High Voltage Fuses

Power stations, substations, overhead power lines: Of the many energy utility installations that ensure our vital electricity supply, most people only take notice of the big, visible features. As far as many consumers are concerned, electricity still simply comes out of the wall. But that things are far from that simple is a story the energy utilities could tell every day. But to prevent matters from reaching a pitch where people notice that something is wrong because the power has failed, the operators take precautions by investing in good time, and not just in the visible infrastructure. This extends from the transformer via cable and wire to the consumer. SIBA products protect this infrastructure - and thus make their own contribution to the reliability of our energy supply.

High Voltage Applications Guide

Power stations, substations, overhead power lines: Of the many energy utility installations that ensure our vital electricity supply, most people only take notice of the big, visible features. As far as many consumers are concerned,

DIN Style, Current-Limiting Fuses

The design and construction of these fuses follow the well proven concepts of all SIBA high voltage fuses.
They’re rated up to 40.5kV and comply to the following national and international standards: (DIN 43 625,BS 2692-1, ESI 12-8)

HHC (Capacitor Backup American Style)

Designed for optimum capacitor circuit protection for the North American market. Meets requirements for indoor
and outdoor use.

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HHBM-BM (British Style, Current-Limiting, Back-up

Specifically designed for British or DIN standard motor protection, these fuses are designed and constructed to
well proven concepts developed by SIBA to deal with cyclic loads typical for motor circuits with lower power
losses compared to commonly used HV fuses.and outdoor use.

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HHPT (Current-Limiting, Back-up, Potential Transformer Protection (PT)

These specially designed fuses have excellent current-limiting properties with the capability of isolation the
faulty potential transformer in a matter of milliseconds from the grid.
NEW – E-Rated fuses per IEEE C37-41-2008and outdoor use.

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HHO (Under Oil and Switchgear Protection Fuses)

SIBA HHO series of special purpose fuses are current-limiting “Back-up” and “General Purpose” class for
protection use inside of oil filled transformers.

HHF (Current-Limiting, Back-Up, UTE to French Standard)

SIBA HHF series with standards like NF EN (60282-1), UTE (C64-210), and IEC (60282-1) are specially
designed for the French market. Rated at 24kV from 6.3A all the way to 63A. You have the option of a 80N
striker that can assembled with our microswitch assembly unit or without a striker.

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HH Accessories

SIBA offers a variety of options to use on your HV fuses, such as fuses bases, clips, and microswitches.

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