? CTIMES Technology - Littelfuse 500VAC-Rated Ceramic-Body Fuses
 
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Technology Front

Littelfuse 500VAC-Rated Ceramic-Body Fuses

Published: Sep 06,2017

2017 Read

Littelfuse introduced a series of compact, fast-acting 500VAC ceramic body fuses with current ratings ranging from 1.6A to 12.5A. With a high interrupting rating of 5,000A at 500VAC, the 514 Series Ceramic Body Fuse is ideal for high-voltage AC power line protection in HVAC and industrial systems.

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Its robust design enhances its reliability by making it less susceptible to temperature cycling and vibration effects. With a footprint of just 6.3mm x 32mm, it allows circuit designers to free up board space that would otherwise be needed for protection components.

The 514 Series Fuse is ideally suited for high energy and power efficient applications in the home and building automation market, including heating, ventilation and air conditioning (HVAC) equipment and smart meters. Industrial market applications include uninterruptible power supplies (UPSs), three-phase power supplies, and renewable energy.

“The 514 Series’ low current rating combined with high breaking capacity is unique in a fuse with such a small footprint,” said Ben Zheng, global product manager at Littelfuse. “When used for short circuit protection in the AC output or AC main of inverter circuits like three-phase AC power supplies, 514 Series Fuses provide robust overcurrent protection in extremely adverse conditions.”