2
228-1546 REV 4
090712
KEPCO, INC.
131-38 SANFORD AVENUE
FLUSHING, NY. 11355 U.S.A.
TEL (718) 461-7000
FAX (718) 767-1102
http://www.kepcopower.com
email: [email protected]
INPUT CURRENT:
(maximum load at 25°C with nominal output voltage):
1.4A typ. (100 Va-c input, 100% load); 0.8A typ. (240 Va-c input, 100% load)
INPUT PROTECTION AND SOFT START:
A thermistor circuit reduces start-up surge. Units are protected against shorts by an input
fuse. Fuse value 3A, 250V.
INPUT SURGE:
First surge only, not including current flow into EMI filter.
20A typ. (100 V a-c, 100% load, 25°C cold start); 40A typ. (240 Va-c, 100% load, 25°C cold start)
LEAKAGE CURRENT:
0.60mA max, 0.45mA typ at 100V a-c (single pole switching) in conformance to DENAN .
0.75mA max, 0.55mA typ at 240V d-c (single pole switching in conformance to UL 1950/IEC 950)
POWER FACTOR:
0.55 typ. at 100 Va-c, 0.45 typ. at 240 Va-c
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. Temperature range from -10 to 60°C.
OUTPUT HOLDING TIME:
Upon input interruption the output is maintained for 180 milliseconds typical with 240 Va-c input voltage,
and for 20 milliseconds typical with 100 Va-c input voltage. The condition for output load is 100%.
START UP TIME:
350mS max. (+5V, ±12V) at 100 Va-c, 150mS max. (+5V, ±12V) at 240 Va-c. Output voltage may not rise with con-
stant current load. Output voltage may rise momentarily, then drop during brief input voltage interruptions.
OVERVOLTAGE PROTECTION:
Fixed, factory set. See Table 1. The overvoltage circuit is set by Zener diode clamp.
OVERCURRENT:
Hiccup type, output voltage returns to rated level upon removal of cause (long term overcurrent could damage unit)
OPERATING TEMPERATURE:
-10 to 60°C (start up -20 to -10°C). See the derating
plot, Figure 1. Do not allow the power supply to become dust covered because that will
decrease the cooling efficiency of the unit and cause insulation to deteriorate.
STORAGE TEMPERATURE:
-30°C to + 75°C.
COOLING:
Natural convection
ORIENTATION:
Horizontal (see Figure 2).
HUMIDITY:
10% to 90% relative humidity, operating and storage, noncondensing,
wet bulb temperature
≤
35°C
WITHSTANDING VOLTAGE:
(at 5 to 35°C ambient, 45 to 85% relative humidity, cutout current 10 ma):
Between input and output terminals, 3.0 KV a-c for 1 minute.
Between input and chassis, 2000V a-c for 1 minute.
Between output terminals and chassis, 500V a-c for 1 minute.
INSULATION RESISTANCE:
(500V d-c, 5 to 35°C ambient, 45 to 85% relative humidity)
Between input and output, input and chassis, and output and chassis:100 megohms
minimum.
VIBRATION:
Three axes, one hour each, sweep time 10 min:, nonoperating
5-10 Hz., 10 mm amplitude;10-200 Hz., 2G (19.6m/s
2
) acceleration
SHOCK:
Three axes, 60G (588m/s
2
), 11 ms ±5msec pulse duration, three shocks each
axis, nonoperating, 1/2 sine pulse
SAFETY:
Meets UL 60950-1.c-UL and TÜV Rheinland EN60950 (ambient temp. 50°C max,). Meets creepage and clearance require-
ments of DENAN Appendix 8 (at 100V a-c only). MTW 60W units are CE marked per the Low Voltage Directive (LVD), EN60950. [The
standards do not apply with DC input operation]
EMC - EMISSIONS:
Conducted Noise 0.15MHz to 30MHz: FCC Class B, VCCI-B, EN55011-B, EN55022-B
EMC - IMMUNITY:
ESD: EN 61000-4-2 Level 4, Normal operation.
Radiated Field Noise: EN 61000-4-3 Level 3, Normal operation.
Electrical Fast Transient/Burst (EFT): EN 61000-4-4 Level 3, Normal operation.
Surge: EN 61000-4-5 Level 4, no damage.
Conducted Noise: EN 61000-4-6 Level 3, Normal operation.
Power Frequency Magnetic Field: EN 61000-4-8 Level 4, Normal operation.
Voltage Dips, Short Interruptions, Voltage Variation: EN 61000-4-11, Normal operation.
ELECTROLYTIC CAPACITOR:
Life expectancy: 10,000 hours min. (ambient temp. 50°C)
WARRANTY:
One year.
III — INSTALLATION
MOUNTING THE POWER SUPPLY:
Refer to Figures 2, 3 and 4. The unit may be mounted on one mounting surface. The air sur-
rounding the power supply must not exceed the ambient temperature values given in the graph in Figure 1.
FIGURE 1. DERATING PLOT
