Features High Voltage and Amperage: This 250V 45A square connector with 4 holes and a 28mm head size provides a powerful and reliable power supply for various applications. Long-lasting Durability: With the ability to withstand over 500 repeated plugging cycles, the gold plated solid copper pin offers anti-oxidation properties and a prolonged service life. Reliable Waterproof Performance: Constructed with PA66 and PA6 materials, the shell ensures corrosion and temperature resistance, while the silicone cover guarantees IP68 waterproof performance, making it suitable for outdoor use. Secure and Firm Connection: The option for soldering the cable connection ensures a secure and firm connection, reducing the risk of loosening, ideal for outdoor and rugged environments. Versatile Application: Perfect for a wide range of applications including communication equipment, instrumentation, computers, program-controlled machines, and alarm bridges. Specification: Item Type: Waterproof Connector Material: PA66 + PPS + Silicone + Copper Application: Widely used in communication equipment, instrumentation, computers, program controlled machine, alarm bridge electronic equipment, etc. Shell Material: PA66, PA6 Insulator: Thermoplastic PPS (high temperature resistant 220℃). Contact Material: Copper (gold plated). Connection Method: Soldering (if solder paste is used, it must be cleaned). Connection Method: Threaded connection. Head Size: Approx. 28mm / 1.1in Insulation Resistance: 2000MΩ Copper Needle Diameter: Approx. 3.6mm / 0.14in Copper Pin Applicable Cable: 0.5-4mm2 Applicable Current: 45A Applicable Voltage: 250V Applicable Cables for Shell: Φ10-15mm2 Installation Hole Distance: Approx. 30 x 30mm / 1.18 x 1.18in Plugging Times: More than 500 times. Operating Temperature Range: -25℃ to 85℃. Tightness: Conform to IP68. Package List: 1 x Male Connector 1 x Female Connector Note: Please supply power according to the use voltage, using other voltages may cause fire and product damage. Package List 1 x Male Connector 1 x Female Connector