enphase CT-200-SOLID Quick Install Manual

Q U I C K I N S T A L L G U I D E
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.
NOTE: The IQ Combiner ships pre-installed with this CT. However, this SKU can be used for replacement in case of damage in field.
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 flowing 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 specified 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 fire. Only qualified 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 fit
the opening in the CT.
Enphase customer support: enphase.com/en-us/support/contact
(Model: CT-200-SOLID)
SPECIFICATIONS
SPECIFICATION
CT type
CT accuracy (error rate)
Max primary supported current
Turns ratio
Pollution degree
Dimensions
Aperture
Primary voltage (range)
Frequency
Operating temperature
Humidity
Pollution degree
Compliance
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.
© 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
marks of Enphase Energy, Inc. in the US and other countries. Data subject to change.
CT-200-SOLID
Solid core
<0.5%
200 A
2,000
3
1.93" diameter
0.76" diameter
250 VAC
60 Hz (45–66 Hz)
−40°C to 65°C
95%
3
RoHS, UL 2808, ANSI C12.20
are trade-