Ferraz Shawmut Fuses
Ferraz Shawmut offers a vast range of reliable semiconductor fuses to protect solid-state components. Ferraz Shawmut develops and manufactures fuses, fuse blocks and switches.
Ferraz's extensive rnage of fuses include: North American Round Fuses, European Square Fuses, European Cylindrical Fuses, European DIN Style Fuses and British Standard Fuses.
GD Rectifiers is an official distributor for Ferraz Shawmut fuses and stocks their complete range of semiconductor fuses.
North American Round Fuses
Ferraz's A15QS Amp-trap Form 101 Semiconductor Protection fuses were designed for the specific protection of diodes and other semiconductor devices rated 150VAC/DC. Thsi compact design is perfect for those applications that have limitations on space.
The A30QS Amp-trap Form 101 Semiconductor Protection fuses are intended for the protection of power semcionductors such as diodes, phase control SCR's and other power semiconductor devices. The A30QS provides solutions for critical protection needs at 300V and is recommended for new applications.
The A50QS Amp-trap Form 101 encompasses the best protection for equipment, longer life when subjected to cyclic loading and lower watts loss. This fuse is recommended for dynamic solid state equipment such as motor drives, inverters and UPS.
Ferraz's A60Q Amp-trap Form 101 Semiconductor Protection fuses feature the only 600 volt AC/DC rating in the industry of similar size (1-1/2" x12/32") fuses protecting semiconductors. The A60Q also as the lowest l2t of all similar fuses and excellent cycling ability. Typical applications for these fuses include inverters and small equipment requiring extremely fast response to faults without the need to carry sustained heavy overloads.
These Premium Amp-trap French Cylindrical Semiconductor fuses are an extension of Ferraz's A70QS range. They are solid-fill 14mm and 22mm fuses IEC rated 690Vac, 200kA interrupting and 700Vdc, 100kA interrupting at 10ms time constant. These fuses also have an 890Vdc rating for capacitor discharge applications up to 2.5ms time constant and all ampere ratings are available with a striker.
Ferraz developed the A70QS Amp-trap Semiconductor Protection fuses because of the need for improved overall performance of 700 volt semiconductor fuses for new equipment requirements. A70QS fuses have lower l2t for better protection, longer life when subjected to cyclic loading and lower watts loss.
The A100P Amp-trap Form 101 Smeiconductor Protection fuses are rated 1000V, extending the range of protection for UPS systems, AC and DC drives, reduced voltage motor starters and similar applications where lower i2t and superior reliability are required. With ratings from 15 to 1000 amperes, these fuses can serve a wide range of high voltage applications.
Ferraz's A120X Amp-trap Form 101 Semiconductor Protection fuses, rated 1/2A through 30A, 1200Vac are popular for use in traction drive auxiliary circuits and similar applications. A120X fuses are also suitable for use on 1000VDC auxiliary circuits with low time constants.
A150X Amp-trap Form 101 Semiconductor Protection fuses, rated 1A through 1000A, 1500Vac are popular in traction drive auxiliary circuits and similar applications. These fuses are also suitable for use on 1500VDC auxiliary circuits with low time constants.
The A60X Amp-trap Form 101 Semiconductor Protection fuses are popular for the protection of higher voltage heavy rectifiers such as traction rectifiers. They can carry long sustained overloads common with heavyduty apparatus. These fuses are compact, feature a hockey-puck design, are able to provide high power protection in a small space and have a range of 700A to 2000A.
Ferraz's A60X Amp-trap Form 101 Semiconductor Protection fuses were developed for DC drives, uninterruptable power supplies and similar applications requiring better protection and superior reliability. The A50P fuses are typically used as replacement parts.
The A70P Amp-trap Form 101 Semiconductor Protection fuses were designed for higher voltage AC and DC drives, UPS systems, reduced voltage motor starters and similar applications where lower i2t and superior reliability are required. A70P is a very popular fuse, available in a wide range of ratings.
A70Q Amp-trap Semiconductor Protection fuses were developed for inverter applications requiring extremely low i2t. these fuses provide the most responsive protection for applications not required to sustain heavy overloads.
European Square Fuses
Ferraz Shamut 690/700V PSC fuse-links provide maximum flexibility in equipment design and ultimate protection for today's power conversion equipment. These square body fuse-links are available in four different body sizes. The various mounting styles and body sizes long with a broad range of ampere ratings allow greatest flexibility in equipment design.
Ferraz Shawmut 1250/1300V PSC fuse-links.
European Cylindrical Fuses
Protistor fuses 600V AC URD from 0.10 up to 0.80A** 500V AC URB/URD/URL from 1 up to 30A size: 10 x 38
The A070gRB is a fast acting, full range fuse utilised in the protection of inverters, UPS and other discrete semiconductor devices.
Protistor fuses 690V AC URC/URD from 6 up to 100A sizes: 14x51 and 22x58
690V-1000V AC URB/URQ/URS from 32 up to 250A size: 27x60
European DIN Style Fuses
Protistor fuses 500-690V AC gRB/URB from 20 to 400A size: 000
British Standard Fuses
Protistor fuses 500-690V AC gRB/URB from 20 to 400A Size: 000
Ferraz Shawmut has been serving the electrical industry for over 40 years, they specialise in general purpose, medium voltage and semiconductor fuses and accessories.
In 2010 Ferraz Shawmut changed their name to Mersen.
You can find further information on Ferraz Shawmut using the following links: