Welding connectors, also known as welding cable connectors, are used to connect welding cables to welding machines and power sources. They are available in a variety of styles, including Dinse-style, which are twist-lock connectors that create a reliable connection when twisted together:

Dinse-style
These connectors come in different sizes, with the size determined by the amperage of the welding machine. There are two types of Dinse-style connectors:

• Small “10-25” series: These connectors have a 9 mm male pin size and are commonly used on welders under 200 amps.
• Large “35-50” series: These connectors have a 13 mm male pin size and are commonly used on welders between 200–400 amps.

Spot welding connectors
These connectors are small and high-performing, with a high current-carrying capacity. They can be used to divide power cables into sections, which can make handling and maintenance easier.

Welding cables are used to power welding tools, such as electric arc welders, as well as generators and industrial equipment. Some welding tools require two power lines, one for primary power and one for secondary power