John,
see the specs for the SSAC PLMU Series 3 Phase Voltage Monitor at:
www.ssac.com/pp1.htm select the PLMU link
spec sheet says that the 2 amp fuses are "recommended" not required ???
I think that if I run 14Ga. wire from a 15 amp breaker to the Monitor, that in the event of a short, the breaker would trip before the 14ga. wire is damaged...
the monitor may not survive but this setup should prevent the monitoring lines from turning into flaming ropes. Again if there is a mishap...
