1 . Connection
3
Diagrams
12.4 Auxiliary Supply
The
should ideally be powered from a dedicated supply, however it may be
instrument
powered
signal source, provided the source remains within the limits
from the
of the chosen auxiliary voltage.
12.5 Fusing
It is recommended that all voltage lines are fitted with 1 amp HRC fuses.
12.6 Earth/Ground Connections
For safety reasons, CT secondary connections should be grounded in accordance with local
regulations.
65
SINGLE PHASE
DIGITAL METERING SYSTEM
P1 S1
L N
AUX
SUPPLY
L
N
L
O
A
D
2
3
Summary of Contents for mfm 3480
Page 2: ......