4–2 EPM 2200 POWER METER – INSTRUCTION MANUAL
CONSIDERATIONS WHEN INSTALLING METERS CHAPTER 4: ELECTRICAL INSTALLATION
• GE requires the use of Fuses for voltage leads and power supply and Shorting Blocks
to prevent hazardous voltage conditions or damage to CTs, if the meter needs to be
removed from service. CT grounding is optional, but recommended.
Note
The current inputs are only to be connected to external current transformers provided
by the installer. The CT's shall be Listed or Approved and rated for the current of the
meter used.
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.
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.
4.1.1 CT Leads Terminated to Meter
The EPM 2200 is designed to have Current Inputs wired in one of three ways. Figure 4-1: CT
leads terminated to meter, #8 screw for lug connection below, shows the most typical
connection where CT Leads are terminated to the meter at the Current Gills.
This connection uses Nickel-Plated Brass Studs (Current Gills) with screws at each end. This
connection allows the CT wires to be terminated using either an “O” or a “U” lug. Tighten
the screws with a #2 Phillips screwdriver. The maximum installation torque is 1 Newton-
Meter.
Other current connections are shown in Figures 4-2 and 4-3. A Voltage and RS-485
Connection is shown in Figure 4-4: Voltage Connection on page 4–6.
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