
Masterpact™ NT and NW Universal Power Circuit Breakers
Accessories
61
05/2014
© 2000–2014 Schneider Electric
All Rights Reserved
Miscellaneous Accessories
Mechanical Operation Counter (CDM)
The mechanical operation counter (CDM) registers the total number of
operating cycles. One CDM is installed per circuit breaker.
Shutter and Shutter Lock
The shutters automatically block access to the
main disconnects when the circuit breaker is in the
disconnected, test, or fully withdrawn position.
The shutter lock is used to prevent connection of
the circuit breaker or to lock the shutters in the
closed position.
Not available on cradles with ArcBlok technology.
Door Escutcheon (CDP)
These door escutcheons provide a frame and seal for the circuit breaker.
Transparent Cover (CCP) for Door Escutcheon
The cover is hinged-mounted and locked with a milled head, and
is designed to be installed on the door escutcheon.
Figure 15: Door Escutcheons
Mechanical
Operation
Counter (CDM)
Shutter Lock
UL
®
Circuit Breaker Shutter
Door Escutcheon (NW Drawout)Door Escutcheon (NW Fixed)
Transparent
Cover (CCP)
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