RES-WLRH Datasheet, PDF (1/1 Pages) Ohmite Mfg. Co. – Standard is 600 volts maximum to ground

WLRH Series
Heliohm Wirewound
The WLRH is a tough, versatile resistor appropriate
for the following applications: motor starting and
speed control, neutral grounding, lighting ballasts,
and A.C. compressor buffers. This resistor can also
be used in heating applications. Choose from 45
models ranging from 0.25 to 250 Ohms to best fit
your specific requirements.
Resistors feature nickel-copper, nickel-chrome or
stainless steel wire wound in a double helix around
the center core, depending on size and model. All
have ceramic cores with a spiral groove to grip the
coiled wire. The 90° flat bus style terminals are cor-
rosion resistant stainless steel.
Other mounting options are available; contact us
about your specific requirements.
O P TIONS
Inquires are welcome regarding special resistance
values, frames, screened enclosures, heat shields
and packages.
Characteristics
Current Rating 1.0 - 32.0 Amps continuous
Wattage Rating
Wattages can be calculated using I2R from
the data in the standard resistance value
table. These are maximums for continuous
duty allowing a 375°C temperature rise.
Working Voltage Standard is 600 volts maximum to ground
Resistance Tolerance ±10%
Ohmic Values Ohmic values listed in the table are at 25°C
±10%
Mounting Resistors can be mounted in various
options
Dimensions
7.25"
5.875"
1.5"
0.5"
Standard Resistance Values
Part
Cont. Amp
Number
Ohms Rating
WLRHR25E
WLRHR30E
WLRHR33E
WLRHR35E
WLRHR50E
WLRHR70E
WLRH1R0E
WLRH1R4E
WLRH1R5E
WLRH1R9E
WLRH2R0E
WLRH2R2E
0.25 32
0.3
31
0.33 30
0.35 29
0.5
27
0.7
22
1
18
1.4
15.5
1.5
15
1.9
13.3
2
13
2.2
12.5
ordering information
Part
Cont. Amp
Number
Ohms Rating
WLRH2R5E
WLRH3R2E
WLRH3R5E
WLRH4R0E
WLRH4R6E
WLRH4R8E
WLRH5R0E
WLRH5R5E
WLRH5R8E
WLRH6R0E
WLRH6R5E
2.5
12
3.2
10.8
3.5
10.5
4
10
4.6
9.2
4.8
8.8
5
8.5
5.5
8
5.8
7.7
6
7.6
6.5
7.4
Part
Cont. Amp
Number
Ohms Rating
WLRH7R0E
7
7.3
WLRH7R5E
7.5
7.2
WLRH8R0E
8
7.1
WLRH8R5E
8.5
7
WLRH8R6E
8.6
6.8
WLRH10RE
10
6.2
WLRH11RE
11
6.1
WLRH11R5E
11.5
5.9
WLRH12RE
12
5.8
WLRH15RE
15
5.3
WLRH20RE
20
4.6
Part
Cont. Amp
Number
Ohms Rating
WLRH27RE
27
3.6
WLRH36RE
36
3
WLRH45RE
45
2.5
WLRH62RE
62
2
WLRH80RE
80
1.8
WLRH100E
100
1.6
WLRH125E
125
1.4
WLRH150E
150
1.3
WLRH175E
175
1.2
WLRH200E
200
1.1
WLRH250E
250
1
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