Ohmite
Power Resistors
Visit OhmiteÕs Website at www.ohmite.com
Edgewound
Edgewound/Round Wire Power Resistors
EACH
10-24
Stock
No.
Mfr.Õs
Type
Max.
Amps
Dia.
(In.)
Overall
Height
Ohms
1-9
25-49
296-4015
296-4017
296-4025
296-4030
296-4035
296-4040
296-4045
296-4050
296-4055
296-4060
296-4065
296-4070
296-4075
PFE5KR100
PFE5KR250
PFE5KR500
PFE5KR750
PFE5K1R00
PFE5K1R30
PFE5K1R60
PFE5K2R20
PFE5K2R80
PFE5K3R50
PFE5K4R50
PFE5K5R40
PFE5K6R80
0.10
0.25
0.50
0.75
1.00
1.30
1.60
2.20
2.80
3.50
4.50
5.40
6.80
100.0
63.0
47.0
39.0
33.0
29.0
26.0
18.4
16.3
14.6
12.7
11.8
10.3
2.125
1.875
1.875
1.875
1.875
1.875
1.875
1.750
1.750
1.625
1.750
1.750
1.625
3.313
3.125
3.125
3.125
3.125
2.563
2.563
2.500
2.500
2.438
2.500
2.500
2.438
179.74
133.32
132.37
119.63
97.00
81.67
82.14
79.75
70.95
173.94
126.97
127.37
113.94
92.38
77.78
78.24
77.17
67.57
61.76
99.95
98.41
95.24
168.51
123.06
123.51
110.43
89.54
75.38
75.83
74.76
65.49
59.83
96.88
95.38
92.31
63.82
104.95
103.33
100.00
Powr-Ribsª are designed to handle 700-1000 watts of power. Their construction consists of thick, heavy resistance alloy
wound around porcelain ceramic core insulators supported by a metal mounting bar. The bar is slotted on each end to
facilitate installation. Edgewound Powr-Ribsª provide low resistance at high current ratings, while Round Wire Powr-Ribsª
provide higher resistance at lower current ratings. Clamp-type terminals on the Edgewound units permit a reliable
connection which can be moved along the resistive element to obtain intermediate values. Tolerance: ±10%. Average
Weight: 3 lbs. 16.25" long between mounting centers.
Roundwire
296-4086
296-4088
PFR5K13R0
PFR5K20R0
13.00
20.00
7.6
5.9
2.063
2.063
2.625
2.625
128.84
122.75
124.69
116.90
120.79
113.31
Fixed/Adjustable Vitreous Enamel High Power Corrib Resistors
Corrib resistors are ideal for applications involving high currents at very low resistance values Ð as low as 0.1 ohm at 300 watts. These large, heavy-duty resistors
are designed to withstand frequent start-stop cycles characteristic of motor starting, dynamic breaking, and other similar applications. They are manufactured with
corrugated resistive wire. Ribbed construction aids in rapid cooling. To accelerate cooling, the wire is securely fused to the ceramic core by a protective vitreous
enamel coating to improve durability. Corrib resistors are hollow-core units which can be securely fastened to chassis surfaces with the same thru bolts and
brackets used with the 210/270 series resistors. Tolerance: ±10%. Core Diameter: 8.5" long ´ 1.125". Overall Height: 1.895".
Fixed 300 Watts
Adjustable 300 Watts
EACH
10-24
EACH
Stock
No.
Mfr.Õs
Type
Max.
Amps
Stock
No.
Mfr.Õs
Type
Max.
Amps
Ohms
Ohms
1-9
25-49
1-9
10-24
25-49
296-1955
296-1965
296-1970
296-1973
296-1975
296-1980
296-1985
296-1990
296-1995
296-1997
296-2000
296-2005
296-2010
296-2015
296-2020
296-2025
Ñ
C300KR10
C300KR31
C300KR50
C300K1R0
C300K1R2
C300K1R6
C300K2R0
C300K3R1
C300K4R0
C300K5R0
C300K6R3
C300K8R0
C300K10R
C300K12R
C300K16R
C300K20R
Ñ
0.10
0.31
0.50
1.00
1.20
1.60
2.00
3.10
4.00
5.00
6.30
8.00
10.00
12.00
16.00
20.00
Ñ
54.7
31.1
24.5
17.3
15.8
13.7
12.2
9.8
8.6
7.7
6.9
6.1
5.5
5.0
4.3
3.8
Ñ
Ñ
35.15
31.67
23.47
24.82
24.82
23.87
20.83
19.41
23.38
18.55
22.36
18.55
16.25
21.14
18.22
17.87
Ñ
33.48
30.15
22.35
23.63
23.64
22.73
19.84
18.49
21.93
17.67
21.63
17.67
15.54
20.13
17.64
17.01
Ñ
32.45
29.23
21.66
22.91
22.91
22.03
19.24
17.93
21.27
17.12
20.96
17.12
15.07
19.50
17.09
16.50
Ñ
296-2445
