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MidNite Solar MNPV4BY3 12 string 3 output PV combiner

Model: MNPV4BY3 · SKU: MNPV4BY3

Prepared Nov 13, 2026

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Common specifications

Device type	12 String 3 Output combinerSource [1]
PV string inputs	12Source [1]
Voltage rating	1,000 VSource [1]
Current rating	30 ASource [1]
Included breakers or fuses	30A fuses and fuse holders includedSource [1]
Enclosure	3RSource [1]
AC / DC rating	DCSource [1]
Interrupt rating	Not documented
Safety listing	Conforms to UL 1741 (UL 1741:2010 Ed.2+R:15Feb2018) and CSA C22.2#107.1:2016 Ed.4Source [2]
Mounting	Not documented
Weight	Not documented
Dimensions	134.4 D × 415.8 W × 525.8 H mm5.29 D × 16.37 W × 20.7 H inCalculatedSource [1]
Enclosure volume	29.38 L** Calculated from recorded external dimensions
Warranty term	5 yearsSource [2]

All recorded specifications

AC / DC rating	DCDocumented claim Conditions Printed as "Rated for 1000vdc". Location: DESCRIPTION Printed as "Rated for 1000vdc". Location: DESCRIPTION Official product page · MNPV4BY3 product page, MidNite Solar [1]
Current rating	30 ADocumented claim Conditions Printed as "30 amps per string"; a per-string figure, not a total. Location: DESCRIPTION Printed as "30 amps per string"; a per-string figure, not a total. Location: DESCRIPTION Official product page · MNPV4BY3 product page, MidNite Solar [1]
Device type	12 String 3 Output combinerDocumented claim Conditions Printed as "12 String 3 output combiner (Three independent 4 string combiners in one box)". Location: DESCRIPTION Printed as "12 String 3 output combiner (Three independent 4 string combiners in one box)". Location: DESCRIPTION Official product page · MNPV4BY3 product page, MidNite Solar [1]
Dimensions	134.4 D × 415.8 W × 525.8 H mm5.29 D × 16.37 W × 20.7 H inCalculated16.37 x 20.7 x 5.29 in x 25.4 mm/in, rounded to 0.1 mm Conditions Printed in the Size column as Size 16.37W x 20.70T x 5.29D; converted from inches in the printed axis order. T (tall) is recorded as height. Location: Model table, Size Printed in the Size column as Size 16.37W x 20.70T x 5.29D; converted from inches in the printed axis order. T (tall) is recorded as height. Location: Model table, Size Official product page · MNPV4BY3 product page, MidNite Solar [1]
Enclosure	3RDocumented claim Conditions Printed as "The MNPV4BY3 is 3R rated and listed for US and Canada." Location: DESCRIPTION Printed as "The MNPV4BY3 is 3R rated and listed for US and Canada." Location: DESCRIPTION Official product page · MNPV4BY3 product page, MidNite Solar [1]
Included breakers or fuses	30A fuses and fuse holders includedDocumented claim Conditions Printed as "30A fuses and fuse holders included." The page also prints "Strain reliefs included." Location: DESCRIPTION Printed as "30A fuses and fuse holders included." The page also prints "Strain reliefs included." Location: DESCRIPTION Official product page · MNPV4BY3 product page, MidNite Solar [1]
PV string inputs	12Documented claim Conditions Printed as "12 String 3 output combiner (Three independent 4 string combiners in one box)". Location: DESCRIPTION Printed as "12 String 3 output combiner (Three independent 4 string combiners in one box)". Location: DESCRIPTION Official product page · MNPV4BY3 product page, MidNite Solar [1]
Safety listing	Conforms to UL 1741 (UL 1741:2010 Ed.2+R:15Feb2018) and CSA C22.2#107.1:2016 Ed.4Documented claim Conditions Printed as "The MidNite Solar MNPV4BY3 Photovoltaic Combiner conforms to UL 1741, Safety for Inverters, Converters, Controllers and Interconnection System Equipment for Use with Distributed Energy Resources, UL 1741:2010 Ed.2+R:15Feb2018; CSA C22.2#107.1:2016 Ed.4." The maker's statement; no listing record was checked. Location: Manual page 3, Standards Printed as "The MidNite Solar MNPV4BY3 Photovoltaic Combiner conforms to UL 1741, Safety for Inverters, Converters, Controllers and Interconnection System Equipment for Use with Distributed Energy Resources, UL 1741:2010 Ed.2+R:15Feb2018; CSA C22.2#107.1:2016 Ed.4." The maker's statement; no listing record was checked. Location: Manual page 3, Standards Official instruction manual · MidNite Solar MNPV4BY3 12-string, 3-output PV combiner manual (10-555-1 REV C) [2]
Voltage rating	1,000 VDocumented claim Conditions Printed as "Rated for 1000vdc and 30 amps per string." Location: DESCRIPTION Printed as "Rated for 1000vdc and 30 amps per string." Location: DESCRIPTION Official product page · MNPV4BY3 product page, MidNite Solar [1]

Warranty

Warranty term	5 yearsDocumented claim Conditions Printed as "MidNite Solar Inc. warrants to the original customer that the MNPV4BY3 shall be free from defects in materials and workmanship. This warranty will be valid for a period of five (5) years." in the manual 10-555-1 REV C. Location: Manual page 14, MidNite Solar Inc. Limited Warranty Printed as "MidNite Solar Inc. warrants to the original customer that the MNPV4BY3 shall be free from defects in materials and workmanship. This warranty will be valid for a period of five (5) years." in the manual 10-555-1 REV C. Location: Manual page 14, MidNite Solar Inc. Limited Warranty Official instruction manual · MidNite Solar MNPV4BY3 12-string, 3-output PV combiner manual (10-555-1 REV C) [2]

Warranty term

5 yearsDocumented claim

Conditions

Printed as "MidNite Solar Inc. warrants to the original customer that the MNPV4BY3 shall be free from defects in materials and workmanship. This warranty will be valid for a period of five (5) years." in the manual 10-555-1 REV C.

Location: Manual page 14, MidNite Solar Inc. Limited Warranty

Official instruction manual · MidNite Solar MNPV4BY3 12-string, 3-output PV combiner manual (10-555-1 REV C)

[2]

Certificate records

No records documented.

Sources and revisions

MNPV4BY3 product page, MidNite SolarOfficial product page · Checked Sep 29, 2026https://www.midnitesolar.com/productPhoto.php?product_ID=760&productCat_ID=9&sortOrder=1&act=p
MidNite Solar MNPV4BY3 12-string, 3-output PV combiner manual (10-555-1 REV C)Official instruction manual · Revision 10-555-1 REV C · Checked Oct 29, 2026https://www.midnitesolar.com/pdfs/10-555-1_Rev_C_MNPV4BY3_Manual_15JUL24.pdf