Approvals & Standards
- IEC/EN 60 947-3
- For NH-fuse links size 4a in accordance with IEC/EN 60 269-2, VDE 0636-2
Key features & benefits
The production programme of MULTIBLOC® series 4a.ST8 - 1250 A comprises NH fuse switch disconnectors for 1250A.
They are designed for bottom fitting/panel installation and are available in single pole and triple pole units.
MULTIBLOC® size 4a are designed for NH fuse-links in accordance with IEC/EN 60269-2, VDE 0636-2, size 4a, 1250A.
MULTIBLOC® offers the user the possibility of fast and easy installation as well as a high degree of security during installation and maintenance.
Applications
- Panel boards for industrial use
- Feeder pillars for industrial use
- Meter distribution units
- Measuring transformer cabinets
- Transmitting stations for telecommunications
Documents & Resources
Datasheet
Compliance
Product Specifications
Item Number
V1023081
Catalog number
1.000.089
Description
NH fuse-switch disconnector MULTIBLOC® Size 4a 1250A 3x1-Pole switching Bottom Fitting/panel Connection Screw M16
EAN/UPC code
4027597028749
Frequency
50 ... 60 Hz
Rated voltage AC IEC
400 V
Rated current
1250 A
Utilization Category
AC 22 B @ Ue = AC 400 V; Ie = 1250 A
Utilization Category
DC 20 B @ Ue = DC 1000 V; Ie = 1250 A (with solid links)
Switchability
1-,3-pole switching
ROHS Compliant
Yes
Fuse size
4a
Design Details
single pole switching
Number of Poles
3-Pole
Degree of pollution
3
Rated Duty
uninterrupted duty
Rated Impulse Withstand Voltage Uimp
8 kV
Rated Insulation Voltage
800 V
Rated SC Withstand
50 kA / 1 s
Conventional Free Air thermal Current With Fuse-Links Ith
1250 A
Conventional Free Air thermal Current - Solid Links
1500 A
Max Power dissipation of Fuse Links Pn
115 W
Max Power dissipation of Solid Links Pn
42 W
Power Dissipation by Ith without Fuse-Links
180 W
Power Dissipation by Ith without Solid Links
180 W
Rated short circuit making capacity with solid links Icm
100 kA
Installation Mounting
Bottom Fitting/panel
Comments
Cable termination components : M16 terminal screws
Product Weight
12.5 kg
Product Width
378 mm
Product Length
233 mm
Product Height
330 mm
Sell Pack Quantity
1 EACH
Sell Pack Weight
12.5 kg
Sell Pack Width
400 mm
Sell Pack Length
400 mm
Sell Pack Height
290 mm