The BP/FRN‑R‑30 is a dual‑element, time‑delay, current‑limiting Class RK5 fuse designed for protecting motors, power distribution equipment, and industrial circuits subject to high inrush currents. It provides reliable overload and short‑circuit protection while allowing temporary surges during motor starts or transformer energization.

Key Features

• Dual‑element time‑delay fuse suitable for circuits with temporary overloads (motor starting). 
• Time‑delay performance: 8 seconds minimum at 500% of rated current for the 0–30A range.
• Current‑limiting design reduces damaging fault current levels. 
• Non‑indicating style, though indicating versions exist in the FRN‑R line. 
• Rejection‑type fuse ensuring proper installation only in Class R‑rated fuse holders. 

Specifications

• Amperage Rating: 30 A 
• Voltage Rating:
  • 250 VAC
  • 125 VDC
• Interrupt Rating:
  • 200 kAIC at 250 VAC
  • 20 kAIC at 125 VDC
• Response Time: 8 seconds at 500% (for 0–30A sizes) 
• Fuse Class: Class RK5 (UL 248‑12) 
• Material: Fiberglass body 
• Body Style / Shape: Cylindrical 
  • Diameter: 0.56 in
  • Length: 2.0 in
• Weight: 0.11 lb per fuse 
• Mounting / Termination: Ferrule end × ferrule end, holder‑mounted. 
• Compliances: CE marked; UL & CSA listed.

Applications

Ideal for heavy‑duty industrial and commercial electrical systems:

• Motor control centers (MCCs) 
• Combination motor starters 
• Power panelboards & distribution panels 
• Machinery disconnects 
• Circuits requiring selective coordination within RK5 family (2:1 coordination ratio)