Manufacturer and seller images. Configuration examples may include additional equipment.
Image source: Hoymiles HMS-C combiner box, from Hoymiles' North America product page for this model (captured November 2, 2026): an angled front view of the closed enclosure, shown on a white backgroundNo sellers found.
Printed as "21.2 lbs. (9.6 kg)".
Official datasheet: Hoymiles Combiner Box datasheet (Region: North America, V202406) (November 2, 2026 capture) Rev V202406 · Checked · Earlier documentLocation: PDF page 2, Technical Specifications, Mechanical Data, Weight
Documented
Printed in the datasheet and on the page as "UL1741 listed". Manufacturer claim; no issuer directory was checked.
Official datasheet: Hoymiles Combiner Box datasheet (Region: North America, V202406) (November 2, 2026 capture) Rev V202406 · Checked · Earlier documentOfficial product page: Hoymiles Combiner Box HMS-C product page, North America (November 2, 2026 capture) Checked · Earlier documentLocation: PDF page 1, features; product page Features
Documented
The datasheet prints "This Combiner Box includes the DTU and smart meter, enabling functions such as data collection, data transmission, real- time monitoring, and Export Power Limit." and "Combiner Box HMS-C Compatible with HMS series microinverters"; datasheet and page print "Integrates a communication module that collects microinverter data via Sub-1G (compatible with HMS series microinverters)".
Official datasheet: Hoymiles Combiner Box datasheet (Region: North America, V202406) (November 2, 2026 capture) Rev V202406 · Checked · Earlier documentOfficial product page: Hoymiles Combiner Box HMS-C product page, North America (November 2, 2026 capture) Checked · Earlier documentLocation: PDF page 1, description and model description; product page introduction
Documented
Printed as "System voltage 120/240 VAC, 60 Hz".
Official datasheet: Hoymiles Combiner Box datasheet (Region: North America, V202406) (November 2, 2026 capture) Rev V202406 · Checked · Earlier documentLocation: PDF page 2, Technical Specifications, Electrical Specifications, System voltage
Documented
Printed in the datasheet and on the page as "Integrates a smart meter for revenue-grade PV production metering with accuracy at ±0.5% (ANSI C12.20) and grid metering with accuracy at ±1.0% (ANSI C12.1)"; the datasheet's accessories print "Production CT Pre-wired revenue-grade solid core CT, accurate up to 0.5% Grid CT Two consumption metering clamp CTs, shipped with the box, accurate up to 1.0%" and "Metering ports Up to two Grid CTs, and two Production CTs".
Official datasheet: Hoymiles Combiner Box datasheet (Region: North America, V202406) (November 2, 2026 capture) Rev V202406 · Checked · Earlier documentOfficial product page: Hoymiles Combiner Box HMS-C product page, North America (November 2, 2026 capture) Checked · Earlier documentLocation: Model description; PDF page 2, Technical Specifications, Accessories, Production CT and Grid CT
Documented
Printed as "19.67 × 15.75 × 7.87 inch. (500 × 400 × 200 mm)", width by height by depth.
Official datasheet: Hoymiles Combiner Box datasheet (Region: North America, V202406) (November 2, 2026 capture) Rev V202406 · Checked · Earlier documentLocation: PDF page 2, Technical Specifications, Mechanical Data, Dimensions (W × H × D)
Calculated
Printed as "Internet Connection Options Ethernet 802.3, 10 M / 100 M Adaptive Ethernet, Cat 5E (or Cat 6) UTP Ethernet cable (not included), for connecting to the S-Miles Cloud via the internet Mobile connect 4G LTE, for connecting to the S-Miles Cloud via the internet RS485 Support for data transmission using Modbus protocol"; datasheet and page print "Integrates a communication module that collects microinverter data via Sub-1G (compatible with HMS series microinverters)" and "Supports transmitting microinverter data to the S-Miles Cloud via 4G and Ethernet".
