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Renogy REGO 3 Port 400A Battery Combiner Box (REC400RBCB-3P-US)

Name: Renogy REGO 3 Port 400A Battery Combiner Box (REC400RBCB-3P-US)
Brand: Renogy
SKU: REC400RBCB-3P-US

By RenogySKU REC400RBCB-3P-US

Combiner boxes, disconnects and E-Panels

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Device typeBattery combiner box for up to 3 REGO batteries PV string inputsNot stated Voltage ratingNot stated Current rating400 A Included breakers or fusesNot stated EnclosureNot stated

Key specs

Units

SKU: REC400RBCB-3P-US
Official product page
Sources
Printed as "sku":"REC400RBCB-3P-US" for the option "Default Title" in Renogy's own US store product data, captured November 1, 2026.
Official product page: Renogy US store product data: REGO 3 Port 400A Battery Combiner Box (November 1, 2026 capture) Checked Nov 1, 2026 · Earlier document
Location: variants, option "Default Title", sku
Documented
Weight: 10 kg22 lb converted
Official product page
Sources
Printed as "Weight: 10.0 kg (22.05 lbs)".
Official product page: Renogy US store product data: REGO 3 Port 400A Battery Combiner Box (November 1, 2026 capture) Checked Nov 1, 2026 · Earlier document
Location: Store page specification block, Weight
Documented
Device type: Battery combiner box for up to 3 REGO batteries
Official product page
Sources
Printed as "One Battery Combiner Box can connect with up to 3 REGO batteries."
Official product page: Renogy US store product data: REGO 3 Port 400A Battery Combiner Box (November 1, 2026 capture) Checked Nov 1, 2026 · Earlier document
Location: Store page description and title
Documented
AC / DC rating: DC
Official product page
Sources
A battery combiner box on the DC battery side; printed as "Designed specifically to work with REGO batteries with 300A max charging current, and 350A max discharging current".
Official product page: Renogy US store product data: REGO 3 Port 400A Battery Combiner Box (November 1, 2026 capture) Checked Nov 1, 2026 · Earlier document
Location: Store page description
Documented
Dimensions: 15.8 L
Calculated: Enclosure volume: W × H × D ÷ 1,000,000
346 × 225 × 203 mm13.6 × 8.86 × 7.99 in convertedOfficial product page
Sources
Printed as "346 x 225 x 203 mm (13.62 x 8.86 x 7.99 inch)"; no axes are named, so the figures are kept in printed order.
Official product page: Renogy US store product data: REGO 3 Port 400A Battery Combiner Box (November 1, 2026 capture) Checked Nov 1, 2026 · Earlier document
Location: Store page specification block, Dimension
Calculated
Connection: 4 Gray Anderson 350 connectors; 2 M8 insert terminals (M8 x 1.25 x 20 mm screws)
Official product page
Sources
Printed as "Connector: Gray Anderson 350 Connectors (4)", "Terminal: M8 Insert Terminals (2)" and "Terminal Screw: M8 x 1.25 x 20 mm"; the connector is rated 600VAC/DC and 500A.
Official product page: Renogy US store product data: REGO 3 Port 400A Battery Combiner Box (November 1, 2026 capture) Checked Nov 1, 2026 · Earlier document
Location: Store page specification block, Connector and Terminal
Documented
Current rating: 400 A
Official product page
Sources
Printed as "Rated Current: 400A".
Official product page: Renogy US store product data: REGO 3 Port 400A Battery Combiner Box (November 1, 2026 capture) Checked Nov 1, 2026 · Earlier document
Location: Store page specification block, Rated Current
Documented
Operating temperature: -20 to 50 °C-4 to 122 °F converted
Official product page
Sources
Printed as "-4°F~122°F (-20°C~50°C)".
Official product page: Renogy US store product data: REGO 3 Port 400A Battery Combiner Box (November 1, 2026 capture) Checked Nov 1, 2026 · Earlier document
Location: Store page specification block, Operating Environment Temperature
Documented

All specs7

Weight: 10 kg22 lb converted
Official product page
Sources
Printed as "Weight: 10.0 kg (22.05 lbs)".
Official product page: Renogy US store product data: REGO 3 Port 400A Battery Combiner Box (November 1, 2026 capture) Checked Nov 1, 2026 · Earlier document
Location: Store page specification block, Weight
Documented
Device type: Battery combiner box for up to 3 REGO batteries
Official product page
Sources
Printed as "One Battery Combiner Box can connect with up to 3 REGO batteries."
Official product page: Renogy US store product data: REGO 3 Port 400A Battery Combiner Box (November 1, 2026 capture) Checked Nov 1, 2026 · Earlier document
Location: Store page description and title
Documented
AC / DC rating: DC
Official product page
Sources
A battery combiner box on the DC battery side; printed as "Designed specifically to work with REGO batteries with 300A max charging current, and 350A max discharging current".
Official product page: Renogy US store product data: REGO 3 Port 400A Battery Combiner Box (November 1, 2026 capture) Checked Nov 1, 2026 · Earlier document
Location: Store page description
Documented
Dimensions: 346 D × 225 D × 203 D mm13.6 D × 8.86 D × 7.99 D in converted
Official product page
Sources
Printed as "346 x 225 x 203 mm (13.62 x 8.86 x 7.99 inch)"; no axes are named, so the figures are kept in printed order.
Official product page: Renogy US store product data: REGO 3 Port 400A Battery Combiner Box (November 1, 2026 capture) Checked Nov 1, 2026 · Earlier document
Location: Store page specification block, Dimension
Documented
Connection: 4 Gray Anderson 350 connectors; 2 M8 insert terminals (M8 x 1.25 x 20 mm screws)
Official product page
Sources
Printed as "Connector: Gray Anderson 350 Connectors (4)", "Terminal: M8 Insert Terminals (2)" and "Terminal Screw: M8 x 1.25 x 20 mm"; the connector is rated 600VAC/DC and 500A.
Official product page: Renogy US store product data: REGO 3 Port 400A Battery Combiner Box (November 1, 2026 capture) Checked Nov 1, 2026 · Earlier document
Location: Store page specification block, Connector and Terminal
Documented
Current rating: 400 A
Official product page
Sources
Printed as "Rated Current: 400A".
Official product page: Renogy US store product data: REGO 3 Port 400A Battery Combiner Box (November 1, 2026 capture) Checked Nov 1, 2026 · Earlier document
Location: Store page specification block, Rated Current
Documented
Operating temperature: -20 to 50 °C-4 to 122 °F converted
Official product page
Sources
Printed as "-4°F~122°F (-20°C~50°C)".
Official product page: Renogy US store product data: REGO 3 Port 400A Battery Combiner Box (November 1, 2026 capture) Checked Nov 1, 2026 · Earlier document
Location: Store page specification block, Operating Environment Temperature
Documented

Published claims and calculations, not independent test results.

Documents

1 on file

WEB
Renogy US store product data: REGO 3 Port 400A Battery Combiner Box (November 1, 2026 capture)OfficialRenogyOfficial product page
Source details
Revision
Not stated
Revision date
Not stated
Archived copy captured on 2026-11-01.
Location: "title", "description" (specification block) and "variants" (title, sku)
Retrieved Nov 1, 2026
Renogy's own US store (renogy.com) product data for its listing "REGO 3 Port 400A Battery Combiner Box" (the store's .js product endpoint), captured on November 1, 2026 at 23:21 UTC with the paced research fetcher (HTTP 200): the listing title, description, specification block and each option's title and SKU. It establishes the exact store SKU and that Renogy's US store sells it; manufacturer statements, not independent tests. Prices are not recorded from it.
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