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IRV, ULV, IRH, ULH |
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IRV, ULV, IRH, ULH |
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The IRV(V=vertical) & IRH(H=horizontal) models are our standard wire wound, metal clad resistors. The ULV
and ULH models are UL approved versions of the IRV and IRH. These models have an extruded aluminum
housing providing rugged and strong protection. Options include flying leads or tab terminals, inductive
or non-inductive windings. The most common applications for these models are motor drives, braking
and snubber applications and power sources for industrial equipment.GENERAL SPECIFICATIONS
Model
Wattage Rating On
Heat SinkResistance Range [ohms]
Notes:
Standard
Tolerances
+-2%(G)
+-5%(J)
+-10%(K)Optional
Tolerances
+-1.0%(F)
+-0.5%(D)
+-0.25%(C)
+-0.1%(B)Extended
Resistances
>150K depending
on model
(please enquire)Inductive
Inductive
Tab Terminals
Flying Leads
Tab Terminals
Flying Leads
IRV/IRH 60
60W
0.1-400
0.1-180
ULV/ULH 60
0.1-375
0.1-400
0.1-180
IRV/IRH 80
80W
0.1-910
0.1-110
ULV/ULH 80
0.1-281
0.1-910
0.1-110
IRV/IRH 100
100W
0.1-1.1K
0.1-240
ULV/ULH 100
0.1-225
0.1-1.1K
0.1-225
0.1-240
IRV/IRH 120
120W
0.1-1.3K
0.1-300
ULV/ULH 120
0.1-187
0.1-1.3K
0.1-187
0.1-300
IRV/IRH 150
150W
0.1-1.6K
0.1-390
ULV/ULH 150
0.1-150
0.1-1.6K
0.1-150
0.1-390
IRV/IRH 200
200W
0.1-2.2K
0.1-1.1K
ULV/ULH 200
0.1-450
0.1-2.2K
0.1-450
0.1-1K
IRV/IRH 300
300W
0.1-2.7K
0.1-1.5K
ULV/ULH 300
0.1-300
0.1-2.7K
0.1-300
0.1-1.5K
IRV/IRH 400
400W
0.1-4.3K
0.1-2.2K
ULV/ULH 400
0.1-225
0.1-4.3
0.1-225
0.1-2.2K
IRV/IRH 500
500W
0.1-6.8K
0.1-3K
ULV/ULH 500
0.1-180
0.1-6.8K
0.1-180
0.1-3K
CHARACTERISTICS
1/Temperature Range
-55C to +200C
2/Insulation Resistance
20Mohms minimum
3/Dielectric Strength
IRV/IRH
AC1500V, 3500V, 4500V, 5400V;Max. leakage current: 2mA
ULV/ULH
See Note
4/Temp. Coefficient
+-260ppm/C maximum
5/Short Time Overload
+-[2%+0.05 ohms] 60W: 5XWatt Rating-5s.,80to500W: 10 X wattage rating-5s.
6/Moisture Resistance
+-[3%+0.05 ohms] 40C, 95% RH, DC100V case to terminal (500hrs.)
7/Thermal Shock
+-[2%+0.05 ohms] wattage rating 30min., -25C, 15minutes
8/Vibration
+-[1%+0.05 ohms] 10Hz-55Hz-10Hz (1min.),2hrs. each direction
9/Moisture Load Life
+-[3%+0.05 ohms] 40C,95%RH,0.1Xwattage rating, 1.5h.on,30min.off,500 hours
10/Load Life
+-[5%+0.05 ohms] wattage rating 1.5h. on, 30min. off, 500hours
Note:
ULV/ULH dielectric strength options of 1500V, 3500V, 4500V, 5400V are also available.
Optional dielectric strength must be higher than standard (calculated by formula)SURFACE TEMPERATURE INCREASE VERSUS POWER LOAD (Heatsink size 400X400X3mm)
DIMENSIONS
Model
Dimensions [mm]
Weight [g]
L1 +-2
L2 +-2
L3 +-2
W
+-0.5H
+-0.5D1
+-0.5D2
+-0.5a
b
IRH
IRV
H/V 60
100
87
60
41
22
4.3
8.65
10
12
110
113
H/V 80
150
137
110
41
22
4.3
8.65
10
12
195
189
H/V 100
165
152
125
41
22
4.3
8.65
10
12
216
215
H/V 120
182
169
142
41
22
4.3
8.65
10
12
245
241
H/V 150
210
197
170
41
22
4.3
8.65
10
12
283
290
H/V 200
165
146
125
60
30
5.3
12
13
17
485
447
H/V 300
215
196
175
60
30
5.3
12
13
17
600
600
H/V 400
265
246
225
60
30
5.3
12
13
17
770
780
H/V 500
335
316
295
60
30
5.3
