12
R E LI AG E A R
®
N D A NS I N A R ROW DE S IG N ME TA L- CL A D S WITCHG E A R
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12
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Indoor installation
All Vmax/A circuit breakers of the same rating
are interchangeable.
Circuit breakers have two positions in the housing
— TEST/DISCONNECTED and CONNECTED.
1. The DISCONNECT position disengages the main
disconnecting devices and the control contacts
on the breaker. The primary contacts are a safe
distance from the stationary contacts located
in the circuit breaker compartment.
2. The TEST position is available by connecting
the umbilical plug to its receptacle in the
switchgear. The TEST position disengages
the main disconnecting devices. This position
allows operation of the circuit breaker for
testing.
3. The CONNECTED position engages the main
and control disconnecting devices on the
breaker.
Mechanical interlocks prevent moving a circuit
breaker from one position to another unless the
circuit breaker is open. The interlocks also prevent
closing of the breaker between positions.
Locking out the circuit breaker
The circuit breaker may be locked out by padlocking
both the racking port and door handle. It is
recommended to use flat lockout hasps on both
provisions (figure 10).
Insertion
1. Open the breaker module door completely
(figure 11). Door stops, if available, can be
used to keep the door in position when
operating the equipment.
2. Use the lift truck for breakers to be installed
in the upper compartment, or non-roll on floor
equipped breakers in the lower compartment.
With the lift truck platform at ground level and
the foot brake engaged (figure 12), push the
interlock release handles on the breaker
inward and roll the breaker onto the lift truck.
Roll completely onto the platform until the
locking tabs engage the locking slot (figure 13,
figure 14).
3. Raise the lift truck platform slightly
(approximately 1") by cranking the winch or
stepping on the foot pedal (figure 15, figure 16).
Release the foot brake and push the lift truck
towards the breaker cubicle (figure 17).
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10 Isometric view
of circuit breaker
door and available
lockout provisions
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11 Breaker module
with open door
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12 Lift truck foot
brake and release
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11
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10
Lockout provisions
Foot brake
release
Foot brake
Summary of Contents for ReliaGear ND
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