Overview Reviews Product Description Ferraz Shawmut A4D40R Fuse 40A 600V Dual Element Time-Delay Amp-Trap 2000 Class RK1 A4D40R-UA-YAG. Product Videos Custom Field Product Reviews Write a Review Write a Review × Ferraz Shawmut Ferraz Shawmut A4D40R Fuse 40A 600V Dual Element Time-Delay Rating * Select Rating 1 star (worst) 2 stars 3 stars (average) 4 stars 5 stars (best) Name Review Subject * Comments *