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+1 (217) 579-8045Hart-Lock Industrial Specification Grade Locking Devices - Watertight Receptacles 20A, 3ГY 277/480V NEMA L22-20 4-Pole/5-Wire. Hart-Lock watertight devices are ideal for unique applications exposed to repeated high pressure hosedown and chemicals.SpecificationConfiguration4-Pole, 5-Wire GroundingWiring MethodBack WireRating20A 3ØY 277/480V NEMA L22-20Terminal Accommodation#14 - #8 AWGMaterialThermoplastic, glass-filled nylon