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Image source: Morningstar RB-RELAY ReadyRelay ReadyBlock, from Morningstar's own product page whose heading prints RB-RELAY (image captured November 2, 2026): a front view of the module, shown on a white backgroundNo sellers found.
Printed as "Version RB-RELAY" in the features and specification table.
Official datasheet: Morningstar ReadyRelay datasheet (MS-003813, 03/07/2023) (November 2, 2026 capture) Rev MS-003813 03/07/2023 · Checked · Earlier documentLocation: PDF page 2, Version
Documented
Printed as "Relay Type SPDT Relay Contacts NO/NC/Common" for each of the two relays.
Official datasheet: Morningstar ReadyRelay datasheet (MS-003813, 03/07/2023) (November 2, 2026 capture) Rev MS-003813 03/07/2023 · Checked · Earlier documentLocation: PDF page 2, specification table
Documented
Converted: 93.5 g / 1000 g/kg = 0.0935 kg
Printed as "Weight 3.3 Ounces (93.5 grams)" (written in kg).
Official datasheet: Morningstar ReadyRelay datasheet (MS-003813, 03/07/2023) (November 2, 2026 capture) Rev MS-003813 03/07/2023 · Checked · Earlier documentLocation: PDF page 2, specification table, Weight
Converted
Printed as "Dry contacts control • Alarm conditions signaling • Smart Load control" and "Each of the two (2) relays has the following electrical specifications".
Official datasheet: Morningstar ReadyRelay datasheet (MS-003813, 03/07/2023) (November 2, 2026 capture) Rev MS-003813 03/07/2023 · Checked · Earlier documentLocation: PDF page 1, features; PDF page 2, specification table
Documented
Printed as "Dimensions 3.96 x 0.874 x 2.42 in (100.5 x 22.2 x 61.5 mm)"; no axes are named, so the figures are kept in printed order.
Official datasheet: Morningstar ReadyRelay datasheet (MS-003813, 03/07/2023) (November 2, 2026 capture) Rev MS-003813 03/07/2023 · Checked · Earlier documentLocation: PDF page 2, specification table, Dimensions
Calculated
Printed as "ReadyBlocks automatically activate and are recognized, and are ready to go, immediately after being snapped into a ReadyRail."
Official datasheet: Morningstar ReadyRelay datasheet (MS-003813, 03/07/2023) (November 2, 2026 capture) Rev MS-003813 03/07/2023 · Checked · Earlier documentLocation: PDF page 1, description
Documented
Printed per relay as "Rated Current 6.0 A (250 Vac) 6.0 A (30 Vdc) 0.5 A (60 Vdc) 0.2 A (110 Vdc) 0.12 A (220 Vdc)"; 6.0 A is the rating at 250 Vac and 30 Vdc. The DC figures carry the note "*DC rating is for resistive loads."
Official datasheet: Morningstar ReadyRelay datasheet (MS-003813, 03/07/2023) (November 2, 2026 capture) Rev MS-003813 03/07/2023 · Checked · Earlier documentLocation: PDF page 2, specification table, Rated Current
Documented
Printed per relay as "Rated Switching Voltage* 250 Vac / 220 Vdc".
Official datasheet: Morningstar ReadyRelay datasheet (MS-003813, 03/07/2023) (November 2, 2026 capture) Rev MS-003813 03/07/2023 · Checked · Earlier documentLocation: PDF page 2, specification table, Rated Switching Voltage
Documented
Printed as "available in Morningstar “host” components featuring the ReadyRail expansion system" and "ReadyRelay installed in a GenStar MPPT charger".
Official datasheet: Morningstar ReadyRelay datasheet (MS-003813, 03/07/2023) (November 2, 2026 capture) Rev MS-003813 03/07/2023 · Checked · Earlier documentLocation: PDF page 1, description
Documented
Printed as "Relay Type SPDT Relay Contacts NO/NC/Common" for each of the two relays.
