Wohner 3 Pole NH1 Fuse Holder and Off-Load Isolator up to 250A

Wohner NH1 Size High Speed AC Fuse Holder and Power Circuit off-Load Isolator for internal panel mounting.
Takes 3 x NH (Blade) type fuses in size DIN01.
250A Maximum rating

Electrical data IEC:
Rated current (IEC):250 A
Rated voltage (IEC) AC:690 V
Rated voltage (IEC) DC:440 V
Rated isolation voltage Ui AC:800 V
Rated isolation voltage Ui DC:500 V
Rated surge voltage Uimp :6 kV
Max. permitted voltage (IEC) AC725 V
Max. permitted voltage (IEC) DC800 V

Utilisation category AC (IEC 60947-3) :AC-22B (400V)
AC-23B (400V/160A)
AC-21B (690V)
AC-20B (1000V) at pollution degree 2

To obtain a higher utilisation category the product can be retrofitted with arcing chambers (see accessories)
visible information required if used at more than 690V AC: do not switch under load

Utilisation category DC (IEC 60947-3) :DC specifications: 2 current paths (L1,L3) in series
DC-20B (440V)
DC-20B (1000V) at pollution degree 2

Cond. short-circuit current with fuses (AC):100 kA / 690 V
Approved wth fuse links of operation class:gG
Rated peak withstand current  Ipk max.:13.7 kA
Rated short-time withstand current Icw (1.0 s) max.:8.1 kA

Power dissipation of the article:
The power dissipation at a typical load of 80 % results to 9.0 W.
(The power dissipation at full load would be 14.1 W.)

Visible information required if used at more than 440V DC: do not switch under load

185mm wide x 250mm high x 115mm deep.

Manufactured by Wöhner. FHPM-DIN01(33201)