Supply & Distribution

L.V. HRC Strip Type Fuse Switch

Electrical Characteristics DNHT 00 DNHT 1 DNHT 2 DNHT 3
Rated operational voltage Ue AC500 AC500 AC500 AC500
Rated operational current le 160 250 400 630
Conventional free air thermal current with fuses Ith 160 250 400 630
Conventional free air thermal current with links Ith A 210 325 520 1000
Rated frequency Hz 50 50 50 50
Rated insulation voltage - 800 800 800 800
Rated Conditional short - circuit current kAeff 50 50 50 50
Utilization category AC-22B AC-22B AC-22B AC-22B
Rated making capacity - A 480 750 1200 1890
Rated breaking capacity Pv kV 480 750 1200 1890
Operating cycles withcurrent Ui 200 200 200 200
Total power loss at Ith lcv 20 23 38 75
Rated impulse withstand voltage(without fuse ) U¡mp W 6 6 6 6


Fuse DNHT 00 DNHT 1 DNHT 2 DNHT 3
Size to DIN 43620 0 1 2 3
Max. rated current (gL/gG) IN  160 250 400 630
Max. permissible power lose per fuse - link Pv 12 23 34 48


Mechanical Charecteristic DNHT 00 DNHT 1 DNHT 2 DNHT 3
Operating cycles without current 1400 1400 800 800
Weight kg 2,15  5 6,1  6,8
Busbar distance mm - 185 185 185 185


Cable Conneections DNHT 00 DNHT 1 DNHT 2 DNHT 3
Flat Terminal Bolt diameter - - M8 M10  M10  M12
Cable lug( DIN 46235) - mm 10 to 70 2x240  2x240  2x240
Flat bar - Nm 20x10 2x40x5  2x40x5  2x40x10
Tightening torque Ma mm2 14 32 32 32
Terminal         VK  VK 400  VK 630
Clamping cross - section - mm2 16 to 70  70 -185se  70 -185se  150 -300se
Tightening torque Ma Nm 4 22 22 22
Terminal       RK 250  RK 400  RK 630
Clamping cross - section - mm2 2x6-35  50-150se  50 -185 se  2x50 -185se
Tightening torque Ma Nm 8 22 22 22
Terminal       PR  DRK 250  DRK400  DRK 630
Tightening torque - mm² 10 to 95  2x50 -185se  2x50 -185se  2x50 -185se
Clamping cross -section Ma Nm 4 22 22 22


Type of Protec.  DNHT 00 DNHT 1 DNHT 2 DNHT 3
Front side Operational State IP 30  IP 30  IP 30  IP 30
Device fitted Front cover open IP 10  IP 10  IP 10  IP 10


Oper. Conditions DNHT 00 DNHT 1 DNHT 2 DNHT 3
Ambient temperature Tu °C -25 to +55
Rated operating mode - - Continuous operations
Actuation - - Dependent Manuel operation
Mounting position - - Vertical and horizontal
Altitude - m Up to 2000
Pollution degree - - 3
Over voltage category - - III  III  III  III
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