RAST5 złącze 4 styki + - 3 4 De Dietrich 300023694

The RAST5 connector with 4 pins and marking + - 3 4 is an electrical connector commonly used in burner control systems and boiler electronics. This connector type is designed for secure and reliable wire connections, often found in ignition transformers, flame sensors, or control modules. The pin configuration (+ - 3 4) indicates specific polarity and circuit assignments, making it suitable for precise wiring in heating equipment. When replacing damaged or loose connectors, using the correct RAST5 connector ensures proper electrical continuity and reduces the risk of intermittent faults in burner operation.