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LTL4a Fuse switch-disconnectors size 4a up to 1600 A

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Rated operating voltage 690 V
Rated operating current 1250, 1600 A
Utilization category (switching mode) / 400 V a.c. AC-21B
Utilization category (switching mode) / 500 V a.c. AC-22B
Utilization category (switching mode) / 690 V a.c. AC-21B
Thermal current with fuse-link 1250, 1600 A / 500 V a.c., 1000 A / 690 V a.c.
Thermal current with disconnecting link 1250A, 1600 A
Rated conditional short-circuit current (RMS) 400 V a.c. 120 kA
Rated conditional short-circuit current (RMS) 500 V a.c. 80 kA
Rated conditional short-circuit current (RMS) 690 V a.c. 50 kA
Rated impulse withstand voltage 8 kA
Rated short-time withstand current 30 kA / 35kA
Rated insulation voltage 800 V a.c.
Max. power losses of the fuse-link 110, 164 W
Power losses without fuse-link / In 67 W
Degree of protection from front side, built-in device, cover opened IP10
Degree of protection from front side, built-in device, cover closed IP20
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