IEEE C62.72a-2020 pdf download.IEEE Guide for the Application of Surge‐Protective Devices for Use on the Load Side of Service Equipment in Low‐Voltage (1000 V or Less, 50 Hz or 60 Hz) AC Power Circuits Amendment 1: SPD Disconnector Application Considerations and Coordination Annex F (informative) SPD disconnectors Insert Annex F after Annex E. F.1 Operational characteristics of SPD disconnectors This clause includes the identification of various disconnector types and their operating characteristics. F.1.1 Thermal disconnectors used in SPDs F.1.1.1 Eutectic alloy
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