4P6 Distribution Block with 6 60FP4 Female Receptacle Outputs 3 Phase 480 Volts Input is achieved by using male positive locking connectors, which are integrally molded to the block. These connectors receive current from female positive locking connectors, on 4 separate cables. Mates with 60MFP4 and 60MNFP4 Duraline Plugs. Two grounding hooks allow the user to hang this receptacle block, for convenience. This block also has a grounding stud, for additional grounding capability.