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Littelfuse CCMR.250 Dual-Element Time-Delay Class CC Fuse 0.25A 250VDC 600VAC 200000A Interrupting Rating

Brand SKU 75708

Documents

Engineered for exceptional performance in demanding applications, this dual-element time-delay fuse from Littelfuse is specifically designed to protect motor branch circuits. With a remarkable interruption capacity of up to 200,000 amperes, it excels at managing overcurrents safely and effectively. Notably, the CCMR Series provides Type II protection, ensuring no damage to both NEMA-rated and IEC type motor circuit components, making it a versatile choice for various industrial settings. One of its standout features is its compact design, offering superior protection within a smaller footprint compared to other fuse classes. When you replace traditional Class R fuse blocks with Littelfuse Class CC, you can reduce panel-mounting space by approximately 70%, allowing for more efficient use of valuable real estate. This fuse not only stands out for its size but also for its capability to limit current flow dramatically, minimizing the risks associated with short-circuit conditions by interrupting damage-causing currents more swiftly than any mechanical protective device. With ample amperage available from 35 to 60 amps, this fusion of technology and engineering is a crucial asset for maintaining system integrity and operational reliability.

  • Type II no damage protection for motor circuit components
  • Dual-element time-delay design prevents nuisance blowing
  • High 200,000 amperes interrupting rating for safety
  • Extremely current-limiting to minimize short-circuit damage
  • Compact Class CC size reduces panel space by approximately 70%
  • Wide ambient operating temperature range from -60°C to 140°C
  • UL Listed and CSA Certified for assured safety and compliance
  • Compatible with UL 248-4 Class CC standards for motor protection
  • Available in amperage ratings suitable for motor circuits from 35 to 60 amps
  • Voltage DC: 250 V
  • Voltage AC: 600 V
  • Interrupting Rating: 200000 A @ 600 VAC
  • Ampere Rating: 0.25 A
  • Opening Type: Slo-Blo / Time Lag / Time Delay
  • Dimensions: Length 1.88 in (47.8 mm), Diameter 0.85 in (21.6 mm)
  • Material: Dual-element time-delay
  • Temperature Range: Ambient -60°C to 140°C
  • Compliance: UL Listed, CSA Certified, CE, RoHS
  • Applicable Standards: UL 248-4 Class CC
  • Country of Origin: Mexico

Certification

CSA 1422-02 029862
CE CCMR Series
UL JDDZ E81895

Environmental Info

ICPTest_CCMR_ 0 2 20A _2 8 2013 pdf
ICPTest_CCMR_ 0 2 20A _1 28 2013 pdf
ICPTest_CCMR_ 25_and_30_amps _1 28 2013 pdf

Application Notes

Motor Protection Guide and Tables

Datasheets

CCMR Series Datasheet