8
User Manual
MN013016EN
Effective July 2022
Magnum PXR and Power Defense SB low
voltage power circuit breakers user manual
EATON
www.eaton.com
Qualified personnel
For the purpose of operating and maintaining low voltage power circuit
breakers, a person should not be considered qualified if the individual
is not thoroughly trained in the operation of the circuit breaker and
how it interfaces with the assembly in which it is used . In addition,
the individual should have knowledge of the connected loads .
For the purpose of installing and inspecting circuit breakers and their
associated assembly, a qualified person should also be trained with
respect to the hazards inherent to working with electricity and the
proper way to perform such work . The individual should be able to
de-energize, clear, and tag circuits in accordance with established
safety practices .
Other publications and documentation
In addition to this instructional booklet, other printed information and
documentation is available and supplied as appropriate . Additional
documentation for Magnum PXR and PD-SB circuit breakers is
available on the website at www .eaton .com/magnumpxr . This
is included, but not limited to, trip unit manuals and time/current
curves, accessory instructions, and renewal parts data .
MPS C 32
Circuit breaker type
MPS
= Magnum PXR standard and
double-wide frames
MPN
= Magnum PXR narrow and
double narrow frames
SPS
= PD-SB standard and
double wide frames
SPN
= PD-SB narrow and
double narrow frames
Interrupting
capacity
4
= 42,000 A
5
= 50,000 A
6
= 65,000 A
8
= 85,000 A
C
= 100,000 A
Frame size
08
= 800 A
12
= 1200 A
16
= 1600 A
20
= 2000 A
25
= 2500 A
30
= 3000 A
32
= 3200 A
40
= 4000 A
50
= 5000 A
60
= 6000 A
Figure 3. Typical Magnum PXR and PD-SB designation example
Section 2: Receiving, handling,
and installation
General information
Magnum PXR and PD-SB power circuit breakers, when supplied
as part of an assembly, may be shipped already installed in their
respective breaker compartments . Receiving and handling of this
equipment is addressed in an assembly instruction manual supplied
with the assembled equipment . This instruction manual applies to
only the circuit breakers .
Suggested tools
A large number of different tools are not required to properly
install and maintain Magnum PXR and PD-SB circuit breakers .
The following tools are, however, suggested:
•
Flat blade screwdriver
•
Phillips head screwdriver
•
3/8-inch socket (ratchet) wrench
•
10 mm socket
•
17 mm socket
•
Secondary wiring removal tool (
Unpacking the circuit breaker
Before beginning to unpack new Magnum PXR and PD-SB circuit
breakers, read and understand these directions . Following the
directions will ensure that no damage is caused .
Shipping containers should be inspected for obvious signs of rough
handling and/or external damage incurred during the transportation
phase . Record any observed damage for reporting to the
transportation carrier and Eaton, once the inspection is completed .
All reports and claims should be as specific as possible and include
the order number and other applicable nameplate information .
Every effort is made to ensure that Magnum PXR and PD-SB
circuit breakers arrive at their destination undamaged and ready
for installation . Care should be exercised, however, to protect
the breakers from impact at all times . Do not remove protective
packaging until the breakers are ready for inspection, testing, and/or
installation .
When ready to inspect and install a Magnum PXR or PD-SB circuit
breaker, carefully remove the banding straps and lift off the cardboard
box . Remove any additional packing material and internally packed
documentation . The circuit breaker and/or cassette are mounted to a
wooden shipping pallet .
