Number of poles 3-default; 4-4 pole
Installation Fixed type-horizontal, vertical; Drawout type-horizontal, vertical
Intelligent controller
M type / 2M type: digital display, over-current protection (overload, short delay, instantaneous), 4P or 3P+N have earthing protection.
3M type: LCD display, over-current protection.
H type / 2H type: communication function, digital display.
3H type: communication function, LCD display.
Common use accessory
Shunt release, Undervoltage release (instantaneous and time-delay), Closing electromagnet, Motor-driven energy-storage mechanism, Auxiliary contact (4a4b, 2a6b, 3a3b).
Optional accessory
Mechanical interlock (1 lock+1 key, 2 lock+1 key, 3 lock+2 keys), Automatic power transfer system, Current transformer connected with neutral lead.