The Model 51X120 8-Pin Socket can be surface or DIN-rail mounted and is suitable for use up to 600 VAC. The thermoplastic body can withstand up to 300 degrees F continuously without melting or electrical breakdown. Terminals are #6-32 screws. The one-piece, molded body does not require a separate insulator strip. (Also known as 51012001.) UL Recognized file number E-126447, CSA Certification file number LR-29513-27M and CE (European Conformity) Accepted.. Specifications: Certifications: UL, CSA, CE; Mount: DIN, Surface Mount; Voltage Range: 600 VAC