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Knife-type fuses (URM)

Knife-type fuses (URM)
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Knife-type fuses (URM)

Product catalog summary
Overview: The document provides comprehensive details on the specifications and characteristics of various fuses and fuse bases, including rated current, voltage, power loss, and breaking capacity. It covers different sizes and types of fuses, along with part numbers and physical dimensions.
Specifications: Fuses are categorized by size, rated voltage, operating class, and rated breaking capacity, with ratings such as AC 500 V, AC 690 V, and AC 1000 V, and breaking capacities up to 120 kA.
Electrical Characteristics: Detailed information is provided for each fuse, including rated current, power loss, pre-arcing I2t-value, and total I2t-value at specified voltages. Tables include data for fuses with combi and signal indicators, showing variations in power loss and I2t-values.
Cut-Off and Time-Current Characteristics: Diagrams and data on virtual pre-arcing time, cut-off current peak, RMS prospective current, and prospective short circuit current are provided, crucial for understanding fuse performance under different electrical conditions.
Physical Dimensions: Detailed measurements for fuse bases and external and partition walls are included, following DIN 43620 standards, with dimensions in inches and millimeters to ensure compatibility and proper installation.
Part Numbers and Packaging: Each fuse and fuse base is linked to specific part numbers, weights, and packaging details, essential for ordering and inventory management.
Key Data Extraction: Tables provide critical data such as rated current, power loss, and I2t-values, essential for selecting the appropriate fuse for specific applications. Reduction factors for total I2t-value and power loss are highlighted, indicating efficiency improvements.
Conclusion: This document serves as a comprehensive guide for selecting and understanding the specifications of fuses and fuse bases, ensuring safety and efficiency in electrical systems.
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Catalog excerpts

Knife-type fuses (URM)-1

6. Kapitel URL neu table.main {} tr.row {} td.cell {} div.block {} div.paragraph {} .font0 { font:5.00pt "Arial", sans-serif; } .font1 { font:11.00pt "Arial", sans-serif; } .font2 { font:13.00pt "Arial", sans-serif; } .font3 { font:37.00pt "Arial", sans-serif; } fsBA) nmi SICHERUNGEN/FUSES Fuses for Semiconductor Protection Knife Blade Contact - German Standard SIBA ultra-rapid knife blade contact fuses-type NH are available in many different sizes and four voltage ratings. They follow DIN/VDE - IEC standard and can be fitted in open fuse bases. Usage in fuse-bases or switches requires the comparison of the power loss of the fuse with the power acceptance of the base or switch. All SIBA type NH-fuses are available with either integral blown fuse-indicator or a separately fitted trip indicator fuse for microswitch operation. Classes: aR/gR Sizes: 000 / 00 / 0 / 1 / 2 and 3 Voltage ratings: AC 500 V - 2000 V Current ratings: 16 A up to 800 A Features / Benefits H High interrupting rating up to 120 kA H Voltage rating AC 500 V - AC 2000 V H Compliance with DIN 43620 and DIN 43653 standards H Fuses with blown fuse combination indicator H Class aR according to IEC 60269-4 and DIN VDE 0636-40 and Class gR according to DIN VDE 0636-40 H Fuse-bases / switches and accessories are available www.siba.de

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Knife-type fuses (URM)-3

7. Kapitel URM neu table.main {} tr.row {} td.cell {} div.block {} div.paragraph {} .font0 { font:5.00pt "Arial", sans-serif; } .font1 { font:7.00pt "Arial", sans-serif; } .font2 { font:10.00pt "Arial", sans-serif; } .font3 { font:11.00pt "Arial", sans-serif; } .font4 { font:12.00pt "Arial", sans-serif; } .font5 { font:13.00pt "Arial", sans-serif; } .font6 { font:6.00pt "Franklin Gothic Medium", sans-serif; } SICHERUNGEN/FUSES <fc. Fuses for Semiconductor Protection Knife Blade Contact - German Standard Size Rated Voltage Part No. With Integral External Techn. Micro Switch Data M [Page] 00 500/690...

 Open the catalog to page 3
Knife-type fuses (URM)-16

6. Kapitel URL neu table.main {} tr.row {} td.cell {} div.block {} div.paragraph {} .font0 { font:5.00pt "Arial", sans-serif; } .font1 { font:7.00pt "Arial", sans-serif; } .font2 { font:8.00pt "Arial", sans-serif; } .font3 { font:10.00pt "Arial", sans-serif; } .font4 { font:11.00pt "Arial", sans-serif; } .font5 { font:13.00pt "Arial", sans-serif; } .font6 { font:5.00pt "Franklin Gothic Medium", sans-serif; } SU HERUNGEN/FUSES Fuses for Semiconductor Protection Knife Blade Contact - German Standard Size Rated Voltage 3 AC 1000V Top Indicator Rated Current [A] Part No. UL Rec. Class Weight [kg/1]...

