Eaton Magnum SB Series Technical Product Manual page 56

Accessory devices and connections
Cassette lock
•
A cassette-mounted lock can be used in conjunction with
different interlocking schemes, such as main-tie-main .
The lock holds the breaker open in the CONNECTED position,
preventing it from being closed . Up to three lock cylinders can
be installed on one cassette . Eaton supplies the lock provisions
only . The customer is responsible for the locks, which can be
Kirk or Castell .
8
1
1
1
1
1
1
1
Cassette-mounted key lock
1
Pushbutton cover
•
Padlockable covers are available to limit access to the ON and
1
OFF pushbuttons . They can be installed with either or both
pushbutton covers in place .
1
1
1
1
1
1
1
1
1
ON–OFF pushbutton lockable cover plate
1
1
56
MaGnuM PRoDuct GuiDe CA013002EN—April 2017
Courtesy of NationalSwitchgear.com
Prevent close cover
•
All access to the ON pushbutton can be prevented by adding
the fixed prevent close cover to the pushbutton cover .
Lockout cover
•
When padlocked, a lockout cover maintains the OFF button in
the ACTUATED position, preventing breaker closure . .
Cassette safety shutters
•
Automatically operated insulating type safety shutters are
available for use with the drawout cassette . When a
drawout breaker is levered from the CONNECT position,
the shutters automatically close to cover the fixed primary
contacts . When the breaker is levered into the cassette, the
shutters automatically open, permitting primary connections
to be made .
Typical safety shutters in CLOSED position
Typical safety shutters in OPEN position
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