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MidNite Solar Whiz Bang Jr. MNWBJR current sense module

Model: MNWBJR · SKU: MNWBJR

Prepared Nov 12, 2026

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Common specifications

Device type	Current sense moduleSource [2]
Communications	Not documented
Supported devices	Classic and KID charge controllers; Classic Lites with the local app or an MNGPSource [2]
Ports	Not documented
Display	Not documented
Power input	Not documented
Mounting	Attaches to a 500A/50mV shunt (low-side, battery negative)Source [1]
Enclosure	Type 1Source [2]
Operating temperature	Not documented
Weight	Not documented
Dimensions	Not documented
Enclosure volume	Not documented
Warranty term	5 yearsSource [2]

All recorded specifications

Device type	Current sense moduleDocumented claim Conditions Printed as "The Whiz Bang Jr is a current sense module that attaches to the standard 50mv / 500A Shunt ( MNSHUNT )"; the installation instructions say it "provides highly accurate current sensing when used with compatible MidNite Solar products". Location: DESCRIPTION Printed as "The Whiz Bang Jr is a current sense module that attaches to the standard 50mv / 500A Shunt ( MNSHUNT )"; the installation instructions say it "provides highly accurate current sensing when used with compatible MidNite Solar products". Location: DESCRIPTION Official product page · MNWBJR product page, MidNite Solar [2]
Enclosure	Type 1Documented claim Conditions Printed as "Type 1 environmental rating". Location: DESCRIPTION Printed as "Type 1 environmental rating". Location: DESCRIPTION Official product page · MNWBJR product page, MidNite Solar [2]
Mounting	Attaches to a 500A/50mV shunt (low-side, battery negative)Documented claim Conditions Printed as "Attach Whizbang Jr. to 500A/50mV Deltec MKB Shunt or equivalent" and "The Whizbang Jr. is designed for low-side shunt measurement. Make certain shunt is attached to battery-negative, not battery-positive." Location: Step 1.1 Printed as "Attach Whizbang Jr. to 500A/50mV Deltec MKB Shunt or equivalent" and "The Whizbang Jr. is designed for low-side shunt measurement. Make certain shunt is attached to battery-negative, not battery-positive." Location: Step 1.1 Official instruction manual · Whizbang Jr. installation instructions, 10-264-1 Rev F, MidNite Solar [1]
Supported devices	Classic and KID charge controllers; Classic Lites with the local app or an MNGPDocumented claim Conditions Printed as "wires into the Classic and KID charge controllers to give Amperage readings from the shunt" and "To use the Whizbang jr (MNWBjr) with any of the Classic Lites, you will either need the local app or an MNGP." Location: DESCRIPTION Printed as "wires into the Classic and KID charge controllers to give Amperage readings from the shunt" and "To use the Whizbang jr (MNWBjr) with any of the Classic Lites, you will either need the local app or an MNGP." Location: DESCRIPTION Official product page · MNWBJR product page, MidNite Solar [2]

Warranty

Warranty term	5 yearsDocumented claim Conditions Printed as "Warranty - 5 yrs." on the product page. Location: DESCRIPTION Printed as "Warranty - 5 yrs." on the product page. Location: DESCRIPTION Official product page · MNWBJR product page, MidNite Solar [2]

Certificate records

No records documented.

Sources and revisions

Whizbang Jr. installation instructions, 10-264-1 Rev F, MidNite SolarOfficial instruction manual · Revision 10-264-1 Rev F · Checked Sep 29, 2026https://www.midnitesolar.com/pdfs/10-264-1_REV_F.pdf
MNWBJR product page, MidNite SolarOfficial product page · Checked Sep 29, 2026https://www.midnitesolar.com/productPhoto.php?product_ID=519&productCat_ID=21&sortOrder=9&act=p
Whizbang Jr. – InstallationsanleitungOfficial installation manual · Revision 10-264-1 REV-D · Checked Oct 30, 2026https://www.midnitesolar.com/pdfs/Whizbang_-_manual_de.pdf