Littelfuse CCMR050 Class CC Fuse 50A 200000A@600VAC Time Delay

Engineered specifically for motor branch circuit protection, the CCMR050 from Littelfuse represents the pinnacle of safety and reliability in industrial electrical applications. This true dual-element time-delay fuse is uniquely designed to provide superior current limitation, making it the most effective option for managing the heating and magnetic effects of short-circuit currents. With an impressive interrupting rating of up to 200,000 amperes at 600 VAC, it ensures rapid interruption of overcurrents, significantly reducing potential damage. Additionally, the compact design accommodates larger sizes, ranging from 35 to 60 amperes, allowing for substantial space savings—up to 70% compared to traditional Class R fuse blocks. Notably, this fuse offers Type II protection, delivering reliable defense for both NEMA-rated and IEC type motor circuit components, making it an essential component for safeguarding valuable equipment in constrained environments.

• True dual-element time-delay design for motor branch circuit protection
• Extremely current limiting reduces damage from short-circuit heating and magnetic effects
• High interrupting rating of 200,000 amperes at 600 VAC for rapid overcurrent interruption
• Type II "No Damage" protection for NEMA and IEC motor components
• Compact design saves up to 70% space compared to Class R fuse blocks
• Available in larger sizes from 35 to 60 amperes in a small package
• Operates reliably across a wide temperature range from -60°C to 140°C
• UL Listed, CSA Certified, CE, and RoHS Compliant for safety and environmental standards
• Class CD size compatible with standard fuse holders

• Voltage: 600 VAC, 250 VDC
• Amperage: 50 A
• Interrupting Rating: 200,000 A @ 600 VAC
• Type of Opening: Slo-Blo/Time Lag/Time Delay
• Size: Class CD
• Material: Dual-element time-delay fuse
• Standards: UL 248-4 Class CC (0.2–30A), UL 248-18 Class CD (35–60A)
• Compliance: UL Listed, CSA Certified, CE, RoHS Compliant
• Dimensions: Length 1.50 in (38.1 mm) to 1.88 in (47.8 mm), Diameter 0.41 in (10.3 mm) to 0.85 in (21.6 mm)
• Operating Temperature Range: -60°C to 140°C
• Country of Origin: Mexico

Environmental Info

Certification

Application Notes

Datasheets