GE GEM-NM40OUT M, Owner'S Manual And Installation Instructions

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Without a breaker for current leakage will cause risks
of electric shock, fire or explosion.
Install a explosion-proof breaker for current leakage at the
power source to avoid the risk of the electric shock.
Do not use large-capacity fuses,steel wire,or copper wire.
Damaging the unit ,fire,smoke or explosion will be
caused otherwise.
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