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Knife-type fuses (URM)-17

6. Kapitel URL neu table.main {} tr.row {} td.cell {} div.block {} div.paragraph {} .font0 { font:5.00pt "Arial", sans-serif; } .font1 { font:8.00pt "Arial", sans-serif; } .font2 { font:10.00pt "Arial", sans-serif; } .font3 { font:11.00pt "Arial", sans-serif; } .font4 { font:13.00pt "Arial", sans-serif; } .font5 { font:6.00pt "Franklin Gothic Medium", sans-serif; } SICHERUNGEN/FUSES <fc. Fuses for Semiconductor Protection Knife Blade Contact - German Standard Size Rated Voltage 3 AC 2000V Top Indicator Rated Current [A] Part No. UL Rec. Class Weight [kg/1] Pack 200 20 404 04.200 aR 1.7 224 20...

 Open the catalog to page 17
Knife-type fuses (URM)-21

7. Kapitel URM neu table.main {} tr.row {} td.cell {} div.block {} div.paragraph {} .font0 { font:4.00pt "Arial", sans-serif; } .font1 { font:5.00pt "Arial", sans-serif; } .font2 { font:6.00pt "Arial", sans-serif; } .font3 { font:7.00pt "Arial", sans-serif; } .font4 { font:8.00pt "Arial", sans-serif; } .font5 { font:10.00pt "Arial", sans-serif; } .font6 { font:11.00pt "Arial", sans-serif; } .font7 { font:12.00pt "Arial", sans-serif; } .font8 { font:13.00pt "Arial", sans-serif; } .font9 { font:4.00pt "Franklin Gothic Medium", sans-serif; } .font10 { font:5.00pt "Franklin Gothic Medium", sans-serif;...

 Open the catalog to page 21
Knife-type fuses (URM)-31

7. Kapitel URM neu table.main {} tr.row {} td.cell {} div.block {} div.paragraph {} .font0 { font:5.00pt "Arial", sans-serif; } .font1 { font:7.00pt "Arial", sans-serif; } .font2 { font:8.00pt "Arial", sans-serif; } .font3 { font:11.00pt "Arial", sans-serif; } .font4 { font:13.00pt "Arial", sans-serif; } .font5 { font:22.00pt "Arial", sans-serif; } .font6 { font:27.00pt "Impact", sans-serif; } .font7 { font:18.00pt "Lucida Sans Unicode", sans-serif; } fsBA) nmi SICHERUNGEN/FUSES Size Rated Voltage Standard Fuse-Bases 1 pole 000 + 00 AC 500/660/690 V DIN 43620 Rated Current Part No. Weight Pack...

 Open the catalog to page 31
Knife-type fuses (URM)-32

7. Kapitel URM neu table.main {} tr.row {} td.cell {} div.block {} div.paragraph {} .font0 { font:5.00pt "Arial", sans-serif; } .font1 { font:7.00pt "Arial", sans-serif; } .font2 { font:8.00pt "Arial", sans-serif; } .font3 { font:11.00pt "Arial", sans-serif; } .font4 { font:13.00pt "Arial", sans-serif; } .font5 { font:22.00pt "Arial", sans-serif; } URM SICHERUNGEN/FUSES Size Rated Voltage Standard Fuse-Bases 3 pole 000 + 00 AC 500/660/690 V DIN 43620 Rated Current Part No. Weight Pack [A] [kg/1] 160 21 001 03 0.81 1 Q - -r I- -j Part No. 21 001 03 A 3.94" (100 mm) B 0.80" (20 mm) C 1.26" (32...

 Open the catalog to page 32
Knife-type fuses (URM)-34

7. Kapitel URM neu table.main {} tr.row {} td.cell {} div.block {} div.paragraph {} .font0 { font:5.00pt "Arial", sans-serif; } .font1 { font:7.00pt "Arial", sans-serif; } .font2 { font:8.00pt "Arial", sans-serif; } .font3 { font:11.00pt "Arial", sans-serif; } .font4 { font:13.00pt "Arial", sans-serif; } .font5 { font:22.00pt "Arial", sans-serif; } .font6 { font:10.00pt "Impact", sans-serif; } URM SICHERUNGEN/FUSES Size Rated Voltage Standard Fuse-Bases 3 pole 1 + 2 AC 500/660/690 V DIN 43620 Rated Current [A] Part No. Weight [kg/1] Pack 250 21 003 03 2.36 1 400 21 004 03 3.15 1 Size 1 Part No....

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*Prices are pre-tax. They exclude delivery charges and customs duties and do not include additional charges for installation or activation options. Prices are indicative only and may vary by country, with changes to the cost of raw materials and exchange rates.