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+ 44 (0) 1883 717988
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ULV/ULH TYPE (UL
®
Approved)
The ULV(V=vertical & ULH(H=horizontal) models are UL approved metal-clad, wire-wound high-power resistors designed for
industrial and other applications. Our extruded aluminium housing provides rugged and strong protection. These models are
available with flying leads or Tab terminals and can be ordered with inductive or non-inductive windings. To conform to UL
safety requirements, ULV/ULH models differ from IRV/IRH models in that: The resistance range is smaller, the flying leads
are UL approved and the dielectric strength depends on the ohmic value.
GENERAL SPECIFICATIONS
Model
Wattage
Rating
on
Heat Sink
60
80
100
120
150
200
300
400
500
Resistance Range [ohms]
Inductive
Tab
terminals
0.1-375
0.1-281
0.1-225
0.1-187
0.1-150
0.1-450
0.1-300
0.1-225
0.1-180
Flying
leads
0.1-400
0.1-910
0.1-1.1K
0.1-1.3K
0.1-1.6K
0.1-2.2K
0.1-2.7K
0.1-4.3K
0.1-6.8K
Non-
Inductive
Tab
Flying
terminals
leads
0.1-180
0.1-180
0.1-110
0.1-110
0.1-225
0.1-240
0.1-187
0.1-300
0.1-150
0.1-390
0.1-450
0.1-1K
0.1-300
0.1-1.5K
0.1-225
0.1-2.2K
0.1-180
0.1-3K
Resistance
Tolerance
ULH/ULV60
ULH/ULV80
ULH/ULV100
ULH/ULV120
ULH/ULV150
ULH/ULV200
ULH/ULV300
ULH/ULV400
ULH/ULV500
+-2.0(G)
+-5.0(J)
+-10(K)
CHARACTERISTICS
Temperature Range
Insulation Resistance
Dielectric Strength
Temp. Coefficient
Short Time Overload
Moisture Resistance
Thermal Shock
Vibration
Moisture Load Life
Load Life
+-[2%+0.05ohms]
+-[3%+0.05 ohms]
+-[2%+0.05 ohms]
+-[1%+0.05 ohms]
+-[3%+0.05 ohms]
+-[5%+0.05 ohms]
Values in [ ] mean change in ohms after test
-55C to 200C
20M ohms minimum
[1000V+(rated voltage×2)] / min.
+-260ppm/C maximum
60W:5Xwattage rating-5second, 80to500W: 10Xwattage rating-5seconds
40C, 95% RH, DC100V case to terminal (500hrs.)
wattage rating 30min., -25C, 15minutes
10Hz-55Hz-10Hz (1min.),2hrs. each direction
40C,95%RH,0.1Xwattage rating, 1.5h.on,30min.off,500 hours
Wattage rating 1.5h. on, 30min. off, 500hours
SURFACE TEMPERATURE INCREASE VERSUS POWER LOAD
Applied voltage : AC RMS voltage
A mid-point bracket is required for 150, 300, 500W models to ensure sufficient contact with the heat sink.
Website :
http://www.rhopointcomponents.com
Email:
sales@rhopointcomponents.com
RHOPOINT [ RHOPOINT COMPONENTS ]
