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The Littelfuse Energy Storage Rack (ESR) series of fuses is designed specifically to protect battery racks in energy storage systems, inverters, and many other dc applications. The 1500 V dc high-speed square body fuse is extremely fast-acting to respond quickly to a range of fault currents to safeguard the battery module or other devices.
This Class aBat partial range fuse has superior short circuit protection and a low minimum breaking capacity (MBC)—from 300 % or 3 times the fuse’s rated current to 250 kA—to cover a range of over currents that traditional high-speed partial range fuses do not protect against.
The ESR fuse safely interrupts most faults in a battery storage system to avoid catastrophic failures and costly shutdowns.
- High dc interrupting rating
- Low minimum breaking current
- Extremely fast acting
- Low watt loss
- Conforms to the IEC 60269-7 battery standard
- Compact NH 1XL and 3XL sizes
- Offers easy coordination with battery modules and reduces size and rating of dc contactors to save space and costs
- Offers easy coordination with battery modules and reduces size and rating of dc contactors to save space and costs
- Delivers high-speed performance
- Maximizes efficiency by preventing energy loss and minimizing the wasted power of components
- Specifically design to safeguard evolving battery technologies with fuse circuit protection
- Save space and offer design flexibility
ESR Parts
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Filters
ESR Applications
- Battery energy storage systems (BESSs) – Battery Protection Unit (BPU) and battery racks
- Power conversion systems
- Dc common bus systems
- Hybrid PV-BESS inverters
