MD-800AR series microcomputer protection, measurement and control device is specially designed for the box variable, ring network cabinet, small switchgear and other system applications and development, can be integrated in the circuit breaker or load switch + fuse cabinet use. With a variety of
With a variety of action characteristic curves of phase current protection, zero sequence overcurrent protection and external contact direct trip function, can be applied to busbar, line, distribution transformer, motor, capacitor and other protection occasions.