Scb Surge Protective Circuit Breaker Back-up Protector for SPD 4p 230/400VAC 10ka-20ka

Scb Surge Protective Circuit Breaker Back-up Protector for SPD 4p 230/400VAC 10ka-20ka. Ideal SPD Backup Solution: Specially designed to address safety risks of traditional circuit breakers or fuses for SPDs. No Nuisance Tripping: Ensures stable operation without false trips when lightning current passes through. Rapid Current Interruption: Instantly cuts off current when SPD fails due to thermal runaway or breakdown. Low Residual Voltage: Maintains low residual voltage under impulse current for enhanced safety. Wide System Compatibility: Suitable for TT, TN, and other power supply systems up to 400V AC. Proprietary Structural Design: Features independent designs for more stable performance and higher safety levels. Strict Quality Control: Operates under ISO 9001 with full-process traceability and professional training. Free Sample Availability: One free sample provided per customer, with shipping costs borne by the customer.