The trip relay of Susol ACB provides the additional protection functions for voltage, frequency, unbalance, and others in addition to main protection functions for over current, short-circuit, ground fault. It supports the advanced measurement functions for voltage, current, power, electric energy, harmonics, communication function, and others.
Analog trip function interlocked with mechanism enhanced a durability of devices as well as the breaking capacity of ACB. Zone selective interlocking function makes the protective coordination more simple and thermal memory can be applied to various loads.

■ Optimized protection function
■ OCR, OCGR function according IEC60947-2
■ Overload protection
-Long-time delay
-Thermal
■ Short-circuit protection
-Short-time delay / Instantaneous
-I 2 t On/Off optional (for short-time delay)
■ Ground fault protection
-I 2 t On/Off optional
■ Self-Power