Cradle mechanical accessories

Masterpact NT/NW
Preventive - maintenance operation

Division - Name - Date - Language 2
Masterpact NT/NW
Adaptation, replacement policy
Definition
•Adaptation: when a new item is installed on the breaker
•Modification : change the performance of the breaker ( either
mechanical or electrical
•Replacement : exchange a component by a new one
Adaptation by the customer
•breaker electrical accessories:
–auxiliary contacts OF/ SDE1
–ready to close contact PF
–Motor mechanism MCH
–non communicating MX/XFMN
–Electrical closing push button BPFE
–Delay block for MN

Division - Name - Date - Language 3
•breaker mechanical accessories:
–operation counter
–breaker locking devices ( key and padlock)
–Disconnectable front connectors
–Fixing brackets
–Door frame
–Transparent front cover
–Door cut out screen
–Interlock : 2S + 1Rg, 2S + 1C, 3S
–Interlock cable 2NW/NT
–Interlock rods 2NW/2NT
–Cable door interlock NT/NW
–Earthing device kit

Division - Name - Date - Language 4
•Cradle electrical accessories
–Cradle position contacts CE CT CD
–Combined connected closed contacts EF
–Levers for additional cradle position contacts
•Cradle mechanical accessories
–Cradle locking in disconnected position
–Cradle locking in all positions
–Racking interlock
–Insulating shutters (+ locking)
–Mismatch protection
–Terminal shield

Division - Name - Date - Language 5
•Trip units and accessories, communication
–Cradle communication module
–Vigi sensor
–Neutral protection CT
–External power supply
Modification by the customer
•Breaker mechanical accessories
–Breaker main connections
•Cradle mechanical accessories
–Cradle main connections
•Trip units and accessories, communication
–Rating plugs