connectors
Split Bolt Connectors: Sizing, Torque, Taping, and Where the NEC Won’t Let You Use One
How to size, torque, and insulate copper split bolt connectors, what the equal-range and minimum-tap figures mean, and the NEC rules that decide where a split bolt is and is not permitted.
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MC4 Solar Connector Guide: Types, Installation, and Compatibility (2026)
MC4 connectors are the universal standard for photovoltaic panel interconnections. Named for their manufacturer (Mult...
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MC4 Solar Connector Compatibility Guide: NEC 2020, UL 6703, and Intermateability (2026)
MC4 connectors are the universal standard for photovoltaic systems, but not all MC4s are created equal. Intermateabi...
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