Installation - Fusing and Power Consumption
Part No.: 4418309_Rev09 Fusion4 MSC-L
Honeywell
Installation & Operation Manual
4 - 13
4.6 Fusing and Power Consumption
4.6.1 Fusing
4.6.1.1 Internal Fusing
The MSC-L provides internal fuses for the protection of the AC mains as
follows.
The CAN-PSF-MSC (Power supply) board - Converts the mains AC
voltage into three different DC voltages. See section
for more information. The CAN-PSF-MSC board has an
internal fuse to protect the external AC mains against any over
-
current condition or fault condition inside the MSC-L.
MSC-SHORTCUT-BOARD - The mains AC input, which is supplied
to the MSC-L is also routed to the external devices through the MSC-
SHORTCUT-BOARD. The fuses on the MSC fuse board deliver fuse
protected AC power to the external devices.