Semiconductor Protection Fuses

• Semiconductor fuses
• Medium voltage fuses
• Fuse high voltage
• Low voltage fuses
• Miniature cylindrical fuses

Hill Technical Sales specializes in providing innovative fuse protection for:

• High power semiconductors
• Medium voltage capacitors

Fuses for semiconductor protection offer high current interrupt capabilities for short circuit faults with lower values of I2T and power losses. Fuses are IEC and UL recognized.

Our fuses for medium voltage capacitors and capacitor banks have high interrupt rating of 63kA and can be directly mounted to capacitor bushing with: threaded holes on both ends, a threaded hole and L-bracket or L-brackets on both sides. Specials mounting for your unique requirements are available.

We also have fuses for medium and high voltage applications like; switch gear, motor protection, transformers including submersibles and cable feeders.

Other lines of fuses include, miniature electronic fuses, bottle fuses, DIAZED, NEOZED, and cylindrical type. Some of our fuse products have been designed for specific use or applications such as traction, rectifiers, inverters, converters, mining, drives, UPS, Forklift, and marine.

North American and European Standard TYPE SQB Sizes 1, 2, 3 AND 4

Long blade version

• Very high interrupting rating up to 70 kA
• High ratings of voltages up to 10 kV
• Large range of current ratings available for semiconductor protection
• Fuse bases, clips and accessories are available

Capacitor protection fuses can easily be fitted directly onto capacitor bushings, because they can be fitted with threaded holes at either ends, or threaded one end and with bracket on the other end. Their electrical characteristic being current limiting back up suits the protection requirements of capacitors. Characteristic following capacitor protection needs for back up protection. Cartridge type current limiting Special mounting brackets available on request.

The connection caps are fitted inside the silver plated copper end caps by spot welding. The copper end caps themselves are press-fitted onto the porcelain tube, which is glazed inside and outside. The end caps are furthermore mechanically fixed to the porcelain tube and additionally sealed by a durable elastimer sealing medium. This sealing method has been proven over many decades of positive field experience and ensures tightness against ingress of humidity. Inquires for fuse high voltage custom applications are welcome.

European Standard For Installation Inside Transformers Under Oil.

These are general-purpose fuses for installation in transformers; they offer space and cost saving in distribution transformer substation design. They are designed to protection against short-circuit and internal transformer faults and also offer bursting protection of the transformer through specific characteristic of the fuse-link resistance against ageing

Medium voltage fuses according British Standard are backup fuses for the protection of substations up to 24 kV. The fuse links of this section comply with the following national and international standards:

• IEC 60282-1

• BS 2692

• ESI 12-8

Design and construction of these fuses follow the well-proven concept of all high-voltage fuse-links. Pressure resistant encapsulation and a high-grade ceramic is used. Contact material consists of silver plated high conductivity copper. The pure silver melting elements are provided with appropriate notches to ensure small time/current-curve tolerances and low let-through currents. The arc quenching quartz sand is subject to special survey criteria regarding its composition, grain size and humidity content.

For Air & Gas Insulated Switchgears Outdoor Switchgears High-Voltage fuse-links of size 55 x 520 mm are suitable for the protection of power transformers used in energy distribution. Usually they are used for indoor application, outdoor use is possible. In case of a short circuit the fuse will interrupt fault currents between five times the fuse rated current and the rated breaking current.

Standards:

• IEC 60282-1

• NFC 64210

Medium voltage fuses Plug-in fuses for overhead lines

Medium voltage fuse links including overhead line connectors are provided as a set. They allow in overhead lines to provide fuse protection on pole mounted distribution transformers. The set consists of a high voltage fuse link including a set of connectors.

Description: European NH Knife-Blade Fuse System

SIBA NH Fuse-links with top and center indicator are available in a large variety of voltage ratings, body sizes and operating classes:

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

Voltage ratings: AC 400 / 500 / 690 / 1000 / 1500 V

Fuse bases and accessories available, made of sheet steel base plate with ceramic support Low power losses and temperatures

All fuse links are corrosion resistant

Standards:

IEC 60269-1-2 / EN 60269-1-2
DIN VDE 0636 part 201
DIN VDE 0636 part 2011
DIN 43620

Approvals: Germany, Austria, Switzerland

Combination indicator (top and center) for easy identification of blown fuses

High interrupting rating up to 120 kA

Voltage ratings AC 400 - 1500 V

Operation classes gG, gB, aM, gTr, and gTF available for all applications

Removal tags: Standard design in metal, insulated removal tags available.

They are designed to protect power semiconductors according to IEC 60269-1 IEC 60269-4 and comply with DIN 43653. Fuses are available without or with top indicator or with microswitch.

aR class 10 A - 400 A according to IEC 60269-4 and DIN VDE 0636-40. Fuse bases and accessories are also available.

Sizes 000 And 00

Class: aR

Voltage rating: AC 660 V - AC 1000 V and 750VDC (when used as a DC fuse)

Current rating: 10 A to 400 A

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

These fuses have extremely high interrupting rating 100 kA - 300 kA with voltage ratings AC 660 V - AC 1000 V

TYPE D0 fuse / D fuse

D Fuses, also known as type Diazed/ Neozed fuses are supplied in the following sizes, ND, DII, DIII, DVI, DV, D01, D02, and D03. All fuses have color-coded blown fuse indicators.

Voltage rating: AC 440 V - AC 500 V

Current rating: 2 A to 200 A

Class: gR / aR / aRL

Standards: IEC 60269-4, DIN VDE 0636-40 DIN 49515 / 49360

Class gR for rated currents up to 100 A

Class aR for rated currents above 100 A

All fuses have blown fuse indicators

Protection of Power Semiconductors according to IEC 60269-4

Fuse Bases and Accessories are available

Ultra rapid knife blade fuse contact fuses type NH style 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 type NH-fuses are available with either integral blown fuse indicator or a separately fitted trip indicator fuse for microswitch operation.

Class: 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

High interrupting rating up to 120 kA

Voltage rating AC 500 V - AC 2000 V

Compliance with DIN 43620 and DIN 43653 standard

Fuses with blown fuse combination indicator

Class aR according to IEC 60269-4 and DIN VDE 0636-40 and

Class gR according to DIN VDE 0636-40

Fuse bases / Switches and Accessories are available

Protection of Power Semiconductors according to IEC 60269-4

Complies with BS 88 Standard and are available with or without striker for microswitch operation, Class aR 5 A - 900 A according to IEC 60269-4

Standards: IEC 60 269-4, BS 88-4

Class: aR

Voltage ratings: AC 240 V - AC 700 V

Current ratings: 5 A - 900 A

High interrupting rating 100 kA

Voltage rating AC 240 V - AC 700 V

The diameter of the bottom of the fuse-links are graduated according to current rating. A gauge piece that is matched to the fuses current rating is mounted in the fuse base. This prevents them from being interchangeable.

Voltage rating: AC 400 V - AC 500 V / DC 250 V - DC 500 V

Current rating: 0.5 A to 200 A

Class: gG/gL

Standards: IEC 60 269-3-1, DIN VDE 0636 Part 301, DIN 49515 / 49360 / 49365 / 49522

Systems: ND - AC 500 V - DIN 49360

D - AC 500 V - DIN 49515 / DO - AC 400 V - DIN 49522

* UL Recognition

Class gRL,

Size: 00 / 1 / 2 / 3

Product Reference: URL

Class gR/aR/gRL

Size: Cylindrical fuse

Product Reference: URZ