Official datasheet: Hoymiles Combiner Box datasheet (Region: North America, V202406) (November 2, 2026 capture) Rev V202406 · Checked · Earlier documentOfficial product page: Hoymiles Combiner Box HMS-C product page, North America (November 2, 2026 capture) Checked · Earlier documentLocation: PDF page 2, Technical Specifications, Internet Connection Options; model description
Documented
Printed as "Branch circuits (solar) Supports up to five 2-Pole Eaton BR series distributed generation (DG) breakers (not included), such as BR210, BR215, BR220, and BR230"; the product page prints "Supports up to five 2-Pole branch circuits for 240 VAC plug-in breakers (not included)".
Official datasheet: Hoymiles Combiner Box datasheet (Region: North America, V202406) (November 2, 2026 capture) Rev V202406 · Checked · Earlier documentOfficial product page: Hoymiles Combiner Box HMS-C product page, North America (November 2, 2026 capture) Checked · Earlier documentLocation: PDF page 2, Technical Specifications, Electrical Specifications, Branch circuits (solar)
Documented
Printed as "21.2 lbs. (9.6 kg)".
Official datasheet: Hoymiles Combiner Box datasheet (Region: North America, V202406) (November 2, 2026 capture) Rev V202406 · Checked · Earlier documentLocation: PDF page 2, Technical Specifications, Mechanical Data, Weight
Documented
Printed in the datasheet and on the page as "UL1741 listed". Manufacturer claim; no issuer directory was checked.
Official datasheet: Hoymiles Combiner Box datasheet (Region: North America, V202406) (November 2, 2026 capture) Rev V202406 · Checked · Earlier documentOfficial product page: Hoymiles Combiner Box HMS-C product page, North America (November 2, 2026 capture) Checked · Earlier documentLocation: PDF page 1, features; product page Features
Documented
The datasheet prints "This Combiner Box includes the DTU and smart meter, enabling functions such as data collection, data transmission, real- time monitoring, and Export Power Limit." and "Combiner Box HMS-C Compatible with HMS series microinverters"; datasheet and page print "Integrates a communication module that collects microinverter data via Sub-1G (compatible with HMS series microinverters)".
Official datasheet: Hoymiles Combiner Box datasheet (Region: North America, V202406) (November 2, 2026 capture) Rev V202406 · Checked · Earlier documentOfficial product page: Hoymiles Combiner Box HMS-C product page, North America (November 2, 2026 capture) Checked · Earlier documentLocation: PDF page 1, description and model description; product page introduction
Documented
Printed as "System voltage 120/240 VAC, 60 Hz".
Official datasheet: Hoymiles Combiner Box datasheet (Region: North America, V202406) (November 2, 2026 capture) Rev V202406 · Checked · Earlier documentLocation: PDF page 2, Technical Specifications, Electrical Specifications, System voltage
Documented
Printed in the datasheet and on the page as "Integrates a smart meter for revenue-grade PV production metering with accuracy at ±0.5% (ANSI C12.20) and grid metering with accuracy at ±1.0% (ANSI C12.1)"; the datasheet's accessories print "Production CT Pre-wired revenue-grade solid core CT, accurate up to 0.5% Grid CT Two consumption metering clamp CTs, shipped with the box, accurate up to 1.0%" and "Metering ports Up to two Grid CTs, and two Production CTs".
Official datasheet: Hoymiles Combiner Box datasheet (Region: North America, V202406) (November 2, 2026 capture) Rev V202406 · Checked · Earlier documentOfficial product page: Hoymiles Combiner Box HMS-C product page, North America (November 2, 2026 capture) Checked · Earlier documentLocation: Model description; PDF page 2, Technical Specifications, Accessories, Production CT and Grid CT
Documented
Printed as "19.67 × 15.75 × 7.87 inch. (500 × 400 × 200 mm)", width by height by depth.
