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These economical and powerful components comprise two, three or four high power resistors
housed in partial steel covers at each end. These rugged, powder coated covers ensure an
excellent seal. The internal resistors use aluminum plates at each end instead of our
standard cement molding. This innovation reduces construction time and reduces cost,
at no reduction of performance. The major application of this exciting new model is high
power inverter braking units.GENERAL SPECIFICATIONS
MODEL
Internal
Resistor TypePower Rating
in free air [W]Resistance
Range[ohms]Resistance
ToleranceLCA 3.2K
IRV1600X2
1.0k
2.3 - 160
J[+-5%]
K[+-10%]
LCA 4.0K
IRV2000X2
1.2k
3.0 - 220
LCA 4.8K
IRV2400X2
1.3k
4.0 - 280
LCA 5.6K
IRV2800X2
1.4k
4.5 - 270
LCA 4.8K
IRV1600X3
1.3k
0.75 - 265
LCA 6.0K
IRV2000X3
1.4k
1.0 - 330
LCA 7.2K
IRV2400X3
1.5k
1.5 - 420
LCA 9.6K
IRV2800X3
1.6k
1.5 - 390
LCA 6.4K
IRV1600X4
1.7k
0.5 - 340
LCA 8.0K
IRV2000X4
1.9k
0.75 - 440
LCA 9.6K
IRV2400X4
2.1k
1.0 - 560
LCA 11.2K
IRV2800X4
2.3k
1.1 - 520
CHARACTERISTICS Values in [ ] mean change in ohmic value after test
Temperature Range
-55C - 275C
Insulation Resistance
20Mohms min.
Dielectric Strength
Available options: AC1500V, 3500V(Max. leakage current: 2mA)
Temp. Coefficient
+- 260ppm/C max.
Short Time Overload
+- [2%+0.05 ohms] 10 X Power rating 5 secs.
Moisture Resistance
+- [3%+0.05 ohms] 40C, 95% RH, DC100V case to terminal, 500hrs.
Thermal Shock
+- [2%+0.05 ohms] Power rating 30min., -40C 15 min.
Vibration
+- [2%+0.05 ohms] 10Hz-55Hz-10Hz (1 min), 2hrs each direction.
Load life
+- [5%+0.05 ohms] Power rating 1.5hrs on, 30min off, 500hrs.
DIMENSIONS
Model
Weight
[Kg]Dimensions[mm]
L1+-5
L2+-3
W1+-2
W2+-2
LCA 3.2K
6.5
484
456
130
79
LCA 4.0K
7.5
554
526
LCA 4.8K
8.5
634
606
LCA 5.6K
10.0
704
676
LCA 4.8K
9.0
484
456
202
140
LCA 6.0K
11.0
554
526
LCA 7.2K
13.0
634
606
LCA 9.6K
15.0
704
676
LCA 6.4K
12.0
484
456
270
LCA 8.0K
14.0
554
526
LCA 9.6K
16.5
634
606
LCA 11.2K
19.0
704
676
ORDERING PROCEDURE EXAMPLE
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