Corrib® resistors are ideal for
applications involving high
currents at very low resistance
values—as low as 0.1 ohm for the
300 Watt units. These large,
heavy-duty resistors are designed
to withstand frequent start-stop
cycles characteristic of motor
starting, dynamic braking and
other similar applications. Special
order units are available to
280 Series
Co rrib ® Fix e d a n d Ad ju s t a b le
Vit re o u s En a m e l P o w e r Re s is t o rs
accommodate up to 1500 watts.
Corribs®are manufactured with
corrugated resistive wire. To
accelerate cooling, the wire is
securely fused to the ceramic core
by the protective vitreous enamel
coating to improve durability Corrib
resistors are hollow-core units
which can be securely fastened to
chassis surfaces with thru bolts
and brackets.
Fixed
Fixed/Adjustable
35 watt
300 watt*
Diam.
.196 in. +.015/-.006
4.979 mm +.381/-.153
.25 in.
.500 in. ±.030
12.7 mm ±.79
.375 in.
.094 in.
.032 in.
.813 mm
min.
6.35 mm
9.525 mm
2.381 mm
Diam.
.173 in.
4.394 mm
1.125 in.
28.58 mm
.563 in.
14.288 mm
.625 in.
15.88 mm
.75 in.
19.05 mm
8.5 in.
2.0 in.
50.80 mm
.3125 in.
7.938 mm
215.90 mm
.75 in.
19.05 mm
* for values over .16Ω, terminal dimensions same as 35 watt at left.
FEATURES
• Ribbed construction aids in
rapidcooling.
ELECTRICAL
Tolerance: ±10% (K)
Power rating: Based on 25°C
free air rating.
Derating: Linearly from
100% @ +25°C to 0%
@ +400°C.
Overload: 10 times rated wattage
for 5 seconds.
Temperaturecoefficient:
±400 ppm/°C. ohms:
RES IS TOR HARDWARE
• Designed for equipment
requiring low resistance loads
at low ohmic values and high
currentcapacity.
• Especiallyconstructedfor
motorstarting, dynamic
braking, etc.
Thru Bolts Mounting Brackets for 300 Watt Corrib
Includes 2 each bracket, bolt, washers (centering, mica, lock)
and nut. Note: Single unit mounting contains 1 each bolt and nut;
2 each all Washers.
Part No.
No. of
Mounting
Derating %
Slotted
Elongated
Resistors
6110-8½
6126-P-8½
6127-P-8½
6128-P-8½
6129-P-8½
1
2
3
4
100%
83%
80%
80%
-
-
-
SPECIFICATIONS
MATERIAL
Dielectricwithstandingvoltage:
1000 VAC measured from
terminal to mounting bracket.
To calculate max. amps: use the
Coating: Lead free vitreous
enamel except for extreme low
resistance 35 watt models, and
very large models (1000 watts
and up), which are supplied in
Silicone Ceramic.
Extra Adjustable Lugs for 300 Watt Adjustable Corrib
͌
formula P/R
Part No.
For 300 Watt Adjustable Corrib
E300KR40 - E300KR63
E300K1R0 - E300K5R0
E300K8R0 - E300K20R
1974-A
Core: Tubular Ceramic.
Terminals: Tinned lug with hole.
Adjustable Lug: Supplied with
adjustable 300 watt models. Part
No. 1974-A or 1974-B.
E300KR10 - E300KR31
E300KR80 & E300K6R3
1974-B
S TOCK P ART NUMBERS FOR S TANDARD RES IS TANCE VALUES
Other Available Sizes (Partial List)
Wattage
Wattage
Prefix*
C90
Wattage
90
Core Length
4.0"
CoreO.D.
0.563"
0.75"
0.563"
0.563"
1.0"
Min. Ohms Max.Ohms
0.021
0.021
0.029
0.028
0.043
0.038
0.031
0.056
0.068
0.063
0.065
0.130
0.190
0.310
0.410
0.560
12
C100
C110
C135
C150
C160
C180
C190
C215
C220
C270
C375
C500
C750
C1000
C1500
100
110
135
150
160
180
190
215
220
270
375
500
750
1000
1500
3.5"
11
16
Part No.
Prefix á
Suffix
Part No.
Prefix á
Suffix
5.0"
6.0"
21
5.0"
27
0.02 –––R02
0.04 –––R04
0.06 –––R06
0.08 –––R08
0.1 –––410
0.12 –––R12
0.15 –––R15
0.16 –––R16
0.2 –––R20
0.25 –––R25
0.3 –––R30
0.31 –––R31
0.4 –––R40
0.5 –––R50
0.6 –––R60
0.63 –––R63
9
<
<
<
<
0.8 –––R80
1.0 –––1R0
1.2 –––1R2
1.25 –––1R25
1.6 –––1R6
2.0 –––2R0
2.5 –––2R5
3.1 –––3R1
4.0 –––4R0
5.0 –––5R0
6.3 –––6R3
8.0 –––8R0
10.0 –––10R
12.0 –––12R
16.0 –––16R
20.0 –––20R
100.0 –––100
<
<
4
9
<
6.0"
0.75"
0.75"
1.0"
26
4
4
9
4
6.5"
29
6.0"
35
<
7.0"
1.0"
43
9
9
4
9
9
4
9
9
4
9
9
9
9
9
9
4
4
4
9
9
9
9
9
9
9
9
9
6.0"
1.125"
1.5"
39
9
5.0"
41
<
<
<
<
4
10.5"
10.5"
12.0"
15.0"
20.0"
1.125"
1.625"
2.5"
80
9
9
9
117
198
258
358
4
4
4
4
4
4
2.5"
2.5"
9
4
9
9
4
9
9 = Most popular stock values
4 = Stock values
< = Non-stock values subject to
<
9
<
*Substitute "C" in prefix with
"E" for adjustable versions.
4
minimum handling charge per item
4
4
4
4
Ohmite Manufacturing 3601 Howard St.
Company Skokie, Illinois 60076
Tel. 847/675-2600
Fax 847/675-1505
Website: www.ohmite.com
E-mail: ohmite@wwa.com
19
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