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Hoymiles HMeter-CT-S120-RW Single-Phase Smart Meter

Model: HMeter-CT-S120-RW · SKU: Not documented

Prepared Nov 12, 2026

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Common specifications

Device type	Single-Phase smart meter with current transformers, DIN railSource [1]
Max switched load (A)	Not documented
Max switched load (W)	Not documented
Measurement channels	Single-Phase, grid type 1P2WSource [1]
Current sensors	Current transformer, 1 m cableSource [1]
Current rating	120 ASource [1]
Voltage range	100 to 277 VSource [1]
Accuracy	1 %Source [1]
Communications	WLAN (Wi-Fi 802.11 b/g/n), Modbus TCP; RS-485, Modbus RTU; BLE 5.0Source [1]
Display	Not documented
Power input	Power consumption 2 WSource [1]
Mounting	Snap-on DIN 35 railSource [1]
Safety listing	Not documented
Weight	0.07 kg0.16 lb convertedCalculatedSource [1]
Dimensions	68.5 D × 19 W × 94.5 H mm2.7 D × 0.75 W × 3.72 H in convertedSource [1]
Enclosure volume	0.12 L** Calculated from recorded external dimensions
Warranty term	Not documented

All recorded specifications

Accuracy	1 %Documented claim Conditions Active power accuracy, printed as "Active power ±1% (conforming to IEC 62053-21 Class 1)"; the same table prints reactive power ±2%, voltage ±0.5% and current ±0.5% from 4 to 120 A. Location: PDF page 2, Technical Specifications, Measurement Accuracy, Active power Active power accuracy, printed as "Active power ±1% (conforming to IEC 62053-21 Class 1)"; the same table prints reactive power ±2%, voltage ±0.5% and current ±0.5% from 4 to 120 A. Location: PDF page 2, Technical Specifications, Measurement Accuracy, Active power Official datasheet · Hoymiles HMeter-CT-S120-RW Single-Phase Smart Meter datasheet (Region: Global, REV1.4) (November 2, 2026 capture) [1]
Communications	WLAN (Wi-Fi 802.11 b/g/n), Modbus TCP; RS-485, Modbus RTU; BLE 5.0Documented claim Conditions Printed as "Supported communication interface WLAN / RS-485", "Port protocol Modbus TCP / Modbus RTU", "Wi-Fi 802.11 b/g/n" and "Bluetooth protocol BLE 5.0"; the default baud rate is printed as 9600. Location: PDF page 2, Technical Specifications, Communication Specifications Printed as "Supported communication interface WLAN / RS-485", "Port protocol Modbus TCP / Modbus RTU", "Wi-Fi 802.11 b/g/n" and "Bluetooth protocol BLE 5.0"; the default baud rate is printed as 9600. Location: PDF page 2, Technical Specifications, Communication Specifications Official datasheet · Hoymiles HMeter-CT-S120-RW Single-Phase Smart Meter datasheet (Region: Global, REV1.4) (November 2, 2026 capture) [1]
Current rating	120 ADocumented claim Conditions Printed as "Current range 0 to 120 A". Location: PDF page 2, Technical Specifications, Electrical Specifications, Current range Printed as "Current range 0 to 120 A". Location: PDF page 2, Technical Specifications, Electrical Specifications, Current range Official datasheet · Hoymiles HMeter-CT-S120-RW Single-Phase Smart Meter datasheet (Region: Global, REV1.4) (November 2, 2026 capture) [1]
Current sensors	Current transformer, 1 m cableDocumented claim Conditions Printed as "Current transformer cable length 1 m"; the features print a quick-connect design for the CT. Location: PDF page 2, Technical Specifications, Mechanical Specifications, Current transformer cable length Printed as "Current transformer cable length 1 m"; the features print a quick-connect design for the CT. Location: PDF page 2, Technical Specifications, Mechanical Specifications, Current transformer cable length Official datasheet · Hoymiles HMeter-CT-S120-RW Single-Phase Smart Meter datasheet (Region: Global, REV1.4) (November 2, 2026 capture) [1]
Device type	Single-Phase smart meter with current transformers, DIN railDocumented claim Conditions Printed as "Grid type 1P2W", "Mounting mode Snap-on By DIN 35 Rail" and "Current transformer cable length 1 m". Location: PDF page 2, Technical Specifications, Electrical Specifications, Grid type; Mechanical Specifications Printed as "Grid type 1P2W", "Mounting mode Snap-on By DIN 35 Rail" and "Current transformer cable length 1 m". Location: PDF page 2, Technical Specifications, Electrical Specifications, Grid type; Mechanical Specifications Official datasheet · Hoymiles HMeter-CT-S120-RW Single-Phase Smart Meter datasheet (Region: Global, REV1.4) (November 2, 2026 capture) [1]
