KEPCO EL Series Electronic Load Operator Manual P/N 243-1295 Firmware Version 3.22 through 3.41 - Manual (Page 12)

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SERIES EL 062011
Series EL electronic loads are designed for future expandability to accommodate increased
testing needs as user requirements grow. Any EL electronic load can be expanded to a full 5 kW
capability (with a commensurate increase in maximum current carrying capacity). Additionally,
the Series EL system can be expanded above the power/current limits defined in Table 1-1 by
adding additional loads. These slave loads act in concert with a master load to increase total
power dissipation (and current handling).
TABLE 1-1. MODEL PARAMETERS
Model number
Operating Limits Overload Protection (1) Minimum On
Resistance
Short Mode
(Ohms)
Rated
Power
(Watts)
Rated
Voltage
((Volts)
Rated Current
Max (any Mode)
(Amperes)
Power (2)
(Watts)
Voltage (3)
(Volts)
Current (2)(4)
(Amps)
EL 1K-50-100 1000 50 100 1050 52.5 105 0.008
EL 1K-200-100 1000 200 100 1050 210 105 0.014
EL 1K-400-70 1000 400 70 1050 420 73.5 0.046
EL 1K-600-30 1000 600 30 1050 630 31.5 0.017
EL 1K-50-100D
1000 (5) 50 (5) 100 (5) 1050 (5) 52.5 (5) 105 (5) 0.008 (5)
EL 1K-200-100D
1000 (5) 200 (5) 100 (5) 1050 (5) 210 (5) 105 (5) 0.014 (5)
EL 1K-400-70D
1000 (5) 400 (5) 70 (5) 1050 (5) 420 (5) 73.5 (5) 0.046 (5)
EL 1K-600-30D
1000 (5) 600 (5) 30 (5) 1050 (5) 630 (5) 31.5 (5) 0.017 (5)
EL 2K-50-200 2000 50 200 2100 52.5 210 0.004
EL 2K-200-200 2000 200 200 2100 210 210 0.007
EL 2K-400-140 2000 400 140 2100 420 147 0.023
EL 2K-600-60 2000 600 60 2100 630 63 0.083
EL 3K-50-300 3000 50 300 3150 52.5 315 0.005
EL 3K-200-300 3000 200 300 3150 210 315 0.005
EL 3K-400-210 3000 400 210 3150 420 220.5 0.015
EL 3K-600-90 3000 600 90 3150 630 94.5 0.056
EL 4K-50-500 4000 50 500 4200 52.5 525 0.002
EL 4K-200-500 4000 200 500 4200 210 525 0.003
EL 4K-400-350 4000 400 350 4200 420 367.5 0.009
EL 4K-600-150 4000 600 150 4200 630 157.5 0.033
EL 5K-50-600 5000 50 600 5250 52.5 630 0.001
EL 5K-200-600 5000 200 600 5250 210 630 0.002
EL 5K-400-420 5000 400 420 5250 420 441 0.008
EL 5K-600-200 5000 600 200 5250 630 210 0.028
NOTES:
(1)
Temperature protection: Per FET safe junction temperature.
(2) Maximum operating power and current may be reduced if a) ambient temperature exceeds 25°C or b) operating conditions
(ambient temperature, available air flow, etc.) cause internal load temperature to exceed safe operating conditions for
FETs (temperature fault).
(3) Maximum permissible voltage across ±LOAD terminals. This voltage should never be exceeded, regardless of load power
or load on/off states. Applied voltage must always be positive: +LOAD with respect to –LOAD.
(4) Each FET is individually fused. A blown fuse is reported as a Fault.
(5) Per Channel.