Installation Guide

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F-173
Connectors & Grounding — Blackburn
®
Mechanical Connectors
Anti-Rotational Connectors
Fig. 1 Fig. 2
Anti-Rotational Connectors
Blackburn
®
Anti-Rotational Connectors are designed with a rib on
the bottom that keeps the connectors from turning, so there’s no need
to apply excessive torque and there’s no danger of loosening connectors.
The unique “no-turn” rib provides a secure connection that eliminates
the conductor pinching that results from connector movement.
The “no-turn” design solves a unique problem for electricians and
installers. Larger conductors tend to get damaged in over-torque
conditions, and connectors are prone to loosen in applications where
there is vibration, such as motor loads.
Inspectors and local standards boards are requiring electricians
and installers to make provisions to eliminate these conditions,
and Blackburn
®
Anti-Rotational Connectors are the solution.
• Unique bottom rib keeps connector from turning
• Eliminates the need for excessive torque, which
can damage large conductors
• Prevents connector loosening, even in heavy-
vibration applications
“No-turn” design keeps
connector securely in place —
even under vibration.
CAT. NO. WIRE RANGE BOLT HOLE (IN.)
DIMENSIONS
FIG. A B C D E F G H M N
ADR21-AR 2/0–14 AWG
1
⁄4 1.470 .600 .790 .190 .200 .438 .094 .620 .267 .453 1
ADR30-AR 300 kcmil–6 AWG
7
⁄16 2.000 1.000 1.120 .250 .200 .468 .094 1.000 .330 .656 1
ADR35-AR 350 kcmil–6 AWG
5
⁄16 2.250 1.120 1.125 .250 .200 .485 .094 1.120 .408 .719 1
ADR60-AR 600 kcmil–2 AWG
1
⁄2 3.120 1.500 1.560 .440 .200 .720 .094 1.380 .408 .938 1
ADR35-21-AR 350 kcmil–6 AWG
3
⁄8 2.880 1.500 1.250 .250 .200 .875 .094 1.120 .563 .719 2
ADR60-21-AR 600 kcmil–2 AWG
1
⁄2 3.120 2.400 1.560 .440 .200 .555 .094 1.380 .531 .938 2
G
E
D
A
M
N
B
F
H
C
G
E
D
M
N
B
F
H
C