Heavy-duty rectangular connectors suit cabinet-to-cabinet and machine panel connections, while wire-to-board connectors fit compact internal PCB wiring — compare structure, current capacity and typical applications to pick the right type.
Different industrial scenarios require different connector solutions. Two popular categories are heavy‑duty rectangular connectors and wire‑to‑board connectors.
Heavy‑duty rectangular connectors are designed for cabinet‑to‑cabinet, machine panel connection. They support high‑current power transmission, feature robust housing and good mechanical resistance. They are common for factory machinery, production line equipment and large control cabinets.
Wire‑to‑board connectors connect discrete wires directly onto PCB circuit boards. They are compact in size, mainly used inside control units, small electronic devices. Spring‑cage terminal type wire‑to‑board connectors support fast wiring without complicated crimp tools.
In short: choose heavy‑duty rectangular for machine external interconnection; choose wire‑to‑board for internal PCB wiring. Many projects will adopt both two types in one complete system.