Fuses - ETC Matrix II Installation Manual

Fuses

The fuse protection employed in the rack provides a single 63A Siemens type D02 for each module
position, and three 25A Siemens type D02 fuses for the processor. The module fuses limit the
maximum current available to each module to 63A. The three processor fuses are located at the top
row of the fuse panel on both the 1.6m and 2m high racks. In addition, each module incorporates a
15A 32mm A/S fuse per dimmer or switch power section.
Simplified schematic diagram of the circuit protection route from main supply breaker
through the Matrix II busbars to a module RCBO and channel fuse to the output load.
Note:
12
Any custom module with 4x5kW capacity is restricted to the module maximum
capacity rating of 80A. This means that although the module has four circuits,
each with a maximum rating of 5kW (21.7A at 230V), if a fully-loaded 4-
channel 5kW module is used to its full capacity (4 channels x 21.7A =86A) it
will exceed the module's 80A fuse rating.
Matrix Mk.II Rack Installation Manual version: 2.0