Overview

This guide describes one method of installing the components in the 120V PEK. Remember that parts may be used in a variety of ways to meet specific installation needs. The PEK comes unassembled.

Prerequisites

Before beginning, check that you have all of the correct parts:

Instructions

Step 1:  Check the DIN rails

The two lengths of DIN rail should already be mounted in the enclosure. Check to make sure both DIN rails are tightly fastened in place.

Step 2:  Assemble the terminal block

Connect the 5 gray terminal block pieces to the DIN rail. To connect the terminal block pieces to the DIN rail, hook the rounded connector under one side of the DIN rail and then press down firmly on the other side until the piece snaps into place as shown below.

Line the pieces up against one another to form a power block. Use the gray cover plate to cover the exposed end. Add a terminal end stop to either side of the terminal block.  Don't fully tighten the screws on the end stops as you may need to adjust them later.

Step 3: Install the 50VA Transformer

Connect the 50VA transformer to the same DIN rail as the terminal block. Orient the primary side (colored wires) toward the terminal block. The black wire on the primary side is the Neutral line (marked COM). 

Insert the black and brown wires on the primary side of the transformer into the terminal block as shown in the photo. Use wire nuts or electrical tape to cover all exposed ends of the unused wires on the primary side of the transformer. Cover each unused wire separately, do not tie them together.

Step 4: Connect the 120VAC receptacle to the opposite DIN rail.

Insert the white/black wires from the secondary side of the potential transformer to the 120VAC receptacle. The black and white striped wire connects to the "+" or "HOT" position and the plain white wire connects to the "-" or "NEU" or neutral position.  

Use a small flathead screwdriver as shown to depress the port tabs, insert the wire end then release to secure.

Step 5: Attach the optional powered hardware to the DIN rail. Cell routers sold by eGauge include an installed DIN clip.

Step 6: Attach the eGauge above the cell router using the eGauge DIN rail mounting kit. The mounting kit can be used to orient the eGauge as "flat" mount as shown in the image, or the optional L bracket can be used to mount the meter vertically with the CT ports facing outward to the front of the enclosure. For more detailed information regarding assembly please see: DIN Rail Mounting Kit

Step 7: Connect the power adapter for the cell router (or other equipment) to the 120VAC receptacle and the Ethernet cable to the eGauge.

Step 8: Connect eGauge AC Voltage 

Cut lengths (approximately 7” long) from each section of colored wire. Use these to connect the five pin power plug on the eGauge to the terminal blocks. For U.S. 277/480V NEC color coding, the white wire should connect to the “N” terminal, brown to “L1”, orange to “L2”, and yellow to “L3”.

Step 7: Connect Panel Voltage to the PEK

Wire the terminal block to a breaker or fuse block of the distribution panel being measured making sure to keep the Neutral connected to the same terminal block between the panel, the eGauge and the step-down transformer.

Example Line Diagram

Additional Resources

Assembling the eGauge Mounting Kit