double in-line fuse disconnector 1250 A (33731)

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Description

Part No.: 33731000A

QUADRON®185Power

double in-line fuse disconnector 1250 A

3-pole switchable

screw M12, incl. terminal compartment cover

for busbars 30, 40, 60, 80, 100, 120 x 10

System

185Power

Advantages of the product

Self-closing inspection holes are available in the cover.

Cover can be locked when closed.

Product group 12
Subgroup 55
pack size 1
EAN 4021267337315
ECLASS 6.1 27142109
ECLASS 7.1 27142109
ETIM 4.0 EC001046
ETIM 5.0 EC001046

Approvals

Standards

IEC 60947-1:2020
IEC 60947-3:2020 AC ratings only

type number: QU185-3/2x

Technical data

for fuse links size: NH 3
fuse links acc. to standard: IEC / HD 60269-2
permitted power dissipation of the fuse-link: 48 W
requirements for contact parts: Fuse links with silver-plated contact pieces recommended.
For fuse links with nickel-plated contact pieces, a reduction factor of 0.8 is to be observed.
Details IEC
Standards
IEC 60947-1:2020
IEC 60947-3:2020 AC ratings only
Electrical data IEC
rated current (IEC): 1250 A
rated voltage (IEC) AC: 690 V
rated isolation voltage Ui AC: 1000 V
rated surge voltage Uimp : 8 kV
Utilisation category AC (IEC 60947-3) : AC-20B (690 V)
Utilisation category DC (IEC 60947-3) : DC-20B
max. voltage between the fuses: 800 V
visible information required: Do not switch under load.
cond. short-circuit current with fuses (AC): 50 kA
approved wth fuse links of operation class: gG

power dissipation of the article:

The power dissipation at a typical load of 80 % results to 243.2 W.

(The power dissipation at full load would be 380.0 W.)

Supplementary data IEC

The following values have been verified with tests under certain conditions. Please ask Wöhner for this conditions before designing your panel.
A fuse-combination unit acc. to IEC 60947-3 can only be operated at a higher voltage than its rated voltage, if it is used as a fuse-disconnector without breaking capacity, up to its max. rated insulation voltage and labelled as such.

version: connection bottom

ampacity with fuses NH3 gG 500 V AC 630 A:
- 1250 A bolt connection (it's recommended to wear gloves when operating)
- 1190 A bolt connection
- 1125 A using terminal clamp 33738 or 33740

ampacity with solid links (knives) 1000 A:
- 1550 A bolt connection
- 1350 A using terminal clamp 33738 or 33740
Special operating conditions corresponding to IEC / EN 61439-1 may yield to foulty activations of pilot switches and fuse monitors. The operating conditions have to be considered for the analysis of status signals.
Degree of protection IP20 at front, degree of protection near terminal depends on installation
Mechanical data
W x H x D: 200 x 890 x 190
weight: 1556.0 kg/100
for busbars: 30, 40, 60, 80, 100, 120 x 10
CT can be integrated in the device: ja
front degree of protection: IP20
degree of protection when open: IP10

Type of fastening:
can be screwed onto drilled busbar, diameter 13 mm, undrilled mounting with terminal clamp
connection:
screw connection M12, max. 4/8 cable lugs for 300 / 240mm², for more information download mounting instruction.

Terminal points
  

screw M12 :
Md 30 Nm

Application notes

A fuse-combination unit acc. to IEC 60947-3 can only be operated at a higher voltage than its rated voltage, if it is used as a fuse-disconnector without breaking capacity, up to its max. rated insulation voltage and labelled as such.
permitted power dissipation of the fuse-link: 48 W
requirements for contact parts: Fuse links with silver-plated contact pieces recommended.
For fuse links with nickel-plated contact pieces, a reduction factor of 0.8 is to be observed.

Links

Article master data, overviews and prices

Current prices and surcharges

3D and 2D data in a wide range of formats

Downloads

| General technical information

| Mounting instructions

| CAD model 3D PDF

| CAD model 3D STP

| CAD symbol 2D DXF

| Data packet EPlan (*.edz)

| Dimensioned drawing

| EU declaration of conformity

| Product description (PDF)

| Product data for design verfication according to IEC / EN 61439-1

| Text for specification - extended version (*.rtf)

| Text for specification - standard version (*.rtf)

| Text for specification - GAEB90 (in German) (*.d81)

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https://pim.woehner.de/EN/CH/1000155834

Find your contact

to the contact site

Wöhner GmbH & Co. KG
Elektrotechnische Systeme
Mönchrödener Str. 10
96472 Rödental

Order hotline (Germany)
+49 9563 751 161
order@woehner.de

Technical hotline (Germany)
+49 9563 751 260
support@woehner.com