1
‘M-PACT’
Table of Contents
SECTION 1 ACB ................................................................................................................................................................................................. 2
Introduction ...................................................................................................................................................................................................... 2
Installing ‘M-PACT’ Circuit Breakers................................................................................................................................................................. 3
Operating ‘M-PACT’ Circuit Breakers ............................................................................................................................................................... 3
Secondary Circuit Isolation............................................................................................................................................................................... 3
Withdrawal of ‘M-PACT’ Circuit Breaker ........................................................................................................................................................... 3
Removal of Circuit Breaker from cassette......................................................................................................................................................... 4
Mounting Circuit Breaker into Cassette............................................................................................................................................................. 5
Removing Circuit Breaker Facia ....................................................................................................................................................................... 5
‘M-PACT’ ancillary equipment - Fitting instructions............................................................................................................................................... 6
Pushbutton padlocking ..................................................................................................................................................................................... 7
Circuit breaker security padlocking ................................................................................................................................................................... 7
Safety shutters ................................................................................................................................................................................................. 7
Installing Carriage Switch ................................................................................................................................................................................. 8
To fit Door Interlock .......................................................................................................................................................................................... 9
Busbar/Cable Earthing ..................................................................................................................................................................................... 9
To fit mechanical trip alarm............................................................................................................................................................................. 10
Mechanical Operations Counter ..................................................................................................................................................................... 10
Breaker mis-insertion stop.............................................................................................................................................................................. 10
Two-Breaker cable interlock. .......................................................................................................................................................................... 11
Routine inspection – Fixed or withdrawable ACB (types A, D & H)..................................................................................................................... 11
Recommended Tool Kit for Maintenance and Modification of M-PACT Air Circuit Breaker ................................................................................. 12
M-PACT Trouble Shooting................................................................................................................................................................................. 12
SECTION 2 PROTECTION UNITS .................................................................................................................................................................... 13
M-PRO 17 Protection Unit.................................................................................................................................................................................. 13
Front Panel..................................................................................................................................................................................................... 13
Protection Features ........................................................................................................................................................................................ 14
Operator Controls........................................................................................................................................................................................... 16
M-PRO 20, 30 & 40 Protection Units.................................................................................................................................................................. 17
Front Panel..................................................................................................................................................................................................... 17
Navigation table................................................................................................................................................................................. 18
Menu Structure............................................................................................................................................................................................... 19
PAMM - A unique security feature .................................................................................................................................................................. 20
Protection Features ........................................................................................................................................................................................ 20
Operating M-PRO 20/30/40............................................................................................................................................................................ 27
M-PRO Test Box................................................................................................................................................................................................ 29
Neutral Rogowski Coil Mounting Details............................................................................................................................................................. 30
M-PRO Optional Accessories............................................................................................................................................................................. 32
SECTION 3 M-PACT Wiring Diagram ................................................................................................................................................................ 33
Connections for M-PRO 40............................................................................................................................................................................. 34
Connections for M-PRO 30............................................................................................................................................................................. 34
Connections for M-PRO 20............................................................................................................................................................................. 34
Connections for M-PRO 17............................................................................................................................................................................. 34
THE COMPANIES POLICY IS ONE OF CONTINUOUS DEVELOPMENT AND IMPROVEMENT OF IT’S
PRODUCTS AND THEREFORE THE RIGHT IS RESERVED TO SUPPLY PRODUCTS WHICH MAY
DIFFER FROM THOSE DESCRIBED AND ILLUSTRATED IN THIS PUBLICATION.
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