Magnum
1812.900A
9
2 RECEIVING, HANDLING AND
INSTALLATION
2.1 General
information
Magnum Air 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.
2.2 Suggested
tools
A large number of different tools are not required to
properly install and maintain Magnum circuit breakers.
The following tools are, however, suggested:
•
Flat blade screwdriver
•
Phillips head screwdriver
•
3/8” socket (rachet) wrench
•
10 mm socket
•
17 mm socket
•
Secondary wiring removal tool
2.3
Unpacking circuit breaker
Before beginning to unpack new Magnum 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 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 the Magnum 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.
On drawout circuit breakers shipped without a cassette,
two shipping clamps hook into the breaker side plates
and are held to the pallet with 4 lag screws (Figure 2-1).
Remove the lag screws and clamps. Save the screws and
clamps for future shipment of the breaker. On empty
cassettes, remove the 4 or 5 lag screws and/or machine
screws which pass through the floorpan of the cassette
holding it to the wooden pallet. On drawout breakers
shipped in a cassette, first remove the breaker from the
cassette using the levering mechanism and drawout rails.
After the breaker is removed the machine
screws passing through the floorpan can be removed. On
fixed breakers, remove the lag screws passing through
the mounting feet which hold the breaker to the pallet.
Figure 2-1: Shipping Clamps for Drawout Circuit Breaker
1. Shipping Clamp
Circuit breakers are designed to be easily lifted from the
wooden pallet using an appropriate lifting yoke and
overhead or portable lifting device.
2.3.1
Storing circuit breaker
If it is necessary to store a circuit breaker before
installation, do so in its original shipping container. Keep
the circuit breaker in a clean dry place. Ensure there is
ample air circulation and heat, if necessary, to prevent
condensation. It is very important that the circuit breaker
not be exposed to dirt or moisture.
NOTICE
A CIRCUIT BREAKER THAT HAS BEEN STORED FOR
ANY LENGTH OF TIME SHOULD BE OPERATED A
MINIMUM OF FIVE TIMES BEFORE IT IS PLACED IN
SERVICE.
1