Voltage Inputs; Current Inputs; Signal Ground Input; Connectors Location - Satec expertmeter EM720 Installation Manual

Voltage Inputs

There are 3 AC Y-connected voltage inputs of 480V (phase-to-phase) and neutral, via Main Terminal
Block.
Copper wiring 2.5 – 6 mm2 (10 AWG) should be used.
EM720
The Power Supply Inputs are the same as the Voltages Inputs

Current Inputs

There are 4 current inputs up to 50A, connected to external CT's via Main Terminal Block.
Copper wiring 2.5 – 6 mm2 (10 AWG) should be used.

Signal Ground Input

For Transient measurements, connect Signal Ground (SG) Input to Ground via Main Terminal Block, if
voltage neutral is isolated.
Copper wiring 2.5 – 6 mm2 (10 AWG) should be used.
If voltage neutral is grounded, the Signal Ground Input should be connected to Voltage neutral Input

Connectors location

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F i g u r e 4 : E M 7 2 0 C o n n e c t o r s v i e w
Chapter 2 Installation