enphase IQ Combiner 5C

Section D - Installing the current transformers
Consumption CT installation
in grid-tied systems (load only conguration)
Risk of electrocution and equipment damage! Do not install CTs when
current is owing in the sensed circuit. Always install CT wires in the
terminal blocks before energizing the sensed circuit.
Consumption CTs are installed on the home loads panel when a site
needs to only monitor the consumption by the home loads.
Make sure that the main load center wires are de-energized until you
have secured the CT wires in the terminal blocks .
Clamp the red and black C1 CT on the load center feed wire Line 1
(matching the IQGateway’s “L1” voltage terminal) with the CT arrow
pointing toward the load (away from the grid).
Clamp the purple and brown C2 CT on the load center feed wire
Line 2 (matching the IQGateway’s “L2” voltage terminal) with the
CT arrow pointing toward the load (away from the grid).
Tighten all connections using a 5 in-lbs torque.
IQ Gateway Terminal Block
Not used Relay contacts
(if needed)
CU, C, AWG MIN
MEAS CAT III
OVC III
PD, B
OVC II
NLL
P
Digital Input
1234 NO
REF CCommon
Relay
C C C
Grid Utility meter
Wh
Main load
center
Production Consumption
Home loads
Purple
Brown
Black
Red
IQ Combiner 5/5C Quick Install Guide 34