YCS6-B series Surge Protection Device is suitable for TT, IT, TN-S, TN-C and TN-C-S, the power supply system with the rated voltage up to 230/400V and AC 50/60Hz. Its design corresponds to IEC61643-1. The product is usually installed in the incoming line low voltage distribution box of the building, and it can release 100kA lightning stroke current. Specification: Model NO: YCS6-B Material: Ceramic Brand : CNC Shape: Gyro Type Certification: ROHS, ISO9001, CCC Competitive Quotation: Yes Specification: 23CM Package includes: 1 x CNC AC Surge Protection Devices YCS6-B