33
User Manual
MN013016EN
Effective July 2022
Magnum PXR and Power Defense SB low
voltage power circuit breakers user manual
EATON
www.eaton.com
Figure 56. Typical cassette-mounted secondary wiring
Fixed type circuit breakers:
There are two secondary
connection options:
1. Without terminal block:
If a terminal block for customer use
is not required, the circuit breaker is supplied with the plug-in
connector (male and female) just described in the two previous
paragraphs . The plug-in connectors are joined and attached to
the top portion of the circuit breaker . The customer can plug
secondary wiring with crimp-on connectors into the back of the
plug-in connector; subsequently the connections to the circuit
breaker can be quickly joined or separated as required .
2. With terminal block:
For those customers preferring to wire to a
terminal block, terminal blocks with finger-proof hinged covers are
added to the secondary configuration just described for a fixed
circuit breaker “without a terminal block .” The terminal blocks are
wired to the plug-in connectors and also permanently attached
to the upper rear portion of the circuit breaker (
) .
A standard tool is available from the plug-in connector manufacturer
(AMP) to facilitate the removal of secondary wiring from a plug-in
connector, or contact Eaton for assistance (
) . The connector
halves must be separated to use this tool .
Figure 57. AMP secondary wiring removal tool
Connection diagrams
The connection diagrams for all Magnum PXR and PD-SB circuit
breakers using PXR trip units are shown in
through
.
Closed hinged
covers with
testing holes
Terminal blocks
Plug-in
connectors
