Mersen MPDB Open-Style Power Distribution Blocks (PDBs) offer a safe and easy method of splicing cables and splitting primary power into secondary circuits. These blocks are UL- and CSA-approved while meeting spacing requirements for feeds and branch circuits in conjunction with UL 508A and the National Electrical Code. The PDB options include single or dual conductor primary inputs and up to 30 secondary outputs. Mersen MPDB Open-Style Power Distribution Blocks are available in three size categories: miniature (MPDB62 and MPDB63 series), intermediate (MPDB66 and MPDB67 series), and large (MPDB68 and MPDB69 series), in both copper and aluminum.