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E154713
4-9
4: Electrical Installation
Electro
Industries/GaugeTech
The Leader In Power Monitoring and Smart Grid Solutions
Electro
Industries/GaugeTech
The Leader In Power Monitoring and Smart Grid Solutions
4.5.1: Voltage Inputs
Select a wiring diagram from Section 4.6 that best suits your application and wire the
meter exactly as shown. For proper operation, the voltage connection must be main-
tained and must correspond to the correct terminal. Program the PT ratios in the
Device Profile section of the Communicator EXT
TM
software; see the
Communicator
EXT
TM
4.0 and MeterManager EXT Software User Manual
for details.
4.5.1.1: Wiring the Voltage Inputs
• The cable required to terminate the voltage sense circuit should have an insulation
rating greater than 600VAC and a current rating greater than 0.1A.
• Wire type: Solid or stranded
• Wire gauge: 12-24 AWG for either solid or stranded wire
• Strip length: 7-8mm
• Torque: 5 Lb-In
4.5.1.2: Fusing the Voltage Connections
• For accuracy of the readings and for protection, EIG requires using 0.1 Amp rated
fuses on all voltage inputs.
• The Nexus® 1500+ meter allows measurement up to a nominal 347VAC phase to
neutral and up to 600VAC phase to phase. Potential Transformers (PTs) are
required for higher voltages to insure proper safety.
• Use a 4 Amp Slo-Blo fuse on the power supply for control power, for example, UL
approved Littelfuse part number FLQ4.
4.5.2: Wiring the Vaux Input
The voltage auxiliary (Vaux) connection is an auxiliary voltage input that can be used
for any desired purpose, such as monitoring two different lines on a switch. The VAux
voltage rating is the same as the metering voltage input connections.
4.5.3: Ground Connections
The meter's PE GND terminal should be connected directly to the installation's protec-
tive earth ground. Use AWG#12/2.5mm
2
wire for this connection.
Содержание Shark 100T
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