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KEPCO'S ENGINE-START BATTERY CHARGERS
KES 12-40 Model (left) and KES 24-50 Model (right)
The KEPCO KES product line is uniquely suitable for any engine-start application. FEATURES
The KES offers the latest in switch mode power supply technology. While most · Single-Rate Chargers
· Analog Current Meter
engine-start chargers do not require an electrically quiet output, the KES boast
· Form C Charge-Fault Output
communications quality output, at a switchgear charger price. The KES is also · Temperature Compensation (Optional)
suitable as a battery eliminator. · Local/Remote ON-OFF
KES MODEL TABLE
MODEL OUTPUT VOLTAGE OUTPUT CURRENT LIMIT EFFICIENCY OUTPUT PROTECTION (4)
(FLOATING)
FACTORY ADJUSTABLE FACTORY ADJUSTABLE SHORT AC INPUT AC INPUT OVER OVER BATTERY
SETTING RANGE SETTING (1) RANGE CIRCUIT (2) RIPPLE (3) NOISE (3) 100V 200V VOLTAGE CURRENT REVERSED(5)
V d-c V d-c A d-c A d-c A d-c mV rms mV p-p V d-c A d-c A d-c
12 VOLT MODELS
KES 12-20 13.4 9.4 - 16.2 20 4 - 20 18 120 150 77% 81% 25 29 29
KES 12-40 13.4 9.4 - 16.2 40 8 - 40 36 150 200 81% 85% 25 55 58
24 VOLT MODELS
KES 24-10 26.8 18.8 - 32.4 10 2 - 10 9 150 200 80% 84% 44 17 14.5
KES 23-20 26.8 18.8 - 32.4 20 4 - 20 18 200 300 82% 86% 44 29 29
KES 24-50 26.8 18.8 - 32.4 50 10 - 50 45 200 300 82% 84% 44 70 72.5
48 VOLT MODELS
KES 48-5 53.6 37.6 - 55.0 5 1-5 4.5 200 300 81% 85% 60 11 7.25
KES 48-10 53.6 37.6 - 55.0 10 2 - 10 9 300 400 84% 87% 60 19 14.5
KES 48-25 53.6 37.6 - 55.0 25 5 - 25 22.5 300 400 84% 88% 60 45 36.3
(1) 4% accuracy for factory set current limit.
(2) 10% of current limit setting value foldback.
(3) Ripple and noise = 1.5 x indicated values for Ta = -10°C to 0°C. Values shown are satisfied for 0 to 100% load, 0 to 65°C. measuring bandwidth 100MHz.
(4) Shutdown upon fault condition. After disconnecting a-c input, remove the fault, wait about 40 seconds, then reconnect a-c input.
(5) Output disconnected for output current > 1.45 x rated current limit. Output limited to a negative Schottky diode drop.
CompuMess Elektronik GmbH · Lise-Meitner-Str. 1 · D-85716 Unterschleißheim
Telefon (089) 32 15 01 - 0 · Telefax (089) 32 15 01 - 11 Avenue, Flushing, NY 11352
KEPCO INC. · 131-38 Sanford
info@compumess.de · www.compumess.de · www.netzteile.de
Tel: (718) 461-7000 · Fax: (718) 767-1102 · Email: hq@kepcopower.com · www.kepcochargers.com
KES GENERAL SPECIFICATIONS KES ENGINE START
SPECIFICATION RATING/DESCRIPTION CONDITION BATTERY CHARGER
Temperature -10°C to 65°C Operating (Output performance
derated above 50°C and below 0°C)
-30°C to +75°C Storage
Cooling Forced air flow One fan (exhaust to the left side)
Two fans (KES 24-50 & KES 48-25)
Humidity 10 to 90% RH Operating and storage, wet bulb
temperature 35°C
Weight approx. 9.0 lbs. (4.1 Kg) KES 12-20, KES 24-10 & KES 48-5
approx. 12.0 lbs. (5.4 Kg) KES 12-40, KES 24-20 & KES 48-10
approx. 22.0 lbs. (10 Kg) KES 24-50 & KES 48-25
Dimensions 7.25 x 11.14 x 9 (inches) All except KES 24-50 & KES 48-25
HxWxD 184.2 x 283 x 228.6 (mm) KES 12-40 with Optional Temperature Probe
9.25 x 15.16 x 9 (inches) KES 24-50 & KES 48-25
235 x 384.6 x 228.6 (mm)
KES OUTPUT CHARACTERISTICS
SPECIFICATION RATING/DESCRIPTION CONDITION
Source Effect 0.2% max. 85-132V a-c, 170-265V a-c
Load Effect 0.6% max. (1) 0-100% load (2)
Temperature 1% max. -10 to 50°C
Effect
Time Effect 0.5% max. 1/2 to 8 hr.
(Drift) KES 24-50 with Optional Temperature Probe
Output Voltage 3mV/(°F)(cell), 5.4mV/(°C)(cell) Use optional temperature
Temperature 0.5% accuracy compensation probe, KEPCO INC. has long enjoyed an excellent
Compensation @ 2.23V cell voltage (3) 0°C to +35°C for Lead-Acid battery
reputation as a leading manufacturer of
(1) KES 12-20, KES 24-10, KES 48-5: 0.4%. precision laboratory and OEM type
(2) Measured at front panel test points; minimum input impedance of 1 Megohm required for voltage
measurement instrument.
power supplies and now brings its 60+
(3) Compensation calculated using: V = (KT) (Ta 77) (VB/2.23) where VB = Battery voltage. years of expertise in power conversion to
KT = 0.003V/ (°F)(cell), Ta = ambient temperature in °F and 2.23 = cell voltage at 77°F. the battery charger market.
KES INPUT CHARACTERISTICS
SPECIFICATION KES 12-20, KES 24-10, KES 48-5 KES 12-40, KES 24-20, KES 48-10 KES 24-50, KES 48-25 CONDITION
Voltage Range Nominal: 100-120V a-c, 220-240V a-c
Range: 85-265V a-c
Frequency Nominal: 50/60Hz; Range: 47-66Hz (1)
Input Current
100 to 120V a-c input 4.4A a-c max. 8.4A a-c max. 22A a-c max.
200 to 240V a-c input 2.2A a-c max. 4.2A a-c max. 11A a-c max.
Input Surge
100 to 120V a-c input 20A p-p max. 30A p-p max. 20A p-p max. Surge, cold start
interval > 30 sec.
200 to 240V a-c input 40A p-p max. 60A p-p max. 40A p-p max.
Leakage Current
100V a-c input 0.34mA a-c typ. 0.55mA a-c typ. 0.65mA a-c typ. Per IEC 950 and UL 1950
@ 120V a-c, 60Hz
240V a-c input 0.46mA a-c typ. 0.75mA a-c typ. 1.25mA a-c typ. Per IEC 950 and UL 1950
@ 240V a-c, 60Hz
Power Factor 0.99 typ. 100V a-c input, rated output
(1) KES units can operate with source power frequency up to 400Hz nominal (range to 440Hz). Power factor, efficiency and leakage current will derate as frequency increases.
Consult factory for additional information.
For more info, visit our Website: www.kepcochargers.com
CompuMess Elektronik GmbH · Lise-Meitner-Str. 1 · D-85716 Unterschleißheim
Telefon (089) 32 15 01 - 0 · Telefax (089) 32 15 01 - 11
info@compumess.de · www.compumess.de · www.netzteile.de