Electrical engineering toolbox
Torque Lookup
Typical terminal/lug tightening torque from UL 486A-B (NEC Annex I reprint) plus SAE/metric fastener handbook values. Manufacturer marking wins. Not a calibrated torque-tool substitute.
About this calculator
Typical terminal/lug tightening torque from UL 486A-B (NEC Annex I reprint) plus SAE/metric fastener handbook values. Manufacturer marking wins. Not a calibrated torque-tool substitute.
For design, installation, or safety decisions, verify assumptions against the applicable code edition, equipment documentation, and site requirements.
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