Finger-Safe Fast-Acting
CUBEFuse®
Delivers Superior
Protection with up to a 75%
Smaller Footprint
• Fast-acting protection specifically for UPS and other critical applications
• Finger-safe fuses minimize exposure to live parts, reducing hazard to personnel
• Integral use with Compact Circuit Protector (CCP) or CUBEFuse holder minimizes panel space
• Minimizes incident energy and reduces arc-flash hazards utilizing Class J electrical characteristics
• Available in Cooper Bussmann Quik-Spec Coordination Panelboard for easy installation in the smallest fusible panel footprint
Catalog Symbol: FCF_RN
Fast-Acting Fuse:
4 minutes maximum clearing time at 200% rated current for 1 to 30A fuse
4 minutes maximum clearing time at 200% rated current for 1 to 30A fuse
6 minutes maximum clearing time at 200% rated current for 35 to 60A fuse
8 minutes maximum clearing time at 200% rated current for 70 to 100A fuse
Amp Ratings: 1 to 100A
Voltage Ratings: 600Vac/dc
Interrupting Ratings: 1-60A
300kA RMS Sym. (UL)
200kA RMS Sym. (CSA)
50kA DC (UL & CSA)
Interrupting Ratings: 70-100A
200kA RMS Sym. (UL)
200kA RMS Sym. (CSA)
50kA DC (UL & CSA)
Agency Information:
• UL Listed Fuse: Guide JFHR, File E4273
• CSA Certified Fuse: Class 1422- 02, File 53787
• CE compliance for the European Union low voltage directive
• RoHS compliant
Other Ratings/Specifications:
Watts Loss at rated current:
FCF15RN: 3.48W
FCF15RN: 3.48W
FCF30RN: 5.45W
FCF60RN: 7.27W
FCF100RN: 11.50W
Operating and Storage Temperature Range: -40 to 80°C
Material Specifications:
• Case: Glass filled PES (Polyethersulfone)
• Terminals: Copper alloy
• Terminal plating: Electroless tin
Features and Product Benefits
• The world’s first finger-safe power fuse system.
• Smallest footprint of any class fuse including Class J, CC, T and RK.
• Class CF meets Class J fast-acting electrical performance requirements.
• Faster response to damaging faults to help reduce destructive thermal and magnetic forces.
• True fast-acting fuse construction.
• High interrupting rating to safely interrupt faults up to 300kA.
• No venting of arc or molten metal and gases during opening.
• Low let-through currents under fault conditions.
Catalog Numbers (amp rating)
Carton Quantity and Weight
FCF_RN Dimensions – in (mm)
![](/uploads/spec-pics/2014034/FCF_RN-Bussmann-Dimensions.jpg)
Time-Current Characteristic Curves–Average Melt
![](/uploads/spec-pics/2014034/FCF-RN-Time-Current.jpg)
Current Limitation Curves
![](/uploads/spec-pics/2014034/FCF-RN-Current-Limitation-Curves.jpg)
Non-Indicating CUBEFuse® | |||||
FCF1RN | FCF3RN | FCF6RN | FCF10RN | FCF15RN | FCF20RN |
FCF25RN | FCF30RN | FCF35RN | FCF40RN | FCF45RN | FCF50RN |
FCF60RN | FCF70RN | FCF80RN | FCF90RN | FCF100RN |
Carton Quantity and Weight
Amp Rating | Carton Qty. | Weight Per Carton | |
lbs | kg | ||
FCF-1-30 | 12 | 1.39 | 0.63 |
FCF-35-60A | 12 | 1.42 | 0.65 |
FCF-70-100A | 6 | 1.74 | 0.79 |
FCF_RN Dimensions – in (mm)
![](/uploads/spec-pics/2014034/FCF_RN-Bussmann-Dimensions.jpg)
Time-Current Characteristic Curves–Average Melt
![](/uploads/spec-pics/2014034/FCF-RN-Time-Current.jpg)
Current Limitation Curves
![](/uploads/spec-pics/2014034/FCF-RN-Current-Limitation-Curves.jpg)
CUBEFuse Holders, Disconnects and Panelboards
The CUBEfuse is used in the following Cooper Bussmann products.
![](/uploads/spec-pics/2014034/TCFH.jpg)
![](/uploads/spec-pics/2014034/TCFH.jpg)
All 100, 60 and 30A CUBEFuse holders can be dovetail together for the required number of poles with the smallest Class J fuse footprint possible.
![](/uploads/spec-pics/2014034/CCP_CF-Cooper-Bussmann-disconnect.jpg)
The DIN rail mounted 1-, 2-, and 3-pole CCP_CF comes in 30, 60 and 100A versions. The CCP_CF is a compact, horsepower rated disconnect that offers 3X the protection in 1/3 the space of traditional circuit breaker solutions. Local, neon open fuse indication is standard (same as the CCPB in the Quik-Spec™ Coordination Panelboard). 2- and 3-pole versions are ganged and all versions offer a lockout/tagout provision for added safety.
![](/uploads/spec-pics/2014034/CCPB.jpg)
![](/uploads/spec-pics/2014034/CCPB.jpg)
1-, 2-, and 3-pole CCPB is an an ampacity-rejecting branch disconnect for the Quik-Spec™ Coordination Panelboard that uses the CUBEFuse up to 100A.