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Image source: Morningstar RD-1 Relay Driver, from Morningstar's own product page whose specifications list Model RD-1 (image captured November 2, 2026): a front view of the module, shown on a white backgroundPaid link. As an Amazon Associate we earn from qualifying purchases. Price as of Nov 12, 2026, 4:40 AM PST, may change
Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon.com at the time of purchase will apply to the purchase of this product.
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Printed as "Version RD-1" above the technical specifications.
Official datasheet: Morningstar Relay Driver datasheet (MS-003039 Rev 08/2024) (November 2, 2026 capture) Rev MS-003039 Rev 08/2024 · Checked · Earlier documentLocation: PDF page 2, Version
Documented
Printed as "Comm. Ports (opto-isolated) (2) RJ-11 meter bus connections (1) 9-pin serial RS-232".
Official datasheet: Morningstar Relay Driver datasheet (MS-003039 Rev 08/2024) (November 2, 2026 capture) Rev MS-003039 Rev 08/2024 · Checked · Earlier documentLocation: PDF page 2, Electrical, Comm. Ports
Documented
Converted: 0.2 kg as printed
Printed as "Weight 0.2 kg / 0.4 lb" (written in kg).
Official datasheet: Morningstar Relay Driver datasheet (MS-003039 Rev 08/2024) (November 2, 2026 capture) Rev MS-003039 Rev 08/2024 · Checked · Earlier documentLocation: PDF page 2, Mechanical, Weight
Converted
Printed as "Morningstar’s Relay Driver is a logic module which provides high level system control functions such as load control, generator start and alarm signaling." and "The product controls four independent relay driver outputs with battery voltage and other threshold settings in stand-alone mode or by reading digital data inputs from other Morningstar meterbus enabled devices in the system."
Official datasheet: Morningstar Relay Driver datasheet (MS-003039 Rev 08/2024) (November 2, 2026 capture) Rev MS-003039 Rev 08/2024 · Checked · Earlier documentLocation: PDF page 1, description
Documented
Printed as "System Voltage 12 to 48 volts*" (the asterisk: the voltage of user selected relays must be the battery voltage), "Min. Operating Voltage 8 volts Max. Operating Voltage 68 volts" and "Self Consumption < 20 mA".
Official datasheet: Morningstar Relay Driver datasheet (MS-003039 Rev 08/2024) (November 2, 2026 capture) Rev MS-003039 Rev 08/2024 · Checked · Earlier documentLocation: PDF page 2, Electrical
Documented
Converted: 16.3 x 8.1 x 3.3 cm x 10 mm/cm = 163 x 81 x 33 mm
Printed as "Length: 16.3 cm / 6.4 inch Width: 8.1 cm / 3.2 inch Depth: 3.3 cm / 1.3 inch"; length, width and depth as named.
Official datasheet: Morningstar Relay Driver datasheet (MS-003039 Rev 08/2024) (November 2, 2026 capture) Rev MS-003039 Rev 08/2024 · Checked · Earlier documentLocation: PDF page 2, Mechanical, Dimensions
Calculated
Printed as "Mounts to a DIN rail or a flat surface." and "DIN Rail Attachment 35 mm standard".
Official datasheet: Morningstar Relay Driver datasheet (MS-003039 Rev 08/2024) (November 2, 2026 capture) Rev MS-003039 Rev 08/2024 · Checked · Earlier documentLocation: PDF page 1, features; PDF page 2, Mechanical
Documented
Converted: 750 mA / 1000 mA/A = 0.75 A
Printed as "Max. Channel Current 750 mA", per relay driver channel (written in A).
Official datasheet: Morningstar Relay Driver datasheet (MS-003039 Rev 08/2024) (November 2, 2026 capture) Rev MS-003039 Rev 08/2024 · Checked · Earlier documentLocation: PDF page 2, Electrical, Max. Channel Current
Converted
Printed as "Enclosure Type 1, indoor rated".
Official datasheet: Morningstar Relay Driver datasheet (MS-003039 Rev 08/2024) (November 2, 2026 capture) Rev MS-003039 Rev 08/2024 · Checked · Earlier documentLocation: PDF page 2, Mechanical, Enclosure
Documented
Printed as "Comm. Ports (opto-isolated) (2) RJ-11 meter bus connections (1) 9-pin serial RS-232".
Official datasheet: Morningstar Relay Driver datasheet (MS-003039 Rev 08/2024) (November 2, 2026 capture) Rev MS-003039 Rev 08/2024 · Checked · Earlier documentLocation: PDF page 2, Electrical, Comm. Ports
Documented
Converted: 0.2 kg as printed
Printed as "Weight 0.2 kg / 0.4 lb" (written in kg).
Official datasheet: Morningstar Relay Driver datasheet (MS-003039 Rev 08/2024) (November 2, 2026 capture) Rev MS-003039 Rev 08/2024 · Checked · Earlier documentLocation: PDF page 2, Mechanical, Weight
Converted
Printed as "Morningstar’s Relay Driver is a logic module which provides high level system control functions such as load control, generator start and alarm signaling." and "The product controls four independent relay driver outputs with battery voltage and other threshold settings in stand-alone mode or by reading digital data inputs from other Morningstar meterbus enabled devices in the system."