Dimensions	68.5 D × 19 W × 94.5 H mm2.7 D × 0.75 W × 3.72 H in convertedDocumented claim Conditions Printed as "19 × 94.5 × 68.5 mm", width by height by depth. Location: PDF page 2, Technical Specifications, Mechanical Specifications, Dimensions (W × H × D) Printed as "19 × 94.5 × 68.5 mm", width by height by depth. Location: PDF page 2, Technical Specifications, Mechanical Specifications, Dimensions (W × H × D) Official datasheet · Hoymiles HMeter-CT-S120-RW Single-Phase Smart Meter datasheet (Region: Global, REV1.4) (November 2, 2026 capture) [1]
Enclosure	IP20Documented claim Conditions Printed as "Enclosure protection rating IP20". Location: PDF page 2, Technical Specifications, Mechanical Specifications, Enclosure protection rating Printed as "Enclosure protection rating IP20". Location: PDF page 2, Technical Specifications, Mechanical Specifications, Enclosure protection rating Official datasheet · Hoymiles HMeter-CT-S120-RW Single-Phase Smart Meter datasheet (Region: Global, REV1.4) (November 2, 2026 capture) [1]
Measurement channels	Single-Phase, grid type 1P2WDocumented claim Conditions Printed as "Grid type 1P2W". Location: PDF page 2, Technical Specifications, Electrical Specifications, Grid type Printed as "Grid type 1P2W". Location: PDF page 2, Technical Specifications, Electrical Specifications, Grid type Official datasheet · Hoymiles HMeter-CT-S120-RW Single-Phase Smart Meter datasheet (Region: Global, REV1.4) (November 2, 2026 capture) [1]
Mounting	Snap-on DIN 35 railDocumented claim Conditions Printed as "Mounting mode Snap-on By DIN 35 Rail" and "DIN-35 rail snap-on mounting supports quick deployment". Location: PDF page 2, Technical Specifications, Mechanical Specifications, Mounting mode; PDF page 1, features Printed as "Mounting mode Snap-on By DIN 35 Rail" and "DIN-35 rail snap-on mounting supports quick deployment". Location: PDF page 2, Technical Specifications, Mechanical Specifications, Mounting mode; PDF page 1, features Official datasheet · Hoymiles HMeter-CT-S120-RW Single-Phase Smart Meter datasheet (Region: Global, REV1.4) (November 2, 2026 capture) [1]
Operating temperature	-40 to 70 °C-40 to 158 °F convertedDocumented claim Conditions Printed as "Operating temperature range -40℃ to +70℃". Location: PDF page 2, Technical Specifications, Mechanical Specifications, Operating temperature range Printed as "Operating temperature range -40℃ to +70℃". Location: PDF page 2, Technical Specifications, Mechanical Specifications, Operating temperature range Official datasheet · Hoymiles HMeter-CT-S120-RW Single-Phase Smart Meter datasheet (Region: Global, REV1.4) (November 2, 2026 capture) [1]
Power input	Power consumption 2 WDocumented claim Conditions Printed as "Power consumption 2 W"; frequency 50/60 Hz, overvoltage category CAT III. Location: PDF page 2, Technical Specifications, Electrical Specifications, Power consumption Printed as "Power consumption 2 W"; frequency 50/60 Hz, overvoltage category CAT III. Location: PDF page 2, Technical Specifications, Electrical Specifications, Power consumption Official datasheet · Hoymiles HMeter-CT-S120-RW Single-Phase Smart Meter datasheet (Region: Global, REV1.4) (November 2, 2026 capture) [1]
Voltage range	100 to 277 VDocumented claim Conditions Printed as "Input voltage range 100 to 277 V". Location: PDF page 2, Technical Specifications, Electrical Specifications, Input voltage range Printed as "Input voltage range 100 to 277 V". Location: PDF page 2, Technical Specifications, Electrical Specifications, Input voltage range Official datasheet · Hoymiles HMeter-CT-S120-RW Single-Phase Smart Meter datasheet (Region: Global, REV1.4) (November 2, 2026 capture) [1]
Weight	0.07 kg0.16 lb convertedCalculated71 g / 1000 g/kg = 0.071 kg Conditions Printed as "Weight 71 g" (written in kg). Location: PDF page 2, Technical Specifications, Mechanical Specifications, Weight Printed as "Weight 71 g" (written in kg). Location: PDF page 2, Technical Specifications, Mechanical Specifications, Weight Official datasheet · Hoymiles HMeter-CT-S120-RW Single-Phase Smart Meter datasheet (Region: Global, REV1.4) (November 2, 2026 capture) [1]

Warranty

Certificate records

No records documented.

Sources and revisions

Hoymiles HMeter-CT-S120-RW Single-Phase Smart Meter datasheet (Region: Global, REV1.4) (November 2, 2026 capture)Official datasheet · Revision REV1.4 · Checked Nov 1, 2026https://w3oss.hoymiles.com/uploadfile/1/202608/8ba70bf2df.pdf