The C310 series bidirectional DC contactors are designed for applications with high inrush currents and large capacitive loads. With a maximum switching voltage of 1,500 V DC and a high continuous thermal current (Ith) of up to 500 A, this compact contactor provides a robust solution for various DC applications. In the event of a short circuit, the contactor can conduct up to 3,000 A for 1 second without the contacts welding, ensuring a safe and reliable disconnection of high power loads.
Thanks to its full bidirectional operation, the C310 series is ideal for charging and discharging applications in energy storage and e-mobility. With its compact construction and high insulation voltage, the series is suitable for installations with limited space, such as DC charging stations, battery storage systems, inverters, and energy recovery systems.
The series includes three variants, each tailored to specific applications:
- C310K - Suitable for DC voltages up to 1,500 V, featuring a large arc chamber for high switching capacity and additional protection at high voltages.
- C310A - Optimized for applications up to 1,000 V DC, with a smaller arc chamber for more efficient switching and reduced heat development.
- C310S - Specifically designed for lower voltages up to 60 V DC, without an arc chamber, making it ideal for applications with shorter switching times and limited space.
With these three versions, the C310 series offers solutions for a wide range of applications in energy storage, charging infrastructure, and industrial DC systems, where reliability, safety, and performance are key.
Main features of the C310 series contactors:
- Compact design with a nominal insulation voltage of up to 1,500 V DC
- High continuous thermal current Ith of up to 500 A
- Maximum making current (Icm) of up to 2,500 A
- Short-time current-carrying capacity (Icw) up to 3,000 A (1 s) without contact welding
- Full bidirectionality, suitable for charging and discharging systems
- Auxiliary switch with mirror contact function according to IEC 60947-4-1, Annex F
- Suitable for applications in e-mobility, battery storage, and DC charging infrastructure
- Horizontal and vertical mounting possible, except for upside-down installation