Official datasheet: Hoymiles Combiner Box datasheet (Region: North America, V202406) (November 2, 2026 capture) Rev V202406 · Checked · Earlier documentLocation: PDF page 2, Technical Specifications, Mechanical Data, Dimensions (W × H × D)
Documented
Printed as "Internet Connection Options Ethernet 802.3, 10 M / 100 M Adaptive Ethernet, Cat 5E (or Cat 6) UTP Ethernet cable (not included), for connecting to the S-Miles Cloud via the internet Mobile connect 4G LTE, for connecting to the S-Miles Cloud via the internet RS485 Support for data transmission using Modbus protocol"; datasheet and page print "Integrates a communication module that collects microinverter data via Sub-1G (compatible with HMS series microinverters)" and "Supports transmitting microinverter data to the S-Miles Cloud via 4G and Ethernet".
Official datasheet: Hoymiles Combiner Box datasheet (Region: North America, V202406) (November 2, 2026 capture) Rev V202406 · Checked · Earlier documentOfficial product page: Hoymiles Combiner Box HMS-C product page, North America (November 2, 2026 capture) Checked · Earlier documentLocation: PDF page 2, Technical Specifications, Internet Connection Options; model description
Documented
Printed as "Branch circuits (solar) Supports up to five 2-Pole Eaton BR series distributed generation (DG) breakers (not included), such as BR210, BR215, BR220, and BR230"; the product page prints "Supports up to five 2-Pole branch circuits for 240 VAC plug-in breakers (not included)".
Official datasheet: Hoymiles Combiner Box datasheet (Region: North America, V202406) (November 2, 2026 capture) Rev V202406 · Checked · Earlier documentOfficial product page: Hoymiles Combiner Box HMS-C product page, North America (November 2, 2026 capture) Checked · Earlier documentLocation: PDF page 2, Technical Specifications, Electrical Specifications, Branch circuits (solar)
Documented
Printed as "Rating 110 A"; the same table prints "Eaton BR series busbar rating 125 A", "Maximum continuous current rating (input from PV) 88 A" and "Maximum total branch circuit breaker rating (input) 110 A".
Official datasheet: Hoymiles Combiner Box datasheet (Region: North America, V202406) (November 2, 2026 capture) Rev V202406 · Checked · Earlier documentLocation: PDF page 2, Technical Specifications, Electrical Specifications, Rating
Documented
Printed as "Enclosure rating Outdoor, IP65/NEMA type 3R, Polycarbonate Construction"; datasheet and page print "NEMA type 3R enclosure, UV resistance".
Official datasheet: Hoymiles Combiner Box datasheet (Region: North America, V202406) (November 2, 2026 capture) Rev V202406 · Checked · Earlier documentOfficial product page: Hoymiles Combiner Box HMS-C product page, North America (November 2, 2026 capture) Checked · Earlier documentLocation: PDF page 2, Technical Specifications, Mechanical Data, Enclosure rating
Documented
Printed as "System voltage 120/240 VAC, 60 Hz".
Official datasheet: Hoymiles Combiner Box datasheet (Region: North America, V202406) (November 2, 2026 capture) Rev V202406 · Checked · Earlier documentLocation: PDF page 2, Technical Specifications, Electrical Specifications, System voltage
Documented
Printed as "Load Center Eaton load center, 125 A capacity, with one circuit breaker assigned for powering the communication module, and the other five circuit breakers (not included) designated for branch circuits Communication Module Breaker Circuit breaker, 2-Pole, 10 A"; datasheet and page print "Supports up to five 2-Pole branch circuits for 240 VAC plug-in breakers (not included)".
Official datasheet: Hoymiles Combiner Box datasheet (Region: North America, V202406) (November 2, 2026 capture) Rev V202406 · Checked · Earlier documentOfficial product page: Hoymiles Combiner Box HMS-C product page, North America (November 2, 2026 capture) Checked · Earlier documentLocation: PDF page 2, Technical Specifications, Accessories, Load Center and Communication Module Breaker
Documented
Printed as "Compliance Combiner Box UL 1741, CAN/CSA C22.2 No. 107.1, FCC CFR 47 part 15 B, ICES-003 Issue 7" (the power supply and meter carry their own rows). Manufacturer claims; no issuer directory was checked.
