4.3 Position and Space Required
Please install the Microinverter and all DC connections under the PV module to avoiding direct sunlight, rain exposure,
snow layup, UV etc. Also, the silver side of the microinverter should be up and face to the PV module.
Allow a minimum of 2 cm of space around the microinverter enclosure to ensure ventilation and heat dissipation.
HMT-18 0 0 HMT-2500
Maximum over current
protection device (OCPD)
Maximum number per
12AWG branch
7(@230Vac) 6(@230Vac) 20A
Maximum number per
10AWG branch
11(@230Vac) 9(@230Vac) 30A
4. Installation Preparation
4.1 Module Compatibity
Hoymiles HMT series HMT-1800/HMT-2250 are compatible with most 60-cell and 72-cell PV modules. For other
types of PV modules, please ensure that they are electrically paired with Hoymiles microinverter. Please see the Tech-
nical Data page of this user manual to get more information.
4.2 AC Branch Circuit Capacity
Hoymiles HMT-1800/HMT-2250 can be used with 12AWG or 10AWG AC bus cable and the AC bus connector which
are provided by Hoymiles. When preparing, do not exceed the limits of maximum number of microinverters per
12AWG or 10AWG AC branch shown as below.
© 2020 Hoymiles Power Electronics Inc. All rights reserved.
08
Three-phase Microinverter HMT-1800/2250 About Function
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