The MidNite Solar MNBCB 1000/100 battery combiner box provides a central connection point for multiple battery strings. Rated at 1000A and up to 300V DC, it includes positive and negative busbars with 3/8-inch studs and a 1000A/100mV shunt for compatible current-monitoring equipment.Its powder-coated Type 1 enclosure is designed for indoor installations. Multiple conduit knockouts and mounting locations for optional circuit breakers support flexible cable routing and system layouts. The included shunt is drilled to accept the MidNite Solar WhizBang Jr. accessory. Key Features 1000A capacity: Positive and negative busbars combine high-current battery connections. 100mV shunt included: Supplied with a 1000A/100mV shunt and 1/2-inch customer connection bolt. Optional breaker provisions: Locations for large and small MNEDC circuit breakers. Flexible cable entry: Combination knockouts in multiple conduit sizes. Indoor enclosure: Type 1 environmental rating. Made in the USA: Backed by a 5-year manufacturer warranty. Technical Specifications Model MNBCB 1000/100 Current rating 1000A Maximum DC voltage 300V DC Included shunt 1000A/100mV Busbars 1000A positive and negative busbars Busbar studs 3/8 inch Shunt customer connection 1/2-inch bolt Monitoring provision Shunt drilled to accept WhizBang Jr. Enclosure Powder-coated, Type 1 indoor 3/4-inch and 1-inch combination knockouts 29 1-1/2-inch and 2-inch combination knockouts 20 Large breaker locations 12; for optional MNEDC-125 or MNEDC-175-250 breakers Small breaker locations 20; for optional MNEDC 1-100A breakers Maximum wire size 4/0 AWG Dimensions 35-1/2 x 22 x 9-3/4 inches Warranty 5 years Country of manufacture USA Included and Optional ComponentsIncludes the combiner enclosure, positive and negative busbars, and 1000A/100mV shunt. Circuit breakers and the WhizBang Jr. monitoring accessory are sold separately. Select breakers with voltage and current ratings appropriate to the installation. CompatibilityNot for use with SMA. This model includes a 100mV shunt. For applications requiring a 50mV shunt, review the MNBCB 1000/50 model and confirm system compatibility. Product Documentation Download the battery combiner brochure (PDF) View manufacturer drawings and wiring documentation