Official datasheet: Hoymiles Combiner Box datasheet (Region: North America, V202406) (November 2, 2026 capture) Rev V202406 · Checked · Earlier documentLocation: PDF page 2, Technical Specifications, Compliance, Combiner Box
Documented
Printed as "-13°F to 122°F (-25°C to 50°C)".
Official datasheet: Hoymiles Combiner Box datasheet (Region: North America, V202406) (November 2, 2026 capture) Rev V202406 · Checked · Earlier documentLocation: PDF page 2, Technical Specifications, Mechanical Data, Ambient temperature range
Documented
Published claims and calculations, not independent test results.
Reached from Hoymiles' download page https://www.hoymiles.com/downloads/datasheet-combiner-box-global-en.html; obtained by Alternative Research, captured 2026-11-02T02:00:46.145Z (archived copy).
Location: PDF page 1 (description, features, model description); PDF page 2, Technical Specifications
Retrieved
Hoymiles' own datasheet for the Combiner Box HMS-C (Region: North America, V202406), listed on Hoymiles' download page https://www.hoymiles.com/downloads/datasheet-combiner-box-global-en.html, which redirects to this file on Hoymiles' file host. Obtained by Alternative Research on November 2, 2026 (captured 02:00:46.145 UTC), because Hoymiles' file host answers our fetcher with a 403; each fact was checked against the printed page. Manufacturer claims, not independent tests.
Archived copy of a document published by Hoymiles. Copyright retained by the publisher; kept for reference and verification only, no endorsement implied. To ask for its removal, email legal@chargedreviews.com.
Archived copy, unaltered, kept as a record of what Hoymiles published. Original address: https://w3oss.hoymiles.com/uploadfile/1/202506/2581a5fc11.pdf. Copyright and takedown
Embedded dates are file metadata, not independent proof of publication.
SHA-256: 7b1b53472e54075f0fbaaf206688c9725c0527eba3c10e8cc72b3dc477d75287
Archived copy captured on 2026-11-02.
Location: Introduction and Features (the Tech Specs block is not used)
Retrieved
Hoymiles' own North America product page for the Combiner Box HMS-C, captured on November 2, 2026 at 02:00:14.609 UTC with the paced research fetcher (HTTP 200): an introduction and a Features list. Its Tech Specs block pairs labels with values that do not match them (for example "Signal: 500 - 1500 V" and "Maximum distance (open space): 99.05%") and is not used. It carries no revision or date. Cited beside Hoymiles' Combiner Box datasheet. Manufacturer claims, not independent tests.
Earlier revisions, archived captures and copies published by someone other than the manufacturer. Every one stays reachable.
Archived copy of a document published by Hoymiles. Copyright retained by the publisher; kept for reference and verification only, no endorsement implied. To ask for its removal, email legal@chargedreviews.com.
Archived copy, unaltered, kept as a record of what Hoymiles published. Original address: https://w3oss.hoymiles.com/uploadfile/1/202506/2581a5fc11.pdf. Copyright and takedown
Embedded dates are file metadata, not independent proof of publication.
SHA-256: 7b1b53472e54075f0fbaaf206688c9725c0527eba3c10e8cc72b3dc477d75287
Printed in the datasheet and on the page as "5-year limited warranty". Neither prints warranty terms.
Official datasheet: Hoymiles Combiner Box datasheet (Region: North America, V202406) (November 2, 2026 capture) Rev V202406 · Checked · Earlier documentOfficial product page: Hoymiles Combiner Box HMS-C product page, North America (November 2, 2026 capture) Checked · Earlier documentLocation: PDF page 1, features; product page Features
Documented
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