MAIN TENANCE
The key can be removed in the open or closed
position of the breaker.
Inspection
Push the trip button and turn key to the
unlocked position to free the breaker trip
button.
The key is not removable in this
pos it ion.
Maintenance
locked position.
The key is then removable
The device is non- adjustable.
Check for
and the breaker is locked in the trip-free
loose bolts and nuts only.
position.
Replace key and rotate to the un-
locked position to free breaker trip button.
The key is also removed in this position.
i,
Maintenance
The device is non- adjustable.
Check for
loose bolts only.
KEY INTERLOCK ATTACHMENT
The key interlock (Figure 18) closed mounts
on the right side of the operating mechanism
frame.
When the key interlock attachment is
furnished, the key lock attachment cannot be
supplied.
With the key interlock attachment
the key cannot be removed unless the breaker
is locked in the open position.
Inspection
Push the trip button and turn key to the
locked position.
The key is then removable
and the breaker is locked in the trip-free
position.
Replace the key and rotate to the
30
RECTIFIER UNIT FOR A-C UNOERVOLTAGE AND
A-C ELECTRIC LOCKOUT ATTACHMENTS
When an a-c undervoltage attachment or an
a-c electric lockout attachment or both are
required, a RECTOX unit is mounted underneath
the breaker platform under the undervoltage
device as shown in Figure 19.
An auto-trans
former is provided in the unit so that the
common voltages for 60 cycles and 25 cycles
can be connected to the appropriate terminal
on the unit.
A terminal block is mounted on
the rectifier unit to facilitate all wiring.
Inspection
There are no moving parts.
Make certain
a-c incoming leads are connected to proper
terminals.
Maintenance
Check for loose connections.
I. B. 35- 240-1
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