enphase CT-200-SOLID User manual

QUICK INSTALL GUIDE
Installing Enphase 200 A Production CTs
Use this instruction with the Enphase Envoy S Metered Quick Install Guide or IQ Gateway Quick Install Guide to install Enphase production
monitoring current transformers (CTs). The Enphase Envoy S Metered or IQ Gateway uses this 200 A solid-core CT for monitoring solar
production current. This ANSI C12.20 compliant CT performs revenue-grade metering with an accuracy class of 0.5%. Rated at Pollution
Degree 3, you can use the CT inside electrical equipment in residential or harsh, industrial conditions. Read and follow all warnings and
instructions in this guide and the Quick Install Guide included with your Gateway and available at: enphase.com/support.
INSTALLATION
For more information, refer to the Envoy S Me-
tered or IQ Gateway Quick Install Guide which
is included with your gateway or available at:
enphase.com/support.
Preparation
A ) If not already done, turn off
the power to the PV system.
Remove any pre-installed Production CT
A ) Remove the line 1 conductor of the solar production circuit to which
the CT is connected.
B ) Remove the existing CT.
Install the Production CT
A ) Locate the arrow on the CT label.
B ) Refer to the diagram on the reverse of this document for wiring.
NOTE:Do not pass conductors from AC battery branch circuits through
the Production CT. This will distort production readings.
C ) Install the CT on Line 1 of the solar production circuit with the arrow
pointing towards the load (away from the solar array).
• For Envoy S Metered, Line 1 matches the “A” voltage terminal
• For IQ Gateway, Line 1 matches the “L1” voltage terminal
D ) For an Envoy S Metered, connect the white wire to the “IA•” terminal.
For an IQ Gateway, connect the white wire to the left “P1” terminal.
E ) For an Envoy S Metered, connect the blue wire to the “IB•” terminal.
For an IQ Gateway, connect the blue wire to the right “P1” terminal.
F ) Tighten the terminal block screws to 5 in-lbs.
G ) Close and secure the terminal block door of the Gateway.
H ) Turn on the PV system.
SAFETY
SAFETY AND ADVISORY SYMBOLS
+DANGER: This indicates a hazardous situation, which if not avoid-
ed, will result in death or serious injury.
✓NOTE: This indicates information particularly important for opti-
mal system operation. Follow instructions carefully.
SAFETY INSTRUCTIONS
+DANGER: To reduce the risk of electric shock, always open or
disconnect the circuit from the power-distribution system (or
service) of the building before installing or servicing the current
transformers.
+DANGER: Risk of electrocution! 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.
+DANGER: If equipment is used in a manner not specied by
Enphase Energy, the protection provided by the equipment may
be impaired.
+DANGER: Risk of electric shock. Be aware that installation of
this equipment includes the risk of electric shock. If you wire the
IQ Gateway or Envoy S at the subpanel, always de-energize the
subpanel before beginning.
+DANGER: Risk of electric shock. Risk of re. Only qualied per-
sonnel should troubleshoot, install, or replace the CTs.
✓NOTE: Because of variances in switchboard design and main pow-
er feed, there may not always be enough space to install CTs.
✓NOTE: Do not install the CTs in a switchboard where they exceed
75% of the wiring space of any cross-sectional area within the
equipment.
✓NOTE: Perform all electrical installations in accordance with all
national and local electrical codes.
✓NOTE: Restrict installation of current transformers in an area
where they would block ventilation openings, or in the area of
breaker arc venting.
✓NOTE: Not suitable for Class 2 wiring methods and not intended
for connection to Class 2 equipment.
✓NOTE: Secure current transformer and route conductors so that
they do not directly contact live terminals or bus.
✓NOTE: When wiring the Envoy S Metered or the IQ Gateway for
production and consumption metering, be sure to install the cur-
rent transformers (CTs) exactly as described for your application.
✓NOTE: When installing CTs, it is important to match CT and sense
voltage phases. Be sure to consistently identify the two AC lines
at three points: the main load center feed, the Gateway, and the
solar production circuit breaker. Wire colors (typically black and
red) may not always consistently identify L1 and L2. If in doubt,
use a multimeter to check.
✓NOTE: Only run active conductors through the CT. The CT can
monitor multiple active conductors. You may run more than one
wire through the CT if all wires are on the same phase and they t
the opening in the CT.
SPECIFICATIONS
SPECIFICATION CT-200-SOLID
CT type Solid core
CT accuracy (error rate) <0.5%
Max primary supported current 200 A
Turns ratio 2,000
Pollution degree 3
Dimensions 1.93" diameter
Aperture 0.76" diameter
Primary voltage (range) 250 VAC
Frequency 60 Hz (45–66 Hz)
Operating temperature −40°C to 65°C
Humidity 95%
Pollution degree 3
Compliance RoHS, UL 2808, ANSI C12.20
Enphase customer support: enphase.com/en-us/support/contact © 2023 Enphase Energy. All rights reserved. Enphase, the e and CC logos, IQ, and cer-
tain other marks listed at https://enphase.com/trademark-usage-guidelines are trade-
marks of Enphase Energy, Inc. in the US and other countries. Data subject to change.
(Model: CT-200-SOLID)
NOTE: The IQ Combiner ships pre-installed with this CT. However, this SKU can be used for replacement in case of damage in eld.

Load Center
To Grid
From PV System
Production CT The arrow must point toward the load — away from the solar array.
IQ Envoy Terminal Block
Relay contacts (if needed)
L1: black
L2: red
N: white
white
blue
white
blue
Not used
white
blue
Consumption CTs The arrows must point toward the load — away from the grid.
P1 C1 C2
1 2 3 4 NO
Ref
Common
C
Digital Input Relay
PD, B300
OVC II
L1 L2
N
CU, 75C, 14AWG MIN MEAS CAT III OVC III Production | Consumption
IQ Gateway tb
c
s
g

Envoy S Metered terminal block
Load center
To grid
From PV system
Production
CT
Consumption
CTs
L1: black
L2: red
blue
N: white
white
blue
white
white
blue
A
B
N
C
IA●
IA
IB●
IB
IC●
IC
IA●
IA
IB●
IB
IC●
IC
1 2 3 4 NO
REF CMN 5C
CMN
Production Consumption Relay
Digital Input
CU, 14 AWG, 75C MEAS CAT III OVC III
PD, B300
OVC II

Revision history
REVISION DATE DESCRIPTION
140-00182-02 June 2023 Updated the document for product names and editorial changes.
140-00182-01 March 2023 Initial release
© 2023 Enphase Energy. All rights reserved. Enphase, the e and CC logos, IQ, and cer-
tain other marks listed at https://enphase.com/trademark-usage-guidelines are trade-
marks of Enphase Energy, Inc. in the US and other countries. Data subject to change.
Rev02/06-14-2023