Measurement technique
- Measurement technique for front panel installation or mounting rail
- measurement technique for CrossBoard
  - Measuring modules
- Current transformers / measuring transformers
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    - Current transformers 5 A sec., Size CT1 (200 - 600 A)
      - Class 1
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    - Current transformers 5 A sec., Size CT2 (200 - 910 A)
    - Current transformers 5 A sec., Size CT3 (80 - 250 A)
      - Class 1
      - Class 0,5
    - Current transformers 5 A sec., Size CT4 (630 - 1600 A)
      - Class 1
  - Measuring transformers 333 mV
    - Measuring transformers 333 mV Size CT1 (200 - 500 A)
    - Measuring transformers 333 mV Size CT2 (200 - 910 A)
    - Measuring transformers 333 mV Size CT3 (100 - 150 A)
      - Class 1
      - Class 0,5
Busbar systems
- System CrossBoard® 125 A / 250 A
- System CrossBoard® 800 A
- System 30Compact, 3-pole
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  - Connection technology and covers
  - D0 fuse bases
  - NH fuse-switch-disconnectors
    - Size 000
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    - Connection modules up to 120 mm²
    - Connection modules N and PE up to 150 mm²
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  - D0 fuse bases
    - Cover for fuses bases D and D0
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  - Fuse holders for cylindrical fuses according to IEC / EN
    - Fuse holders for cylindrical fuses 10x38 acc. to IEC
  - Fuse holders for cylindrical fuses according to UL / CSA
  - Switch-disconnector-fuses D0
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  - NH fuse-switch-disconnectors
  - NH in-line fuse switch-disconnectors
    - Fuse-switch-disconnetor size 00, 3-pole switchable
  - Switch-disconnector-fuses NH
    - Size NH 00
    - Size NH 1
  - Switch-disconnectors (without fuses)
    - 160 A
    - 320 A
  - Adapters
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    - Adapters 63 A
      - Universal adapters 63 A, 3-pole
      - Special adapters 63 A, 3-pole
    - Adapters 80 A
    - Side-mounted module for adapters
    - PE/N modules
    - Adapters 100 A - 160 A
      - Special adapters 100 A - 160 A, 3-pole
    - Adapters 200 A - 290 A
    - Adapters 400 A - 630 A
  - Electronic Components
  - Special solutions for busbar systems
- System 185Power
  - Busbar supports, busbars and covers
  - Connection technology and covers
  - Basic system adapters
  - Busbar adapters 630 A to 1600 A
    - Universal adapters up to 630 A
    - Adapters for ABB MCCBs up to 1600 A
    - Adapters for Eaton MCCBs up to 1600 A
    - Adapters for General Electric MCCBs up to 1600 A
    - Adapters for Legrand MCCBs up to 1600 A
    - Adapters for Schneider Electric MCCBs up to 1600 A
    - Adapters for Siemens MCCBs up to 1600 A
    - Adapters for Socomec switch-disconnectors up to 1600 A
  - NH fuse-switch-disconnectors
  - NH in-line fuse bases
    - Size 00
    - Size 1
    - Size 2
    - Size 3
  - NH in-line fuse-switch-disconnectors
    - NH fuse-switch-disconnector size 00
      - NH fuse-switch-disconnector size 00, 1-pole switchable
        
