3
1. SAFETY PRECAUTIONS
Warnings and Cautions
WARNING
Install in a location free of flammables and explosives.
Never install or operate unit in a flammable or explosive gas atmosphere. Unit is NOT fire
or blast resistant. Simply switching earth leakage breaker (ELB) "ON" or "OFF" can
produce a spark, which can then be relayed during operation, causing fire or explosion
when near flammable or explosive fluids, chemicals or gases/fumes.
See "15. LIST OF HAZARDOUS SUBSTANCES" (P.67) for information on flammable and
explosive gases.
Ground
wire MUST be connected properly (WG251)
Connect power cable to a grounded outlet in order to avoid electric shock.
Never connect ground wire to gas lines, water pipes, telephone grounding lines or
lightning rods. Doing so may result in fire, electric shock or equipment malfunction.
Never insert multiple plugs into a single outlet. Doing so may result in power cable
overheating, fire or drop in voltage.
Connect to grounded outlet
Grounded outlet
When no ground terminal is found
Contact original dealer of purchase
for location-specific electrical
requirements.
Ground
wire MUST be connected properly (WG1001)
If no ground terminals found, contact original dealer of purchase for location-specific
electrical requirements.
Securely connect to a distribution board.
No power plugs or connectors of any kind are included with WG251/1001. When using a
power plug, use a plug that meets the voltage and electrical capacity.
Core color
Wiring on
distribution board
White Neutral
Black Live
Green Ground
Never connect ground wire to gas lines, water pipes, telephone grounding lines or
lightning rods. Doing so may result in fire, electric shock or equipment malfunction.
Grounding prong
Grounded plug