296-2450
296-2455
296-2460
296-2465
296-2470
296-2475
296-2477
296-2478
296-2480
296-2485
296-2490
296-2495
296-2500
296-2505
296-2510
296-2515
296-2520
E300KR10
E300KR16
E300KR20
E300KR25
E300KR31
E300KR50
E300K1R0
E300K1R6
E300K2R0
E300K3R1
E300K4R0
E300K5R0
E300K6R3
E300K8R0
E300K10R
E300K12R
E300K16R
E300K20R
0.10
0.16
0.20
0.25
0.31
0.50
1.00
1.60
2.00
3.10
4.00
5.00
6.30
8.00
10.00
12.00
16.00
20.00
54.7
43.3
38.7
34.6
31.1
24.5
17.3
13.7
12.2
9.8
8.6
7.7
6.9
6.1
5.5
5.0
4.3
3.8
38.04
32.26
34.58
33.90
35.63
25.43
23.15
28.83
24.78
26.85
26.85
23.85
26.67
25.85
23.15
25.08
25.08
20.83
36.22
30.84
33.46
32.29
34.48
24.61
22.41
27.46
23.60
25.57
25.57
22.71
25.39
24.62
22.05
23.89
23.89
19.85
35.10
29.90
32.42
31.29
33.41
23.84
21.71
26.62
22.88
24.78
24.78
22.02
24.62
23.86
21.37
23.15
23.15
19.23
11
Ñ
Ñ
Ñ
Ñ
Ñ
Ñ
Metal-Mite Aluminum Housed Axial Lead Wirewound Resistors
These molded-construction metal housed axial-lead performance resistors are available in higher power ratings than standard
axial-lead resistors and are better suited to withstand shock, vibration and harsh environmental conditions. Metal-Mite resistors
are aluminum housed to maintain high stability during operation and to permit secure mounting to chassis surfaces. The metal
housing also provides heat-sinking capabilities, allowing the units to exceed the power ratings set by Mil specifications. Meets
or exceeds MIL-R-18546 specifications. Solder coated axial lead terminals. Tolerance: ±1%. Power rating based on chassis
mounting area and temperature stability. Proper heat sink for wattage is: 4" ´ 6" ´ 2" ´ .040" aluminum chassis for 5 and
10 watt units; 5" ´ 7" ´ 2" ´ .040 aluminum chassis for 25 watt units; 12" ´ 12" ´ .059" aluminum panel for 50 watt units.
EACH
EACH
10-24
EACH
10-24
Stock
No.
Mfr.Õs
Type
Stock
No.
Mfr.Õs
Type
Stock
No.
Mfr.Õs
Type
Watts
Ohms
Watts
Ohms
Watts
Ohms
1-9
10-24
25-49
1-9
25-49
1-9
25-49
296-1026
296-1027
296-1028
296-1030
296-1038
296-1045
296-1050
296-1065
296-1070
805F25R
805F50R
805F100
805F300
805F25K
810F5R0
810F10R
825FR10
825F1R0
5
5
5
5
5
10
10
25
25
25
50
100
300
25K
5
10
0.1
1
3.33
3.79
3.67
3.67
6.25
3.62
3.62
6.00
4.53
3.17
3.73
3.49
3.49
5.96
3.45
3.46
5.70
4.32
3.08
3.62
3.38
3.38
5.77
3.34
3.35
5.54
4.18
296-1075
296-1080
296-1085
296-1090
296-1096
296-1105
296-1124
296-1125
296-1130
825F2R0
825F3R0
825F5R0
825F10R
825F25R
825F250
850FR10
850F1R0
850F2R0
25
25
25
25
25
25
50
50
50
2
3
5
10
25
250
0.1
1
4.53
4.53
4.53
4.53
4.76
4.67
6.37
5.22
5.49
4.32
4.32
4.32
4.32
4.61
4.44
6.06
4.97
5.31
4.18
4.18
4.18
4.18
4.46
4.31
5.88
4.82
5.15
296-1135
296-1140
296-1145
296-1150
296-1155
296-1160
296-1170
296-1175
296-1176
850F3R0
850F10R
850F15R
850F25R
850F50R
850F75R
850F150
850F500
850F1K0
50
50
50
50
50
50
50
50
50
3
10
15
25
50
5.22
5.49
5.49
5.22
5.49
5.80
5.81
5.22
6.21
4.97
5.31
5.31
4.97
5.31
5.52
5.54
4.97
6.00
4.82
5.15
5.15
4.82
5.15
5.35
5.37
4.82
5.82
75
150
500
1.0K
2
Dimensions (Inches)
Power
Rating
S
Min.
AWG
A
B
C
D
E
F
G
±.015
H
±.010
J
K
L
M
Min.
N
±.005
P
R
±.062
±.005
±.005
±.031
±.0025
±.015
±.015
±.015
±.010
±.005
±.062
Watts
5
10
25
50
.444
.562
.719
.490
.625
.781
.844
.600
.750
1.062
1.968
.245
.312
.391
.422
.334
.420
.550
.630
.646
.800
1.080
1.140
.320
.390
.546
.610
.060
.075
.088
.088
.126
.183
.231
.260
.078
.093
.172
.196
.093
.093
.125
.125
.085
.140
.140
.140
.050
.086
.086
.086
.266
.312
.438
.438
1.125
1.375
1.938
2.781
16
12
12
12
1.563
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