If not all wire strands fit into the terminal barrel, what should be done?

Using a larger terminal is the appropriate approach when not all wire strands fit into the terminal barrel. The purpose of a terminal is to securely connect the wire strands to ensure a reliable electrical connection. If the barrel is too small for the number of strands, attempting to force them in can lead to damage or create an unreliable connection that might result in overheating or intermittent failures.

Selecting a larger terminal allows for all wire strands to fit comfortably, ensuring adequate contact and reducing electrical resistance. This is crucial in maintaining the integrity and safety of the electrical circuit.

Other methods, like cutting the excess strands, twisting the strands together, or using soldering, can compromise the integrity of the connection or are not suitable for terminal connections that depend on secure mechanical fittings to ensure longevity and reliability.