Description
APsystems’ 3rd generation of dual-module microinverters, the DS3-S represents the culmination of years of power conversion expertise and innovation in high-efficiency, high-density power conversion to maximize the peak performance of today’s high-capacity PV modules.
The DS3-S reaches unprecedented levels of power output and is fully backwards compatible with QS1 and YC600 microinverters and accessories. It features 2 input channels, each with independent MPPT, and encrypted wireless Zigbee communication. An innovative and compact design makes the product lighter while maximizing power production, and silicone-encapsulated components reduce stress on electronics, facilitate thermal dissipation, and enhance weatherproofing. Reliability is significantly increased thanks to 20% fewer components than previous generations.
The DS3-S series is grid-interactive and fully compliant with CA Rule 21 requirements. With its unparalleled performance, efficiency of 97%, and increased reliability, the APsystems DS3-S is a gamechanger for residential and commercial solar.
DS3-S Product Features
- One microinverter connects to two solar modules
- Max output power reaching 640 VA
- Two independent input channels (MPPT)
- CA Rule 21 (UL 1741 SA) compliant
- NEC 2020 690.12 Rapid Shutdown Compliant
- Encrypted Wireless Zigbee Communication to ECU-R Monitoring Interface
DS3-S Specifications In Brief
Input Data (DC)
Recommended PV Module Power (STC) Range : 250Wp-480Wp+
Peak Power Tracking Voltage : 28V-45V
Operating Voltage Range : 26V-60V
Maximum Input Voltage : 60V
Maximum Input Current : 16A x 2
Maximum input short circuit current : 20A per input
Output Data (AC)
Maximum Continuous Output Power : 640VA
Nominal Output Voltage/Range : 240V / 211V-264V
Nominal Output Current : 2.66A
Maximum Units per 30A Branch : 9 (=18 solar modules)
Maximum Units per 20A Branch : 6 (=12 solar modules)
Mechanical Data
Operating Ambient Temperature Range : -40°F to +149°F (-40°C to +65°C)
Dimensions (W x H x D) : 10.3” × 8.6” × 1.6” (263mm x 218mm x 41.2mm)
Weight : 5.7lbs (2.7kg)
DC Connector Type : Stäubli MC4
Cooling : Natural Convection – No Fans
Communication (Inverter To ECU-R) : Encrypted ZigBee
Warranty : 10 Years (25 years optional – see order form)









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