The Sigenergy SigenMicro 500 is a compact 1-in-1 microinverter built for single-module rooftop and balcony solar installations, converting the DC output of one panel directly into grid-ready AC power at the point of generation. Rated at 500W nominal output, it accepts modules from 400W up to 670W+, giving plenty of headroom for today's higher-output panels.
Sigenergy's DAB (Dual Active Bridge) topology delivers industry-leading conversion efficiency of up to 97.5%, while module-level MPPT means each panel performs independently of shading or soiling elsewhere on the array. Communication runs over Sigenergy's world-first WLAN Mesh network, removing the need for a separate gateway device, and the unit's built-in EMS (Energy Management System) keeps monitoring and control running locally.
500W
Nominal Output
97.5%
Peak Efficiency
400-670W+
Compatible Module Power
IP67
Ingress Protection
WLAN Mesh
Communication
2.8kg
Unit Weight
Fast Commissioning
Sigenergy's AI layout recognition automatically maps each microinverter's position within the array, enabling 5-minute commissioning from a mobile device without manual address entry for every unit.
System Compatibility
This 1-in-1 unit accepts a single PV module only, with a minimum/maximum input voltage window of 16-60V. Confirm your chosen module's Vmp and Voc fall within this range before ordering, and check local branch-circuit cabling regulations for the maximum number of units permitted per circuit.
DAB Topology
High-frequency, galvanically isolated Dual Active Bridge design pushes conversion efficiency to 97.5% peak, reducing energy losses between panel and grid.
WLAN Mesh Networking
The world's first WLAN Mesh communication system for microinverters improves signal reliability across large arrays and scales easily as systems grow.
Built-In EMS
An embedded Energy Management System removes the need for a separate network gateway, simplifying installation and reducing points of failure.
AI Layout Recognition
Automatically identifies each microinverter's physical position for 5-minute fast commissioning via the mySigen app.
Whitelisting Security
Enhanced data protection through device whitelisting keeps the communication network secure from unauthorised access.
Module-Level Monitoring
Individual panel-level performance monitoring, ground fault detection and rapid shutdown support give installers and homeowners full visibility of array health.
How many solar panels can I connect to this microinverter?
This is the 1-in-1 model, designed for a single PV module with a compatible power range of 400W to 670W+. For two-module installations, the SigenMicro 2-in-1 variant is available instead.
What efficiency can I expect from the SigenMicro 500?
The unit achieves a peak efficiency of 97.5% and a weighted efficiency of 97.0%, thanks to its high-frequency, galvanically isolated DAB topology.
Does this microinverter need a separate communication gateway?
No. The SigenMicro range includes a built-in EMS and WLAN Mesh communication system, so no additional network gateway hardware is required to monitor performance.
Is the SigenMicro 500 suitable for outdoor and balcony installations?
Yes. With an IP67 ingress protection rating and an operating temperature range of -40°C to 65°C, it is built for both rooftop and exposed balcony solar installations.
How is the microinverter mounted and connected?
It uses a bracket-mounted installation method with plug-and-play AC connectors, and weighs 2.8 kg, making it straightforward to fit alongside the panel on rooftops or balcony rails.
BTU & WATT Calculator
Room Dimensions
Room Type
Living Room
Bedroom
Kitchen
Bathroom
Conservatory
Hallway
Glazing Type
Single Glazed
Double Glazed
Triple Glazed
External Walls
0 Wall
1 Wall
2 Walls
3 Walls
4 Walls
Insulation Level
Poor
Average
Good (New Build)
Required Heating
0
Watts
0
BTUs
Documentation
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