Ensure terminal connections in distribution boards meet 1. Copper lugs under 50 mm² require 1. 8 Nm regardless of cross-section. Over-tightening risks thread stripping; under-tightening causes resistive. Torque electrical connections to the values recommended in the following tables. Hex Head Bolt (2) Conical Washers lb-in. Proper mechanical torque ensures that the connections are secure, minimizing the risk of loose or overheating connections that can lead to electrical arcing, fire. Torque is the rotational force applied to a screw, terminal or nut to tighten it properly, without overtightening or under-tightening it. Why is this important? The tightening torque is important for: safety, durability, electrical reliability and product.
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