  | NRI Industrial | D574856 | 30.11 | 1 | In Stock | | COOPER BUSSMANN | | 30.11 @ 1 |
| AmazonTP | B0025QEFCQ | 40.0 | 1 | In Stock | 2 | Cooper Bussmann | | 40.0 @ 1 |
  | Allfuses | FRN-R-300 | 85.44 | 1 | 16 | | Bussmann | | 85.44 @ 1 |
  | Kelly Hayes | FRN-R-300 | 120.39 | 1 | In Stock | | BUSSMANN | | 120.39 @ 1 |
| Onlinecomponents.com | FRN-R-300 | 133.47 | 1 | 5 | | BUSSMANN / EATON | | 133.47 @ 1 |
| Superbreakers | FRN-R-300 | 138.99 | 1 | 2 | | Cooper / Bussmann | | 138.99 @ 1 |
  | Zoro | G3464526 | 143.18 | 1 | In Stock | | Eaton Bussmann | 1.95 | 143.18 @ 1 |
  | Galco | FRN-R-300-BUSS | 143.18 | 1 | In Stock | | Bussmann | 1.95 | 143.18 @ 1 |
  | AI Consolidated | FRN-R-300-BUSSMANN | 144.69 | 1 | In Stock | | Bussmann Eaton Cooper Fuses | 1.95 | 144.69 @ 1 |
| Waldom | EATON FRN-R-300 | 147.57 | 1 | In Stock | | Eaton | | 147.57 @ 1 |
  | bscsource.com | FRNR300 | 148.19 | 1 | In Stock | | Cooper Bussmann | | 148.19 @ 1 |
  | ace4parts.com | FRN-R-300 | 150.0 | 1 | 2 | | BUSSMAN | | 150.0 @ 1 |
  | Radwell | FRN-R-300 | 155.81 | 1 | 60 | | BUSSMANN | | 155.81 @ 1 |
| Monarch Electric | 58664 | 161.99 | 1 | In Stock | | Bussmann | | 161.99 @ 1 |
  | simsupply.com | ZO-G3464526 | 169.55 | 1 | 22 | | Eaton Bussmann | | 169.55 @ 1 |
  | Platt.com | 0357248 | 170.69 | 1 | In Stock | | Eaton/Bussmann Series | | 170.69 @ 1 |
  | sustainablesupply.com | C1208155 | 175.64 | 1 | In Stock | | Eaton | 1.95 | 175.64 @ 1 |
| Graybar | 88050675 | 198.9456 | 1 | In Stock | | Bussmann (Eaton) | | 198.9456 @ 1 |
  | Elliott Electric | FRNR300 | 232.8 | 1 | In Stock | | Eaton Bussmann Series | 1.8 | 232.8 @ 1 |
  | Walker Industrial | FRN-R-300 | 243.49 | 1 | In Stock | 10 | Cooper Bussmann | | 243.49 @ 1 |
  | National Supply Network | 75785014 | 268.61 | 5 | In Stock | | Cooper Bussmann | | 268.61 @ 5 |
| standardelectricsupply.com | 232328 | 278.27 | 1 | In Stock | | Bussmann | | 278.27 @ 1 |
  | Raptor Supplies | AE7RAK | 280.3989825 | 1 | In Stock | | BUSSMANN | | 280.3989825 @ 1 |
| Newark | 02B2930 | 343.17 | 1 | In Stock | | EATON BUSSMANN | | 343.17 @ 1 |
| us.rs-online.com | 71446258 | 352.33 | 1 | In Stock | | Bussmann by Eaton | 0.05 | 352.33 @ 1 |
  | Digi-Key | 5434835 | 354.13 | 1 | In Stock | | Eaton - Bussmann Electrical Division | | 354.13 @ 1 |
| Airline Hydraulics | BUSSMANN FRN-R-300 | 488.78 | 1 | In Stock | | Cooper Bussmann | | 488.78 @ 1 |
  | Carlton Bates Company | 05171250751 | 801.4 | 1 | In Stock | | EATON BUSSMANN SERIES | | 801.4 @ 1 |