IQ7/IQ7+/IQ7X/IQ7A Microinverters Installation and Operation Manual
42 © 2023 Enphase Energy Inc. All rights reserved. September 2023
IOM-00028-1.0
5.2.5 IQ Cable specifications
Specification Value
Voltage rating 600 V
Voltage withstand test (kV/1min) AC 3.0
Max DC conductor resistance (68ºF)
(Ω/km)
5.433
Insulation resistance (68ºF) ≥20M (Ω/km)
System temperature range (ambient) -40ºF to 149ºF
Cable temperature rating 194ºF Dry / 194ºF Wet
Cable rating DG
Certification UL 3003, TC-ER equivalent
Flame test rating FT4
Cable conductor insulator rating THHN/THWN-2
Environmental protection rating IEC 60529 IP67 NEMA 6
UV resistance 720 h
Compliance RoHS, OIL RES I, CE, UV Resistant, combined UL for Canada and
the United States
Conductor size 12 AWG
Maximum loop size 12 cm (4.75 ")
Flat cable dimensions 6 mm x 9.5 mm (0.2" x 0.37")
Sealing cap dimensions 38.6 mm x 20 mm (1.5" x 0.7")
Cable connector dimensions 20 mm x 1.1 mm x 6.5 mm (0.7" x 0.04" x 0.25")
5.2.6 Enphase connector ratings
Enphase connectors on the cable assemblies in the following table have a maximum current of 20 A, a
maximum OCPD of 20 A, and a maximum ambient temperature of -40°C to 79°C (-40°F to 174.2°F) and
are rated for disconnection under load.
Part number Model Maximum voltage
840-00387 Q-12-10-240 277 VAC
840-00388 Q-12-17-240 277 VAC
840-00389 Q-12-20-200 277 VAC
840-00385 Q-DCC-2 100 VDC
840-00386 Q-DCC-5 100 VDC
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