Bticino Megabreak MP4 Series, Installation Manual

Page: 46 / 64

46
M8TA - M8TA63 (factory assembled)
External current trasformer for earth fault and neutral protection (not disconnected).
It’s possible to use it with 3 poles breakers and is installed on the neutral, in order to guarantee the
following protections without disconnecting it in case of breaker trip :
- neutral protection
- earth fault protection (only for version MP4 LSIg and MP6 LSIg)
The device M8TA can works with nominal currents up to 4000A (is not available on Megabreak
automatic breakers Megabreak 2500 42kA), while the device M8TA63 can works only on Megabreak
automatic breakers Megabreak 6300 up to 6300A.
M8ALIM12
External power supply module
The accesory allows an uninterrupted supply of electronic protection unit, even if the circuit brea-
ker is switched off/tripped.
The accessory allows to power 1 protection unit MP6 or up to 4 protection units MP4.
M7TICPROG
Module adjustable contacts
This module is an accessory used to manage other external devices for signal/control.
Must be related to the protection unit MP4 or MP6, which allow its adjustment, and must be con-
nected to the terminals on the upper part of the breaker.
M8COM
(factory assembled)
Communication option
Factory assembled this option allows to connect the breaker to a MODBUS RS485 supervision system.
12. Accessories