Industrial fuses according to IEC standard

We offer a complete line of fuses for most industrial applications according to IEC 60269, in various styles and utilization classes.

We take the general picture into consideration and offer a wide range of fuseholders, fuse switches and other accessories for safe and effective use.

Class gG fuses offer selective coordination against other class gG fuses with a ratio of 1,6:1 ie upstream fuse rating shall be 1,6 times larger.

NH solid blade fuses, Neozed and Diazed fuses

NH solid blade fuses and fuseholders are available in size 000-4, utilization classes gG, aM and gTr. Most types are available in two versions, with un-insulated grip lugs or insulated grip lugs. Dual indication systems, visual and mechanical simplify identification of a blown fuse.

We also offer a wide range of fuses and fuseholders according to D0 and D-system.

Cylindrical fuses

Ferrule fuses in sizes 8x31, 10x38, 14x51 and 22x58 mm are common in the south of Europe where they are used in standard distribution boards. Fuses size 14x51 and 22x58 mm are also available with visual indication and striker.

We also offer a wide range of finger-safe fuse disconnectors and fuse switches for cylindrical fuses.

Fuses according to British standard, BS88

BS88 fuses are electrically designed according to IEC 60269. Besides United Kingdom, BS88 fuses are common in countries that belong to the British Commonwealth. In Canada BS88 fuses with CSA approval are used beside fuses made according to North American standard.

Utilization classes according to IEC 60269

A utilization class is denoted with two letters, the first refers to usage class, and the second to the object to be protected.

gG fuses
Current limiting fuse designed for cable, line and general protection, full range protection. The fuse has a time lag in the lower overcurrent range and is quick acting in the short circuit range. Replaces older gL fuses.

aM fuse
Current limiting fuse designed for motor short circuit protection, partial range protection. The motor circuit must have an additional protective device for the lower overcurrent range, for example a thermal overload relay.

gM fuse
Current limiting fuse designed for motor protection, full range protection. Only available designed according to BS 88-2 and BS 88-6. Rated current is stated in dual values, thermal current rating and a higher value that relates to the fuse’s ability to withstand starting currents. A fuse with rated current 63M100 can carry up to 63 A continuously and withstand starting currents corresponding to a 100 A class gG fuse.

gTr fuse
Current limiting fuse designed for overload protection of power transformers and short circuit protection of bus bar systems. The fuse is coordinated for discrimination with the high voltage fuses of the power transformer.

aR/gR/gS/gPV fuses
High speed fuses for protection of semiconductors, for example thyristors and diodes. See separate catalogue.