－13－
In the event of an electrical short circuit, grounding reduces the risk of electric
shock by providing an escape wire for the electric current. This pump is equipped
with a cord having a grounding wire with an appropriate grounding plug. The plug
must be plugged into an outlet that is properly installed and grounded in accordance
with all local codes and ordinances.
If power code is not equipped (option) then appropriate grounding shall be provided
upon installation.
ａ) Power cable selection standards
This vacuum pump single-phase alternating current 100-100V/100-120V (50/60Hz)
specifications (model：GHD-031A) or single-phase alternating current 200-240V
(50/60Hz) specifications (model：GHD-031B) sticks.
The power supply voltage is a model： GHD-031A (100-120V) time and a model：
The choice standards of the power supply cord are more different in GHD-031B
(200-240V).
The power cable selections standards are shown in a table 2.Do not fail to select
your power cable in accordance with the standards.
For a shape of the cable plug to be inserted in the pump motor power inlet, select
type IEC60320-C13.
Table2. Power cable selection standards
Supply
Voltage
Voltage
Rating
Current Rating
Temperature
Rating
100-120Ｖ
125V or more
10A or more instantaneous (5sec)
10A or more
200-240Ｖ
250V or more
10A or more instantaneous (5sec)
10A or more
70℃ or more
Install the fuse of 5A - 10A or circuit breaker in the branch circuit of the equipment
side.
ｂ)Precautions
b-1) Unplug-preventive hardware（Option）
Whenever you may operate the vacuum pump with your power cable, provide it
with the unplug-preventive hardware, which should be selected so as to fit
Caution Grounding instructions