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December 2019 – SIBA Fuses

Published on: 19/12/2019

Introducing SIBA’s extensive range of semiconductor fuses

Siba Fuses Catalogue image

Get to Know SIBA Fuses

SIBA has over 60 years of experience in the development, design and production of fuses. SIBA boosts a broad portfolio of fuses, offering an extensive range of ultra rapid, industrial and medium voltage fuses. They react fast, invest in research and development and have a worldwide presence in the world of fuses, covering the whole range from miniature devices for electrical components to high voltage installations. SIBA’s specialised fuses safeguard products, machinery and personnel.


Ultra Rapid Fuses

Class: aR

Voltage ratings: AC 660V – AC 1000V

Current ratings: 16A to 400A

Standards: DIN 43653, IEC 60269-1 and -4, DIN VDE 0636-40 and UL 248-13



  • Extremely high interrupting rating 100kA – 300Ka
  • Voltage ratings AC 660V – AC 1000V
  • Protection of power semiconductors according to IEC 60269-1 and -4
  • Complies with din 43653 – SIZES 000 and 00 with or without Topindicator and trip microswitch
  • Ar class 16A-400A according to IEC 60269-4 and DIN VDE0636-40
  • Fuse bases and accessories available

Find out more about SIBA Ultra Rapid Fuses


High Voltage Fuses

SIBA’s high voltage fuses have parallel connected pure silver fuse elements. The design ensures narrow tolerances of time-current characteristics. SIBA’s fuse elements are wound on a ceramic support and are attached to the silver plated connection caps by means of spot-welding. The connection caps are fitted inside the silver plated copper end caps by spot welding and the end caps are press-fitted onto the porcelain tube. The end caps are mechanically fixed to the tube and additionally sealed by a durable elastic sealing medium.

SIBA’s high voltage fuse-links are used as protection devices in medium voltage switchgear. A major advantage of the HV fuses is the very fast current limiting operation in the event of a short circuit failures. They protect switchgear and equipment against dynamic thermal affects of such short circuits in a very effective way. SIBA’s high voltage fuse-links are used to protect: distribution transformers, motor circuits, capacitor banks, voltage transformers and cable feeders.



  • Reliable sealing system against humidity, dust and corrosion
  • Free of aging
  • Low power losses and low temperature rise
  • High breaking capacity
  • Fast current limitation
  • Low switching voltage
  • High severe reliability because of advanced controlled fabrication process
  • Many decades of positive field experience

SIBA’s high voltage fuse-links are suitable for: indoor switchgear, outdoor switchgear, overhead lines, service under severe climatic conditions, installation in oil-insulated switchgear or inside distribution transformers under oil.

SIBA’s high voltage fuse range offers reliable protection for your products, they also have an R&D department that are capable of meeting custom requirements.

Find out more about SIBA High Voltage Fuses


Low Voltage Fuses

SIBA’s low voltage fuse links are available in a large variety if voltage ratings, body sizes and operating classes.

Classes: gG, gB, aM, gTr, gTF

Sizes: 000, 00, 0, 1, 2, 3, 4 and 4a

Voltage Ratings: AC – 400/500/690/1000/1500V, DC – 220/400/440V



  • Combination indicator (top and centre) for easy identification of blown fuses
  • High interrupting rating up to 120Ka
  • Voltage ratings AC 400-1500V
  • Operating classes gG/gB/aM/gTr/gTF available for all applications
  • Fuse-bases and accessories available, made of sheet steel base plate with ceramic support
  • Low power losses and low temperature rise
  • All fuse-links are entirely corrosion resistant
  • Gripping-lugs: metal/live for standard application, metal/insulated for increased safety

Find out more about SIBA Low Voltage Fuses


Miniature Fuses

SIBA’s miniature fuses are automatic switchgears that protect electrical plants, appliances and modules from inadmissibly high current loads. SIBA’s miniature fuses are used to safeguard power supplies and power output amplifiers in consumer electronics. They are commonly used in industrial applications as primary fuses, where in the event of a fault they separate the defective module from the voltage supply in order to predict greater damage. 

Find out more about SIBA Miniature Fuses 


GD Rectifiers have access to a large number of ultra rapid, high voltage and low voltage fuses. They offer competitive pricing, fast delivery and extensive technical support.

GD Rectifiers stock a wide range of fuses from some of the world’s leading suppliers, including: semiconductor fuses, high speed fuses, high voltage fuses, IEC and British standard fuses, industrial fuses, medium voltage fuses, industrial power and UL fuses, Low voltage UL and CSA branch circuit fuses, specialty power fuses, resettable PTC fuses and square body fuses.


For further information on GD Rectifiers’ wide range of fuses or to discuss your requirements, please call the team today on: 01444 243 452 or email:


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