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Three structure widths offer greater capacity
in less space
The Magnum has been engineered to fit into three
space-saving structure widths for 3-pole and three more
for 4-pole units. The Magnum breaker provides
opportunities for more circuit breakers in less space.
Reduced space means greater cost savings regarding
assembly time, number of assembly structures, and final
installation area.
Through-the-door design ensures user-friendly
operation, visual indication, and optimum safety
Through-the-door design provides clear visual and
physical access to the trip unit and ALL breaker controls
and indicators … including open and close buttons, the
open/close indicating flag, the charging handle, breaker
interlock, and the spring charge/discharge flag. Even
breaker levering is accomplished with the breaker
compartment door closed.
For safety and security, the breaker compartment allows
three breaker positions with the door closed: connect,
test, and disconnect.
Extension rails can be padlocked to prevent a breaker
from being inserted into a cell, a lock-out requirement
when maintenance is being performed. This helps
assure personnel safety and guarantees that no one can
install a breaker and energise a circuit on which a
person may be working.
Through-the-window accessories
Shunt trip
-
Provides remote controlled circuit breaker
opening when energised by a voltage input.
Spring release
-
Remotely closes the breaker when its
coil is energised by a voltage input.
Undervoltage release (UVR)
-
Trips the breaker remotely
when an existing voltage signal is lost or drops below
an established threshold.
Internal Accessories
Auxiliary switch
-
Provides the capability to remotely
indicate if the breaker is open or closed. Up to six N/O
and six N/C auxiliary contacts are available for
customer use.
Overcurrent trip switch (bell alarm)
-
A set of N/O and N/C
contacts that indicate when a breaker trips.
Electrical operator
-
An electric motor, internally mounted
in the circuit breaker, that charges the closing springs
automatically, facilitating remote or local closing.
The right choice for low voltage assemblies … anywhere in the world
In the withdrawn position, the
breaker can be removed from
the cell on integral extension
rails.
Finger-proof (IP20)
secondary points with easy
access for customer wiring.
All breakers can be padlocked
to secure the breaker in all
three positions. An optional
key interlock (not shown) can
also secure the breaker in
each position.
The drawout breaker can be
conveniently racked in or out,
stopping at the various
positions with the door closed.
The breaker spring charging
handle is designed with
sufficient space for operation
even with a gloved hand.