Professional microinverters, monitoring, metering and Flex-S3 accessories
for residential and commercial PV systems.
HMS MicroinvertersFlex-S3 AccessoriesDTU MonitoringSmart Metering
1–4Panel Support
IP67Outdoor Rated
25yrDesign Lifetime
ProInstaller Range
Official UK Partner
Hoymiles DDSU666 Smart Energy CT Meter
SKUDDSU666
Original price
£41.76
-
Original price
£41.76
Original price
£41.76inc VAT£34.80exc VAT
£41.76
-
£41.76
Current price£41.76inc VAT£34.80exc VATinc VAT£34.80exc VAT
| /
✓Professional installer product
✓Compatible with Hoymiles DTU monitoring
✓Outdoor IP67 rated microinverter range
✓Works with Flex-S3 cabling accessories
Estimated delivery time: Next Working Day
Description
The Hoymiles DDSU 666 is a single-phase energy meter designed for accurate monitoring and metering of electrical power systems. Supplied with a CT 100A current transformer, this DIN-Rail meter is perfect for diverse applications in the communication and construction industries, especially when used with DTU PRO.
The Hoymiles DDSU 666 ensures precise energy monitoring with features like a wide temperature LCD display, RS485 communication, and a broad operating temperature range. With its compact, modular design and easy installation, it is a versatile choice for various energy management applications.
Operating Temperature: -25°C ~ +55°C
Communication: RS485 with Modbus-RTU protocol
renewable energySolarSolar Accessories
HOYMILES HMS SYSTEM GUIDE
Choose the right HMS setup
Build a professional Hoymiles system around the correct HMS microinverter, monitoring gateway and installation accessories.
01
HMS-450-1T
1 panel support
Ideal for single-panel module-level installations where compact, reliable AC conversion is required.
02
HMS-900-2T
2 panel support
Designed for two-panel PV setups, giving installers a practical option for smaller residential arrays.
03
HMS-1800-4T
4 panel support
Suitable for larger module groups, helping reduce inverter count while keeping module-level performance.
04
DTU + S-Miles
System monitoring
Add DTU monitoring to connect compatible HMS systems with S-Miles Cloud visibility and performance data.
05
Flex-S3 Accessories
Installation accessories
Complete the system with compatible cabling and connector accessories for professional HMS installations.
WHY INSTALLERS CHOOSE HMS
Professional microinverter technology for modern PV systems
Hoymiles HMS products are designed to give installers a flexible, scalable and monitoring-ready platform for residential and small commercial solar installations.
01
Module-level performance
Each panel operates independently, helping reduce the impact of shading, mismatch or different roof orientations.
02
Flexible system design
Choose 1, 2 or 4 panel support across the HMS range to suit different roof layouts and project sizes.
03
Monitoring ready
Pair with compatible DTU gateways and S-Miles Cloud for system visibility, performance data and diagnostics.
04
Lower DC complexity
Microinverter architecture keeps conversion close to the module and can simplify design compared with traditional string systems.
05
Installer-friendly accessories
Flex-S3 cabling and compatible HMS accessories help installers complete neat, scalable PV installations.
06
Professional product range
Built for professional solar installers working across residential rooftops, retrofit projects and small commercial PV.
HOYMILES HMS RANGE COMPARISON
Compare the HMS microinverter range
Choose the correct HMS microinverter based on panel count, rated AC output and recommended module power.
1 Panel
HMS-450-1T
Compact 1-in-1 microinverter for single-panel installations.
Panel support1 panel
Rated AC output450VA
Recommended module power360–600W+
MPPTs1
Max input current15A
Best suited forSingle module PV points, small roof sections and compact residential installs
2 Panels
HMS-900-2T
Balanced 2-in-1 microinverter for residential solar projects.
Panel support2 panels
Rated AC output900VA
Recommended module power360–600W+ per panel
MPPTs2
Max input current2 × 15A
Best suited forResidential PV arrays, paired panel layouts and flexible roof designs
4 Panels
HMS-1800-4T
High-output 4-in-1 microinverter for larger module groups.
Panel support4 panels
Rated AC output1800VA
Recommended module power360–600W+ per panel
MPPTs4
Max input current4 × 15A
Best suited forLarger residential arrays, grouped panels and small commercial systems
Official UK Partner