34A max. 10A typ.
320V d-c input selection 34A max. 10A typ.
CHARACTERISTIC TYPICAL MAXIMUM
Source Effect (min - max) 0.8% 1.5%
Load Effect, measured at sensing terminals (10% - 100% load change) 0.8% 1.5%
Temperature effect (0 to 71°C) 1.0% 2.0%
Combined effect (envelope) 2.0% 4.0%
Drift (8 hr. at 25°C) 0.1% 0.5%