Corrib
廬
resistors are ideal for
applications involving high
currents at very low resistance
values鈥攁s 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
accommodate up to 1500 watts.
Corribs
廬
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.
280 Series
Corrib
廬
Fixed and Adjustable
Vitreous Enamel Power Resistors
Fixed
35 watt
Diam.
.173 in.
4.394 mm
.375 in.
9.525 mm
.094 in.
2.381 mm
Fixed/Adjustable
300 watt*
.500 in.
鹵.030
12.7 mm
鹵.79
Diam.
.196 in. +.015/-.006
4.979 mm +.381/-.153
.25 in.
6.35 mm
.032 in.
.813 mm
min.
.563 in.
14.288 mm
2.0 in.
50.80 mm
.625 in.
15.88 mm
.3125 in.
7.938 mm
1.125 in.
28.58 mm
8.5 in.
215.90 mm
.75 in.
19.05 mm
.75 in.
19.05 mm
* for values over .16
鈩?/div>
, terminal dimensions same as 35 watt at left.
FEATURES
鈥?Ribbed construction aids in
rapid cooling.
鈥?Designed for equipment
requiring low resistance loads
at low ohmic values and high
current capacity.
鈥?Especially constructed for
motor starting, dynamic
braking, etc.
ELECTRICAL
Tolerance:
鹵10% (K)
Power rating:
Based on 25擄C
free air rating.
Derating:
Linearly from
100% @ +25擄C to 0%
@ +400擄C.
Overload:
10 times rated wattage
for 5 seconds.
Temperature coefficient:
鹵400 ppm/擄C. ohms:
Dielectric withstanding voltage:
1000 VAC measured from
terminal to mounting bracket.
To calculate max. amps:
use the
formula
P/R
RESISTOR HARDWARE
Thru Bolts Mounting Brackets for 300 Watt Corrib
I
ncludes 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.
Slotted
Elongated
6110-8錕?frac12;
-
-
-
6126-P-8錕?frac12;
6127-P-8錕?frac12;
6128-P-8錕?frac12;
6129-P-8錕?frac12;
No. of
Resistors
1
2
3
4
Mounting
Derating %
100%
83%
80%
80%
SPECIFICATIONS
MATERIAL
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.
Core:
Tubular Ceramic.
Terminals:
Tinned lug with hole.
Adjustable Lug: Supplied with
adjustable 300 watt models. Part
No. 1974-A or 1974-B.
Extra Adjustable Lugs for 300 Watt Adjustable Corrib
Part No.
1974-A
1974-B
For 300 Watt Adjustable Corrib
E300KR40 - E300KR63
E300K1R0 - E300K5R0
E300K8R0 - E300K20R
E300KR10 - E300KR31
E300KR80 & E300K6R3
STOCK PART NUMBERS FOR STANDARD RESISTANCE VALUES
C1500K鈥撯€撯€?500
鈥撯€撯€?500
鈥撯€撯€?/div>
C1000K鈥撯€撯€?000
鈥撯€撯€?000
鈥撯€撯€?/div>
C1000K鈥撯€撯€?000
鈥撯€撯€?000
鈥撯€撯€?/div>
C1500K鈥撯€撯€?500
鈥撯€撯€?500
鈥撯€撯€?/div>
Wattage
C300K鈥撯€撯€?00
鈥撯€撯€?00
鈥撯€撯€?/div>
E300K鈥撯€撯€?00
鈥撯€撯€?00
鈥撯€撯€?/div>
C35K
鈥撯€撯€?/div>
35
Ohmic value
(Adjustable)
Wattage
C300K鈥撯€撯€?00
鈥撯€撯€?00
鈥撯€撯€?/div>
Ohmic value
C35K
鈥撯€撯€?/div>
35
E300K鈥撯€撯€?00
鈥撯€撯€?00
鈥撯€撯€?/div>
(Adjustable)
Other Available Sizes (Partial List)
Prefix*
C90
C100
C110
C135
C150
C160
C180
C190
C215
C220
C270
C375
C500
C750
C1000
C1500
Wattage
90
100
110
135
150
160
180
190
215
220
270
375
500
750
1000
1500
Core Length
4.0"
3.5"
5.0"
6.0"
5.0"
6.0"
6.5"
6.0"
7.0"
6.0"
5.0"
10.5"
10.5"
12.0"
15.0"
20.0"
Core O.D.
0.563"
0.75"
0.563"
0.563"
1.0"
0.75"
0.75"
1.0"
1.0"
1.125"
1.5"
1.125"
1.625"
2.5"
2.5"
2.5"
Min. 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
Max. Ohms
12
11
16
21
27
26
29
35
43
39
41
80
117
198
258
358
Part No.
Prefix
謾
Suffix
Part No.
Prefix
謾
Suffix
謾
謾
0.02
0.04
0.06
0.08
0.1
0.12
0.15
0.16
0.2
0.25
0.3
0.31
0.4
0.5
0.6
0.63
鈥撯€撯€揜02
鈥撯€撯€揜04
鈥撯€撯€揜06
鈥撯€撯€揜08
鈥撯€撯€?10
鈥撯€撯€揜12
鈥撯€撯€揜15
鈥撯€撯€揜16
鈥撯€撯€揜20
鈥撯€撯€揜25
鈥撯€撯€揜30
鈥撯€撯€揜31
鈥撯€撯€揜40
鈥撯€撯€揜50
鈥撯€撯€揜60
鈥撯€撯€揜63
9
<
<
<
<
9
9
<
<
< 4
< 4
4
9
< 4
9 9
<
4
9
4
9
9
9
9
4
9
4
4
0.8
1.0
1.2
1.25
1.6
2.0
2.5
3.1
4.0
5.0
6.3
8.0
10.0
12.0
16.0
20.0
100.0
鈥撯€撯€揜80
<
鈥撯€撯€?R0
4
鈥撯€撯€?R2
鈥撯€撯€?R25
<
鈥撯€撯€?R6
鈥撯€撯€?R0
鈥撯€撯€?R5
鈥撯€撯€?R1
鈥撯€撯€?R0
鈥撯€撯€?R0
鈥撯€撯€?R3
鈥撯€撯€?R0
鈥撯€撯€?0R
鈥撯€撯€?2R
鈥撯€撯€?6R
鈥撯€撯€?0R
鈥撯€撯€?00
< 4
4
9
9
<
9
9
4
9
9
4
9
9
9
9
9
9
4
4
4
9
9
9
9
9
9
9
9
9
4
4
4
4
4
*Substitute "C" in prefix with
"E" for adjustable versions.
9
= Most popular stock values
4
= Stock values
<
= Non-stock values subject to
minimum handling charge per item
4
4
Ohmite Manufacturing
Company
3601 Howard St.
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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