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What Is a BS88 Fuse?
British style fuses are typically found in equipment manufactured in the United Kingdom or British Commonwealth countries. However, North American manufacturers have begun to specify British style fuses — particularly in UPS applications at 240V or less — to take advantage of their size, performance and cost benefits.
Bolted tag fuses are used to protect circuits from overcurrent and short circuits. They achieve this by having a weak point or fuse link inside which will melt if there is a sudden surge in the electricity, this will then protect anything in the circuit from overloading. These fuses have various breaking capacity ranging from 1A to 325A.
There are multiple different ratings for the fuses which allow the circuit to run at the required capacity without breaking the fuse when not necessary. For example a circuit running at 55 Amps will require a fuse rated higher than that amperage so it does not trip under normal operation, but if a 63A fuse is installed, it will then trip if the amperage rises above that number of Amps.
There are a multiple number of manufacturers including: Bussmann Cooper, Mersen & Schneider
Here at ACDC Drives we stock the full range of BS88 fuses and keep them on the shelf. If you require any specialist fuses that you cannot see listed on our site, please give us a call on 01905 887667 or drop us an email and we will source it for you from one of our many suppliers.
What are the Voltage Ratings on BS88 Fuses?
For general applications or cable protection, the standard gG (general purpose) NH fuse link should be considered. For Motor protection applications, the aM (motor protection) NH fuse link should be considered. Motor Protection (aM) fuse links have partial range breaking ability and cannot clear low overload faults. They should only be applied to circuits also protected by a motor protection relay or where only high short-circuit faults could occur.
Designed and tested to:
- BS88: Part 4
- IEC 269: Part 4
- UL Recognised