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ESR3XLDB0550

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ESR3XLDB0550

POWR-SPEED SQB ESR 1500VDC 3XL DIN 550A | Series: ESR
info

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 175 kA (250 kA self-certified)—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.

PropertyValue
Current Rating (Continuous) in Amps
550
Interrupting Rating
250 kA @ 1500 Vdc
Opening
aBat
Voltage Rating (V)
1500
Case Size
NH 3XL
Amp Code (Part Number)
0550
IEC Standard
60269-7
interrupt Amperage (A) - 1
250000
interrupt Voltage Type AC/DC) - 1
DC
interrupt Voltage (V) -1
1500
Mounting Method
DIN Blade
Operating Temperature Max (°C)
125
Operating Temperature Minimum Celsius
-55
Voltage Rating (Dc)
1500
Max Voltage Rating (V)
1500
Watts Loss 100 %
164
  • High dc interrupting facilitates scaling up systems without requiring a redesign of circuit protection
  • The low minimum breaking current offers easy coordination with battery modules and reduces size and rating of dc contactors to save space and costs
  • Extremely fast acting delivers high-speed performance
  • Low watt loss maximizes efficiency by preventing energy loss and minimizing the wasted power of components
  • Conforms to the IEC60269-7 battery circuit protection standard
  • Compact NH 1XL size saves space and offers design flexibility

ESR3XLDB0550 Applications

Highlights Section

  • Battery energy storage systems (BESSs) – Battery Protection Unit (BPU) and battery racks
  • Power conversion systems
  • Dc common bus systems
  • Hybrid PV-BESS inverters

ESR3XLDB0550 Resources

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Part NumberPart DescriptionRoHSPb-FreeRoHS (2015/863/EU) CertificateREACH (SVHC's) DeclarationREACH (SVHC's)Halogen FreeIPC-Material Declaration
ESR3XLDB0550XPOWR-SPEED SQB ESR 1500VDC 3XL DIN 550A

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