High Voltage Contactor – C10 Series Ceramic Sealed DC Contactors
The C8 Series offers ceramic sealed automotive contactors for up to 1500VDC—ideal for EVs, energy storage, and high voltage DC applications.
BSB’s C10 series high voltage contactors provide exceptional reliability and performance, specifically engineered for energy storage systems (ESS), megawatt charging solutions, and electric construction machinery vehicles. With ceramic sealed relay technology and rated currents from 350A to 800A, these contactors efficiently handle high voltage applications up to 1500VDC, with specialized versions available up to 2500VDC. Select models of the C10 contactor are designed to withstand short-circuit conditions up to 8kA for 5ms, offering enhanced protection and safety in high current relay environments.
High Current Capacity
Ceramic Sealed Technology
Multiple Coil Voltage Options
Low Contact Resistance
Cost-Effective Performance
RoHS and REACH compliant, automotive-grade quality
- All series are certified by UL, CE, TÜV standards
Understanding the Function of High Voltage Contactors
High voltage contactors, also known as contactor relays or electrical contactors, are crucial for safely switching high voltages and currents. The function of contactors includes isolating circuits, controlling heavy electrical loads, and providing intrinsically safe relay operations within hazardous environments.
C10 series part number
| Product | Part Number | Amp Rating | Switching Voltage | Coil Voltage Rating | Main Contact Form | Auxiliary Contact / Form | Load Termination | Mounting Type | Coil Characteristic | Certificates |
|---|---|---|---|---|---|---|---|---|---|---|
 | BSBC10-350 | 350A | 2500VDC | 12VDC, 24VDC | SPST-NO (1 Form A) | / | Female thread | / | Dual-coil | UL, CE |
| BSBC10-500 | 500A | 1500VDC | 12VDC, 24VDC | SPST-NO (1 Form A) | / | Female thread | / | Dual-coil | UL, CE, TÜV |
| BSBC10-600 | 600A | 1500VDC | 12VDC, 24VDC | SPST-NO (1 Form A) | / | Female thread | / | Dual-coil | UL, CE, TÜV |
 | BSBC10-700 | 700A | 1500VDC | 12VDC, 24VDC | SPST-NO (1 Form A) | / | Female thread | / | Dual-coil | UL, CE |
| BSBC10-800 | 800A | 1500VDC | 12VDC, 24VDC | SPST-NO (1 Form A) | / | Female thread | / | Dual-coil | UL, CE |
Technical Specifications of C10 DC Contactors
The C10 series of contactors electrical characteristics:
Rated Current: 350A to 800A
System Voltage: Standard 1500VDC (optional custom versions: 2000VDC, 2500VDC with test reports)
Coil Voltage: Options for 12V, 24V, 48V (coil voltage independent of contact voltage rating)
Certifications: Meets UL, TUV, CE, and CQC certifications, ensuring compliance with international safety and performance standards.
Applications of C10 High Voltage Contactors
BSB’s C10 high voltage contactors are designed for demanding industrial and automotive environments, including:
Battery Energy Storage Systems (BESS): Providing reliable switching for battery banks and power storage units.
Photovoltaic Inverters: Facilitating efficient and safe switching in solar power generation systems, ensuring optimal inverter operation and power distribution.
Megawatt Charging Solutions: Essential for DC contactor roles in ultra-high-power EV charging stations, facilitating rapid energy transfer.
Electric Construction Machinery Vehicles: Ensuring dependable high voltage relay functionality in heavy-duty machinery, meeting automotive-grade specifications and standards.
What is a C10 Series High Voltage DC Contactor?
The C10 series high voltage contactors from BSB Electric represent state-of-the-art electrical contactor technology. Designed with ceramic sealed relay construction, these single pole contactors are optimized for high current relay applications, including definite purpose contactor scenarios. Capable of handling system voltages of 1500VDC and specialized models up to 2500VDC, they serve as ideal solutions for high-power electric systems.
Why Choose BSB Electric's C10 Series?
BSB Electric excels in delivering general-purpose contactors tailored for advanced applications, featuring:
Industry-Leading Expertise: Decades of experience in high voltage contactors and ceramic sealed relay technology.
Customization Capabilities: Able to provide tailor-made high voltage dc contactors to meet specialized customer requirements, including extreme voltage and current scenarios.
Global Compliance and Reliability: Ensuring products meet international market needs with robust certifications and trusted quality assurance.