KEL Corporation Develops "FG Series" High-Current Battery Connectors

KEL Corporation (Headquarters: Tama City, Tokyo; President: Akira Kasuga) is developing the "FG Series" high-current battery connectors for connecting batteries to equipment requiring high current. Product Overview: Signal terminals feature 2-point contacts, and power terminals feature 8-point contacts, ensuring high contact reliability. Each power terminal is expected to handle 40A to 50A. The connector is planned to have 2 poles for power terminals and 6 poles for signal terminals. It is equipped with a guiding mechanism allowing for ±3.5mm in the X direction and ±2.8mm in the Y direction. The movable screw-fastening part on the plug side connector can absorb up to ±0.7mm in the XY direction. Product Specifications: Plug side connector insulator material is 9T nylon with glass fiber, UL94V-0, black. Contact material is copper alloy. Contact finish includes nickel plating undercoat, gold plating on power contact (contact area), and tin plating on power contact (solder area). Signal contact has gold plating (contact area) and tin plating (tail area). Rivet/washer material is stainless steel. Receptacle side connector insulator material is PBT with glass fiber, UL94V-0, black. Contact material is copper alloy. Contact finish includes nickel plating undercoat, gold plating on power contact (contact area), gold plating on power contact (solder area), gold plating on signal contact (contact area), and nickel plating on signal contact (crimp area). Performance: Rated current for power contact is 50A/1PIN (AWG#6) or 40A/1PIN (AWG#8). Signal contact is 3.0A/1PIN (AWG#18/20). Contact resistance is 3mΩ or less for power contacts and 10mΩ or less for signal contacts. Withstanding voltage is AC 2,000V for 1 minute for power contacts and AC 1,000V for 1 minute for signal contacts. Insulation resistance is DC 500V, 1,000MΩ or more. Insertion/extraction durability is 500 cycles. Operating temperature range is -55℃ to +105℃. Applicable cables are AWG#6/8 for power contacts and AWG#18/20 for signal contacts. Applications include industrial equipment markets such as UPS, lighting equipment, agricultural machinery, construction machinery, and drones. Product samples will be available from May 2026. Sales are scheduled to begin in June 2026. KEL Corporation, founded in 1962, is a specialized manufacturer of industrial connectors. Its connectors are used as key parts in electronic devices across various markets, including industrial equipment, automotive, imaging, medical, and communication equipment.