4–2 EPM 9450/9650 ADVANCED POWER QUALITY METERING SYSTEM – INSTRUCTION MANUAL
CONSIDERATIONS WHEN INSTALLING METERS CHAPTER 4: ELECTRICAL INSTALLATION
To comply with UL standards, the meter case must be connected to a reliable protective
earth available within the installation area. For this connection use minimum #14 AWG
wire crimped to a ring terminal (3) with a dedicated tool. Fasten the ring terminal (3) to the
lower left slot of the meter case with minimum #6 metal screw(1) and star washer (2), as is
shown in Figure 4.1.
The UL Classification of the meter is Measurement Category III, Pollution Degree 2.
Figure 4-1: Meter Case’s Earth Ground Connection
Note
IF THE EQUIPMENT IS USED IN A MANNER NOT SPECIFIED BY THE MANUFACTURER, THE
PROTECTION PROVIDED BY THE EQUIPMENT MAY BE IMPAIRED.
Note
THERE IS NO REQUIRED PREVENTIVE MAINTENANCE OR INSPECTION NECESSARY FOR
SAFETY. HOWEVER, ANY REPAIR OR MAINTENANCE SHOULD BE PERFORMED BY THE
FACTORY.
Note
DISCONNECT DEVICE: A SWITCH OR CIRCUIT-BREAKER SHALL BE INCLUDED IN THE END-
USE EQUIPMENT OR BUILDING INSTALLATION. THE SWITCH SHALL BE IN CLOSE PROXIMITY
TO THE EQUIPMENT AND WITHIN EASY REACH OF THE OPERATOR. THE SWITCH SHALL BE
MARKED AS THE DISCONNECTING DEVICE FOR THE EQUIPMENT.
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