Selection Guide
24 BLACKBURN MECHANICAL CONNECTORS
Conductors that can be used with the power
• Requirements of a specific apparatus may restrict
the number of conductors
• Usually a maximum of three adjacent standard
cross-sections in one space
• In general, the conductors connected to one
conductor space of a connector must be
of the same type
• Table values require careful installation
• We recommend use of ferrules when using
fine-stranded conductors
• After installation, check that all conductors
are pressed into a connection
—
Conductor table
Cat. no. AWG/kcmil 8 6 4 3 2 1 1/0 2/0 3/0 4/0 250 300 350 400 500 Figure
Diagrams Al
Cu
Cu
Cu
Al
Cu
Cu
Cu
Al
Cu
Cu
Cu
Al
Cu
Cu
Cu
Al
Cu
Cu
Cu
Al
Cu
Cu
Cu
Al
Cu
Cu
Cu
Al
Cu
Cu
Cu
Al
Cu
Cu
Cu
Figure 1
Figure 2
Figure 3
—
Power distribution blocks
Conductor table
• The nominal current of the power distribution
blocks must not be exceeded
• According to some installation standards, each
incoming and outgoing protection and neutral
conductor in a panel must have its own separate
power distribution blocks
• The conductor numbers below refer only to
industrially installed power distribution blocks
Cross-sections of conductors (AWG/kcmil) and
number of conductors/space. The conductor
numbers below refer only to industrially installed.