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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.

More specifications

Applications

  • Panel boards for industrial use
  • Feeder pillars for industrial use
  • Meter distribution units
  • Measuring transformer cabinets
  • Transmitting stations for telecommunications

Product Specifications

项目编号

V1023081  

Catalogue No.

1.000.089  

项目描述(ERP)

MB4a 1250A 3P 1.000.089  

Description

MULTIBLOC size 4a / 1250A, 3-pole M16 terminal screws, single pole switching  

EAN/UPC 码

4027597028749  

Frequency

50 ... 60 Hz   Hz

额定交流电压 (IEC)

400   V

Ampere Rating

1250   A

使用类别

AC 22 B @ Ue = AC 400 V; Ie = 1250 A  

使用类别

DC 20 B @ Ue = DC 1000 V; Ie = 1250 A (with solid links)  

开关功能

1-,3-pole switching  

符合 ROHS 标准

Yes  

熔断器规格

4a  

设计细节

single pole switching  

极数

3-Pole  

污染程度

3  

额定负载

uninterrupted duty  

Rated Impulse Withstand Voltage

8   kV

额定绝缘电压

800   V

Rated SC Withstand

50 kA / 1 s  

Conventional Free Air thermal Current With Fuse-Links Ith

1250   A

约定自由空气发热电流 - 固态熔断体

1500   A

熔断体 Pn 的最大功耗

115   W

固态熔断体 Pn 的最大功耗

42   W

Power Dissipation by Ith without Fuse-Links

180   W

无固态熔断体时的 Ith 功耗

180   W

采用固态熔断体时的额定短路接通能力 Icm

100   kA

安装方式

Bottom Fitting/panel  

Comments

Cable termination components : M16 terminal screws  

产品重量

12.5   kg

产品宽度

378   mm

产品长度

233   mm

产品高度

330   mm

销售包装数量

1   EACH

销售包装重量

12.5   kg

销售包装宽度

400   mm

销售包装长度

400   mm

销售包装高度

290   mm