Official datasheet: Morningstar ReadyRelay datasheet (MS-003813, 03/07/2023) (November 2, 2026 capture) Rev MS-003813 03/07/2023 · Checked · Earlier documentLocation: PDF page 2, specification table
Documented
Converted: 93.5 g / 1000 g/kg = 0.0935 kg
Printed as "Weight 3.3 Ounces (93.5 grams)" (written in kg).
Official datasheet: Morningstar ReadyRelay datasheet (MS-003813, 03/07/2023) (November 2, 2026 capture) Rev MS-003813 03/07/2023 · Checked · Earlier documentLocation: PDF page 2, specification table, Weight
Converted
Printed as "Dry contacts control • Alarm conditions signaling • Smart Load control" and "Each of the two (2) relays has the following electrical specifications".
Official datasheet: Morningstar ReadyRelay datasheet (MS-003813, 03/07/2023) (November 2, 2026 capture) Rev MS-003813 03/07/2023 · Checked · Earlier documentLocation: PDF page 1, features; PDF page 2, specification table
Documented
Printed as "Dimensions 3.96 x 0.874 x 2.42 in (100.5 x 22.2 x 61.5 mm)"; no axes are named, so the figures are kept in printed order.
Official datasheet: Morningstar ReadyRelay datasheet (MS-003813, 03/07/2023) (November 2, 2026 capture) Rev MS-003813 03/07/2023 · Checked · Earlier documentLocation: PDF page 2, specification table, Dimensions
Documented
Printed as "ReadyBlocks automatically activate and are recognized, and are ready to go, immediately after being snapped into a ReadyRail."
Official datasheet: Morningstar ReadyRelay datasheet (MS-003813, 03/07/2023) (November 2, 2026 capture) Rev MS-003813 03/07/2023 · Checked · Earlier documentLocation: PDF page 1, description
Documented
Printed per relay as "Rated Current 6.0 A (250 Vac) 6.0 A (30 Vdc) 0.5 A (60 Vdc) 0.2 A (110 Vdc) 0.12 A (220 Vdc)"; 6.0 A is the rating at 250 Vac and 30 Vdc. The DC figures carry the note "*DC rating is for resistive loads."
Official datasheet: Morningstar ReadyRelay datasheet (MS-003813, 03/07/2023) (November 2, 2026 capture) Rev MS-003813 03/07/2023 · Checked · Earlier documentLocation: PDF page 2, specification table, Rated Current
Documented
Printed per relay as "Rated Switching Voltage* 250 Vac / 220 Vdc".
Official datasheet: Morningstar ReadyRelay datasheet (MS-003813, 03/07/2023) (November 2, 2026 capture) Rev MS-003813 03/07/2023 · Checked · Earlier documentLocation: PDF page 2, specification table, Rated Switching Voltage
Documented
Printed as "available in Morningstar “host” components featuring the ReadyRail expansion system" and "ReadyRelay installed in a GenStar MPPT charger".
Official datasheet: Morningstar ReadyRelay datasheet (MS-003813, 03/07/2023) (November 2, 2026 capture) Rev MS-003813 03/07/2023 · Checked · Earlier documentLocation: PDF page 1, description
Documented
Published claims and calculations, not independent test results.
Listed in Morningstar's support library https://www.morningstarcorp.com/support/library/; captured 2026-11-02T04:29:08.602Z (archived copy).
Location: PDF page 1 (description, features); PDF page 2, Features and Specification Table
Retrieved
Morningstar's own ReadyRelay ReadyBlock datasheet (Control #MS-003813, 03/07/2023), version RB-RELAY, 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 04:29:08.602 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-readyrelay-en.pdf. Copyright and takedown
Embedded dates are file metadata, not independent proof of publication.
SHA-256: 7a04ff4786611ac067d91cb8135001b051d96ec46327086d95ded51efad774ca
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-readyrelay-en.pdf. Copyright and takedown
Embedded dates are file metadata, not independent proof of publication.
SHA-256: 7a04ff4786611ac067d91cb8135001b051d96ec46327086d95ded51efad774ca
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Manufacturer SKU RB-RELAY
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