        flat version
        
        high version
      - NH fuse-switch-disconnector size 00, 3-pole switchable
        
        flat version
        
        high version
    - NH fuse-switch-disconnector size 1
      - NH fuse-switch-disconnector size 1, 1-pole switchable
      - NH fuse-switch-disconnector size 1, 3-pole switchable
    - NH fuse-switch-disconnector size 2
      - NH fuse-switch-disconnector size 2, 1-pole switchable
      - NH fuse-switch-disconnector size 2, 3-pole switchable
    - NH fuse-switch-disconnector size 3
      - NH fuse-switch-disconnector size 3, 1-pole switchable
      - NH fuse-switch-disconnector size 3, 3-pole switchable
    - NH fuse-switch-disconnector size 3, 910 A
      - NH fuse-switch-disconnector size 3, 1-pole switchable, 910 A
      - NH fuse-switch-disconnector size 3, 3-pole switchable, 910 A
    - NH fuse-switch-disconnector size 3, 1250 A
    - NH switch-disconnectors for busbar sectioning
      - NH switch-disconnectors for busbar sectioning, 1-pole switchable
      - NH switch-disconnectors for busbar sectioning, 3-pole switchable
  - SPEED, NH in-line switch-disconnector-fuses
    - NH in-line switch disconnector fuse size 00
      - NH in-line switch disconnector fuse size 00, without fuse monitoring
      - NH in-line switch disconnector fuse size 00, with fuse monitoring
    - NH in-line switch disconnector fuse size 1
      - NH in-line switch disconnector fuse size 1, without fuse monitoring
      - NH in-line switch disconnector fuse size 1, with fuse monitoring
    - NH in-line switch disconnector fuse size 2
      - NH in-line switch disconnector fuse size 2, without fuse monitoring
      - NH in-line switch disconnector fuse size 2, with fuse monitoring
    - NH in-line switch disconnector fuse size 3
      - NH in-line switch disconnector fuse size 3, without fuse monitoring
      - NH in-line switch disconnector fuse size 3, with fuse monitoring
- Centre feed unit
  - Complete basic systems
    - Centre feed unit without terminals
  - Busbar supports, busbars and covers
  - Connection technology and covers
Panel, fuse holders
- D0 fuse bases
- D fuse bases
- NH fuse bases
- Fuse holders for cylindrical fuses according to IEC / EN
- Fuse holders for cylindrical fuses according to UL / CSA
Panel, switching devices
- Hybrid motor starters MOTUS
- Electronic motor starters MOTUS C14
- Switch-disconnector-fuses D0
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- Switch-disconnector-fuses NH, 3-pole
- Switch-disconnectors (without fuses), 2-pole
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- Switch-disconnectors (without fuses), 3-pole + N
- Switch-disconnectors (without fuses), 4-pole
- Switch-disconnectors (without fuses), 6-pole
- Changeover switches, 3-pole
- Changeover switches, 3-pole + N
- Changeover switches, 4-pole
Flexible copper busbars
- Flexible copper, tin plated
Accessories
- Fuse links and accessories D0, D and NH
  - Fuse links D0
  - Gauge rings D0
  - Screw caps D0
  - Accessories for D0 fuses
  - Fuse links D 500 V
  - Gauge elements D
  - Screw caps D
  - Accessories for D fuses
  - NH fuse links gG (gL) 400 V / 500 V
    - Size 000
    - Size 00
    - Size 1
    - Size 2
    - Size 3
    - Size 4a
  - NH fuse links gG (gL) 690 V
    - Size 000
    - Size 00
    - Size 1
    - Size 2
    - Size 3
  - Accessories for NH fuses
- Cylindrical fuse links according to IEC / EN
  - Cylindrical fuse links to IEC, gG/gL
  - Cylindrical fuse links to IEC, aR/gR
  - Cylindrical fuse links to IEC, gPV
    - Size 10x38
    - Size 10/14x85
- Cylindrical fuse links according to UL / CSA
  - Fuse links Class CC, time delay
  - Fuse links Class CC, fast acting
    - Fuse links Class CC, fast acting, Mersen ATMR
    - Fuse links Class CC, fast acting, Eaton KTK-R<\/p>
      <\/p>
  - Fuse links Class J, time delay
  - Fuse links Class J, fast acting
- Insulators
- Connection bars for PE or N
- Power distribution blocks
Value Added Services

double in-line fuse disconnector 1250 A (33731)

The picture may show a similar product.

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 U_i AC:	1000 V
rated surge voltage U_imp :	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.