2025-06-03
Whether cold-pressed terminals need to be tinned when wiring mainly depends on whether the wire ends are crimped firmly. If the tinning is not strong enough, tinning is not required. If special crimping pliers, hydraulic pliers, stamping and other processes are used, tinning is not required, because tinning makes the stranded wire brittle, but especially thin stranded wires should be tinned to make the wires firm.
