DNH5-250,400,630/3S Vertical Fuse Switch Disconnector

DNH5-250,400,630/3S Vertical Fuse Switch Disconnector

  DNH5 series vertical fuse switch disconnector are designed for the distribution of electricity and protection against short circuits and overloads in three phase alternative current circuits.They are intended for direct installation on horizontal or vertical busbar systems.Their modern and compact design give much saving of space in substations and distribution boards.Removal of the fuse link provides clearly noticeable,large isolating distance in the circuit.

Fuse size

 

1

 

2

 

3

 

Pole

 

 

3

 

3

 

3

 

Busbar distance

 

 

185mm

 

185mm

 

185mm

 

Switching mechanism

 

 

 

1-p switching

1-p switching

1-p switching

Rated operating voltage

Ue

V

AC690

 

AC690

 

AC690

 

Rated operating current

Ie

A

250

 

400

 

630

 

Thermal current with fuse-link

Ith

A

250

 

400

 

630

 

Utilisation category AC (IEC 60947-3)

 

AC-21B(690V)

AC-21B(690V)

AC-21B(690V)

Rated surge voltage Uimp

 

kV

6

 

6

 

6

 

Mounting position

 

 

Vertical

 

Vertical

 

Vertical

 

Degree of protection

At front

IP30

 

IP30

 

IP30

 

Rated short-circuit current with fuses(690V)

kA

50

 

50

 

50

 

Connection screw

M10,30Nm torque

M10,30Nm torque

M12,35Nm torque

 

 

 

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