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 (Figure 16 and
Figure 17).
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 (Figure 57). 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 Figure 58 through Figure
63.
Closed hinged
covers with
testing holes
Terminal blocks
Plug-in
connectors
To Next Page
Loading...
