SURGE ARREST OR installation and 2 Pole, 120/240 VAC Safety Instructions 50/60Hz WARNING: FAILURE TO FOLLOW THESE INSTRUCTIONS COULD RESULT IN DEATH, PERSONAL INJURY OR PROPERTY DAMAGE. To be installed by a qualified electrician only. 2. install surge arrest or on a single phase 120/240 VAC grounded power supply system only. 3. WARNING: NEVER WORK ON SYSTEM WHEN ENERGIZED.