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AC power in a vehicle especially in a mobile application where AC power from the grid is not
readily available is an attractive solution but brings with it certain safety and operational issues.
Within a automotive vehicle application and conformity to applicable safety legislation requi-
rements for the user safety of connected AC powered tools and equipment to / from a mains
230VAC power source generated by an DC to AC power inverter installed in a vehicle, Connec-
tion and operation of such tools and equipment outside the vehicle where a high safety hazard
and potential risk of electric shock to the user would exists than an RCD (Residual Current
Device) or a SAMLEX AC Isolation Guard must be correctly installed inline of the 230VAC inverter
and AC electrical system within the vehicle, be regularly tested and conform to all relevant safety
legislation and certification where applicable.
Be fully operational at all times as a safety protection device both whilst connected and whilst
in use outside the vehicle.
NOTE:
If an RCD is used in the vehicle AC installation to / from a DC to AC power inverter than a GEC
(Grounding Electrode Conductor) MUST be installed and always used as part of the AC power
system for safety requirement of electric shock hazard. This MUST be installed at all times the
vehicle is stationery and tested for correct and safe operation of Ground – Earth . This is only
to be performed and confirmed by a qualified AC electrician with the correct knowledge and
calibrated test equipment.
This is not always a practical option and qualified staff not always available therefore SAMLEX
have developed the advanced solution to this issue of safety with the SAMLEX IG-25 and IG-
25C.
NOTE:
If The SAMLEX IG Series Isolation Guard is used in the vehicle AC installation to / from a DC to
AC power inverter than a GEC (Grounding Electrode Conductor) is not required, A major safety
and time saving benefit in the installation and operation of the DC to AC vehicle power system.
The SAMLEX Isolation Guard is a fully automatic safety device that measure the electrical resis-
tance in the vehicle AC power system wiring and will instantly switch OFF the AC power before
a dangerous situation for the user can occur.
INTRODUCTION
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