Official datasheet: Morningstar Relay Driver datasheet (MS-003039 Rev 08/2024) (November 2, 2026 capture) Rev MS-003039 Rev 08/2024 · Checked · Earlier documentLocation: PDF page 1, description
Documented
Printed as "System Voltage 12 to 48 volts*" (the asterisk: the voltage of user selected relays must be the battery voltage), "Min. Operating Voltage 8 volts Max. Operating Voltage 68 volts" and "Self Consumption < 20 mA".
Official datasheet: Morningstar Relay Driver datasheet (MS-003039 Rev 08/2024) (November 2, 2026 capture) Rev MS-003039 Rev 08/2024 · Checked · Earlier documentLocation: PDF page 2, Electrical
Documented
Converted: 16.3 x 8.1 x 3.3 cm x 10 mm/cm = 163 x 81 x 33 mm
Printed as "Length: 16.3 cm / 6.4 inch Width: 8.1 cm / 3.2 inch Depth: 3.3 cm / 1.3 inch"; length, width and depth as named.
Official datasheet: Morningstar Relay Driver datasheet (MS-003039 Rev 08/2024) (November 2, 2026 capture) Rev MS-003039 Rev 08/2024 · Checked · Earlier documentLocation: PDF page 2, Mechanical, Dimensions
Converted
Printed as "Mounts to a DIN rail or a flat surface." and "DIN Rail Attachment 35 mm standard".
Official datasheet: Morningstar Relay Driver datasheet (MS-003039 Rev 08/2024) (November 2, 2026 capture) Rev MS-003039 Rev 08/2024 · Checked · Earlier documentLocation: PDF page 1, features; PDF page 2, Mechanical
Documented
Converted: 750 mA / 1000 mA/A = 0.75 A
Printed as "Max. Channel Current 750 mA", per relay driver channel (written in A).
Official datasheet: Morningstar Relay Driver datasheet (MS-003039 Rev 08/2024) (November 2, 2026 capture) Rev MS-003039 Rev 08/2024 · Checked · Earlier documentLocation: PDF page 2, Electrical, Max. Channel Current
Converted
Printed as "Enclosure Type 1, indoor rated".
Official datasheet: Morningstar Relay Driver datasheet (MS-003039 Rev 08/2024) (November 2, 2026 capture) Rev MS-003039 Rev 08/2024 · Checked · Earlier documentLocation: PDF page 2, Mechanical, Enclosure
Documented
Printed as "Compatible with: • TriStar MPPT 600V Controller • TriStar MPPT Controller • SunSaver MPPT Controller • Additional System Relay Drivers • TriStar (PWM) Controller • SunSaver Duo Controller • SureSine (Classic) Inverter • MeterHub".
Official datasheet: Morningstar Relay Driver datasheet (MS-003039 Rev 08/2024) (November 2, 2026 capture) Rev MS-003039 Rev 08/2024 · Checked · Earlier documentLocation: PDF page 2, Compatible with
Documented
Printed as "Operating Temperature –40°C to +45°C".
Official datasheet: Morningstar Relay Driver datasheet (MS-003039 Rev 08/2024) (November 2, 2026 capture) Rev MS-003039 Rev 08/2024 · Checked · Earlier documentLocation: PDF page 2, Environmental, Operating Temperature
Documented
Published claims and calculations, not independent test results.
Listed in Morningstar's support library https://www.morningstarcorp.com/support/library/; captured 2026-11-02T04:29:35.470Z (archived copy).
Location: PDF page 1 (description, features); PDF page 2, Technical Specifications
Retrieved
Morningstar's own Relay Driver logic module datasheet (Control # MS-003039 Rev 08/2024), version RD-1, listed in Morningstar's support library (https://www.morningstarcorp.com/support/library/) and fetched directly from morningstarcorp.com with the paced research fetcher on November 2, 2026 (robots.txt read first; request ended 04:29:35.470 UTC). Manufacturer claims, not independent tests.
Archived copy of a document published by Morningstar. 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 Morningstar published. Original address: https://www.morningstarcorp.com/wp-content/uploads/datasheet-relay-driver-en.pdf. Copyright and takedown
Embedded dates are file metadata, not independent proof of publication.
SHA-256: 9178840cb74a86703a3af294475935e35434d84f3484918e8d707b92dc3ab107
Earlier revisions, archived captures and copies published by someone other than the manufacturer. Every one stays reachable.
Archived copy of a document published by Morningstar. 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 Morningstar published. Original address: https://www.morningstarcorp.com/wp-content/uploads/datasheet-relay-driver-en.pdf. Copyright and takedown
Embedded dates are file metadata, not independent proof of publication.
SHA-256: 9178840cb74a86703a3af294475935e35434d84f3484918e8d707b92dc3ab107
Printed once as "Warranty: Five years warranty period.". The datasheet prints no further terms.
Official datasheet: Morningstar Relay Driver datasheet (MS-003039 Rev 08/2024) (November 2, 2026 capture) Rev MS-003039 Rev 08/2024 · Checked · Earlier documentLocation: PDF page 2, Warranty
Documented
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Price from the Amazon Creators API for the New-condition featured offer. Price checked .
Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon.com at the time of purchase will apply to the purchase of this product.
The seller lists this as a new unit.
Source product page: Amazon listing B007NZBN60, identity checked through the Amazon Creators API Paid link. As an Amazon Associate we earn from qualifying purchases.CheckedProduct prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon.com at the time of purchase will apply to the purchase of this product.
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Manufacturer SKU RD-1
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