Product News

SANYO DENKI Develops a Photovoltaic Inverter
with No Limit on the Number of Grid-Connected Units


April 4, 2017

SANYO DENKI CO., LTD. has developed a 3-phase PV inverter SANUPS P73J that can shorten the installation time of multi-inverter grid-connected systems.
It can be safely used outdoors with its IP65 rated waterproof and dustproof performance.



1. No limit on the number of grid-connected PV inverters

The industry’s new standard islanding detection method “frequency feedback method with step injection”(1) allows you to connect multiple units to the grid with virtually no limit on the number.
This enables to build large-scale solar systems.

2. Reduces system installation costs and time

P73J exempts you from a test required for the grid-connection agreement with power companies, greatly reducing installation costs and time. (2)

(1) A new method for detecting a power outage in the commercial grid in Japan.

(2) Certified by Japan Electrical Safety & Environment Technology Laboratories (JET)


Item Grid-Connected Type
Rated output power 9.9 kW / 10 kW
Insulation method High frequency isolation transformer
DC input Input operating voltage range 150 to 570 VDC
AC output Number of phases/wires 3-Phase 3-wire
Rated voltage (line-to-line) 202 VAC
Rated frequency 50/60 Hz
Islanding detection function Passive method Voltage phase jump detection method
Active method Frequency feedback method with step injection
Efficiency 93% or greater (at rated output and 1.0 power factor setting)


Photovoltaic power generation systems

Release Date

April 4, 2017

Note: Certified by Japan Electrical Safety & Environment Technology Laboratories (JET)
Certification No.: MP-0136(9.9 kW model), MP-0135(10 kW model)

Note: The information stated in this release is current as of April 4, 2017.
“ SANUPS ” is a trademark of SANYO DENKI CO.,LTD.