Overview Reviews Product Description Bussmann FRS-R-300 Fusetron Current limiting Fuse 300A 600V Class RK5. Product Videos Custom Field Amp 300 Volts 600 Product Reviews Write a Review Write a Review × Bussmann Bussmann FRS-R-300 Fusetron Current limiting Fuse 300A 600V Class RK5 Rating * Select Rating 1 star (worst) 2 stars 3 stars (average) 4 stars 5 stars (best) Name Review Subject * Comments *