PDM20 Series
-5-
Installation
Hold the bottom of the SPD when install or move the SPD, cannot just hold the shell to
prevent the injured or broken SPD.
SPD must be far away from heat source, flammable and explosive objects, and installed on
metal or other nonflammable objects.
If the SPD is mounted in a protective cabinet, the cabinet need to set vents to ensure ambient
temperature is below 40℃; otherwise it may be damaged because of high temperature.
Wiring
Ensure only qualified personnel to operate. Otherwise it can cause an electrical shock or
damage of the SPD.
Make sure the SPD is isolated from power supply by the circuit breaker. Otherwise it may
cause a fire.
Make sure that the ground terminal is grounded correctly. Otherwise it can cause an
electrical shock.
Please do not touch the main circuit terminal, and the main circuit terminals of the SPD do
not contact the shell. Otherwise it may cause an electrical shock.
Before connecting, make sure that the SPD rated voltage, phase number confirm to input
voltage, phase number; Otherwise it may cause fire or personal injury.
Never connect the AC input power supply to output terminals V, U, W; Otherwise the SPD
will be damaged and the guarantee is invalid.
Never perform with stand voltage test of the SPD, otherwise it may cause a damage to the
SPD.
The main circuit wiring of the SPD and the control loop wiring should be separated or
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