A full internal and external accessory range lets you match each breaker to the installation — operating mechanisms, releases, communication and draw-out kits.
Unit3 / Unit4 / Unit6 controllers with multiple protection curves; Unit6 adds an LCD panel and settings.
KFW3 · Source: P8–P13
LCD intelligent controller with intuitive settings; the KFM3E-1600 frame uses a knob type.
KFM3XE · Source: P33–P37
Includes the PV grid-connection module: undervoltage trip 70%–20% Un, loss-of-voltage trip below 20% Un, overvoltage protection above 135% Un, trip delay adjustable 0–10 s.
KFM3X, KFM3XE, KFM3XL · Source: P21 / P45 / P67
DC24V / DC110V / DC220V; reliable trip between 70%–110% rated control voltage; 50 cm lead as standard, 100/150 cm optional.
KFW3, KFM3X, KFM3XE, KFM3XL · Source: P8 / P38 等
Up to 10 NO + 10 NC independent contacts on KFW3; three-position and ready-to-close contacts optional.
KFW3, KFM3X, KFM3XE, KFM3XL · Source: P14–P17
New-generation DC3 mechanism; enables automatic closing with voltage check in PV grid-connection schemes.
KFM3X, KFM3XE, KFM3XL · Source: P23 / P47 / P69
Two versions available: centre (type CS1) and offset (type CS2).
KFM3XE · Source: P50 附近
Status upload for thermo-magnetic breakers once the module is fitted.
KFM3X, KFM3XL · Source: P25 / P73
Available for 400 / 800 frames only. KFW3 offers a draw-out version natively (connected / test / disconnected).
KFM3X, KFM3XE, KFM3XL · Source: P24 / P48 / P71
Combined with the KFLJ5 residual current relay to form an earth-leakage protection scheme (3P or 4P breakers).
KFM3XL · Source: P72–P73
Optional phase barriers and terminal covers; terminal covers not available for KFM3E-1600.
KFM3X, KFM3XE · Source: P28 / P50
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