Littelfuse HWB Hard-Wired Power Distribution Modules (PDMs) offer designers a variety of improvements in dealing with electrical system design challenges. PDM's for vehicles or commercial equipment feature multiple electrical power outputs, acceptance of many fuses, fuse types & relays and allow for custom configuration. With the elimination of internal bussing the user can customize their own circuitry utilizing direct wire-to-component connections.
Littelfuse HWBs are small enough to be installed almost anywhere the flow of electrical power must be protected or controlled and can accommodate from 3 (HWB6) to 30 (HWB60-AL) mini (2.8mm) plug-in circuit protection components. Accessory and overflow circuits include lift buckets, specialized lighting, motors, pumps, switches, sirens, plows, larger alternators, additional batteries, GPSs, SatCom systems, etc.
Marine, Oil and Gas equipment: All Littelfuse HWB PDM sizes are waterproof to protect the components inside from corrosion due to road splash, salt spray, and dust intrusion. HWB6, HWB12, HWB18 and HWB60-AL have Ingress Protection ratings of IP67 and IP69K (proven to resist ingress of high temperature and pressure wash). Each unit except HWB18 has two AssureLatch yellow positive-sealing latches that open easily to remove the cover for component replacement. The latches combine with the unit's gasket to keep the cover sealed securely against water and dirt intrusion.