Energy storage industry

In energy storage systems, the core function of contactors is to control the switching of main circuits/branch circuits, enabling safe energy distribution and system protection.

Schematic diagram of energy storage high-voltage cabinet circuit

Energy Storage High-Voltage Cabinet Circuit Diagram.

    Energy Storage System Product Recommendations:

    QNJ-Q Series Energy-Saving Relays     Models: QNJ-100Q/150Q/200Q/300Q/400Q/450Q series     Features: Micro-power consumption energy-saving coil (coil itself does not heat up), high insulation performance, power frequency withstand voltage 3500V.     QNJ-C Series Energy-Saving Magnetic Latching Relays     Models: QNJ-100C, QNJ-150C, QNJ-200C, QNJ-300C, QNJ-400C, QNJ-450C series     Features: Zero-power consumption bistable magnetic latching energy-saving coil (coil itself does not heat up), high insulation performance, power frequency withstand voltage 3500V.     QNZ1-Q Series Energy-Saving DC Contactors     Models: QNZ1-50Q/100Q/200Q/300Q/400Q/500Q/600Q/800Q/1000Q/1200Q/1650Q/2000Q/3500Q/5050Q     Features: Utilizes micro-power consumption coil technology (coil itself does not heat up), with high energy efficiency and surge protection. Contacts are made of silver alloy, offering strong resistance to shock and vibration, high contact pressure for reliable connection, low contact temperature rise, strong overload capability, rare-earth strong magnetic arc extinction, long electrical lifespan, strong anti-welding performance, ensuring safe and reliable operation. High insulation performance with power frequency withstand voltage of 3500V. QNZ2-H Series Energy-Saving High-Voltage DC Contactors Models: QNZ2-40HV/50HV/150H/200H/250H/300H/350H/400H/450H Features: Coil itself does not heat up, with high energy efficiency and surge protection. Contacts are non-polarized, capable of achieving 1500VDC load switching. Rare-earth strong magnetic arc extinction + airtight structure to prevent arc leakage, long electrical lifespan, strong anti-welding performance, safe and reliable. Silver alloy contacts, strong resistance to shock and vibration, high contact pressure for reliable connection, low contact temperature rise, strong overload capability. Sealed structural design with IP67 protection rating, excellent dust and water resistance. High insulation performance with power frequency withstand voltage of 3500V. QNC-WH Arc-Free Energy-Saving Three-Phase AC Contactors Models: QNC11533WH/15033WH/18533WH/20033WH/22533WH/26533WH/33033WH/40033WH/50033WH/63033WH/80033WH/100033WH/125033WH/165033WH/200033WH/350033WH/505033WH series Features: Intelligent products with voltage sag resistance, arc-free breaking, energy-saving coil (coil itself does not heat up), and communication interface capability. Among them, the QNC-5050 model has a rated current of 5050A, making it one of the highest-current AC contactors in the global market.