Page 1
BLACKBURN
®
ALUMINUM DUAL RATED CONNECTORS
Listed for Aluminum and Copper Conductors
Aluminum Dual Rated Connectors are intended for use
with aluminum, copper-clad aluminum and copper
conductors [in accordance with the recommendations of
National Electric Code (NEC) for insulated conductors
rated 90ºC or less].
For stranded conductors. These connectors are intended
for use with the following conductor strand congurations:
Aluminum - Class B concentric, compressed and
unidirectional lay compact.
Copper - Class B concentric and compressed,
Class C concentric
Copper-Clad Aluminum - Class B concentric
Recommended Procedures for installing Aluminum Dual
Rated Connectors with Aluminum or Copper Conductor
CAUTION
De-energize before installing connectors.
INSTRUCTIONS:
1) Check the conductor size marked on the connector to
make sure it is the correct connector for the
conductor size.
2) Carefully strip the conductor insulation, avoiding any
damage to the conductor strands. The length of the
conductor barrel should be used to measure strip
length (see Figure 1).
3) Wire brush the conductor, and when using aluminum
conductor, apply Blackburn
Weaver Type CP oxide inhibiting compound, and then
fully insert the conductor into connector. Wipe off any
excess oxide inhibitor (see Figure 2 & 3).
4) Each connector has one tightening torque range
regardless of the conductor size it accommodates.
Once the proper connector has been selected, check
the maximum conductor size it will accommodate and
apply the recommended tightening torque to the
setscrew in accordance with TABLE 1 (see Figure 4).
5) Prior to mounting the connector, apply Blackburn
Contax
®
Type CT or Weaver Type CP oxide inhibiting
compound to the at contact surface of the connector.
6) Mounting hardware should be torqued to the values
shown in TABLE 2 (see Figure 4). Although the
connectors will perform satisfactorily without washers,
good installation practice would recommend that at
and Belleville washers be used in conjunction with the
mounting hardware.
Thomas & Betts Corporation
Memphis, Tennessee
www.tnb.com
© 2016 Thomas & Betts. All Rights Reserved.
The indicated marks are registered in the United States and possibly elsewhere.
®
Contax® Type CT or
P/N 027-564-01 D
®
Sheet 1 of 1
Strip the conductor
insulation.
Avoid damage to
Conductor
Strands.
Figure 1 Figure 2 Figure 3
Figure 4
TABLE 1
RECOMMENDED TIGHTENING TORQUE FOR CONNECTORS**
Connector's
Maximum
Conductor Size
10-14 AWG
8 AWG
4-6 AWG
2/0-14
250-6
350-10
500-6
750-1/0
** Unless otherwise noted on
connector.
TABLE 2
RECOMMENDED TIGHTENING TORQUE FOR MOUNTING HARDWARE
Bolt Diameter
(inch)
1/4
5/16
3/8
7/16
1/2
5/8
WARRANTY: Thomas & Betts sells this product with the understanding that the user will perform all
necessary tests to determine the suitability of this product for the user's intended application. Thomas
& Betts warrants that this product will be free from defects in materials or workmanship for a period of
two (2) years following the date of purchase. Upon prompt notication of any warranted defect,
Thomas & Betts will, at its option, repair or replace the defective product. Misuse, misapplication or
modication of Thomas & Betts Products immediately voids all warranties.
Limitations and Exclusions:
THIS PRODUCT, AND IS IN LIEU OF ALL OTHER WARRANTIES EXPRESS OR IMPLIED,
INCLUDING BUT NOT LIMITED TO ANY IMPLIED WARRANTY OF MERCHANTABILITY OR
FITNESS FOR A PARTICULAR PURPOSE, WHICH ARE SPECIFICALLY DISCLAIMED. LIABILITY
FOR BREACH OF THE ABOVE WARRANTY IS LIMITED TO COST OF REPAIR OR REPLACEMENT
OF THE PRODUCT, AND UNDER NO CIRCUMSTANCES WILL THOMAS & BETTS BE LIABLE FOR
ANY INDIRECT, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES.
THE ABOVE WARRANTY IS THE SOLE WARRANTY CONCERNING
Steel
In.-Lbs. (Ft. - Lbs.)
72
132
228
360
480
660
Tightening
Torque
In.-Lbs.
(6)
(11)
(19)
(30)
(40)
(55)
35
40
45
50
275
375
375
375
Aluminum
In.-Lbs. (Ft. - Lbs.)
48
96
156
240
300
480
(4)
(8)
(13)
(20)
(25)
(40)
Loading...