  | NRI Industrial | D756353 | 42.4 | 1 | In Stock | | COOPER BUSSMANN | | 42.4 @ 1 |
| Monarch Electric | 58978 | 80.561 | 1 | In Stock | | Bussmann | | 80.561 @ 1 |
| simplybreakers.com | FRS-R-400 | 149.99 | 1 | In Stock | | Bussmann | | 149.99 @ 1 |
  | mostelectric.com | FRS-R-400 | 150.87 | 1 | In Stock | | COOPER BUSSMANN | | 150.87 @ 1 |
  | galesburgelectric.com | FRS-R-400 | 153.76 | 1 | In Stock | | Bussmann | | 153.76 @ 1 |
  | Allfuses | FRS-R-400 | 155.34 | 1 | 583 | | Bussmann | | 155.34 @ 1 |
  | turtle.com | BUS FRS-R-400 | 186.98 | 1 | In Stock | | Eaton | | 186.98 @ 1 |
| AmazonTP | B018JZJDFA | 189.11 | 1 | In Stock | 2 | Bussmann | | 189.11 @ 1 |
  | superbreakers.com | FRS-R-400 | 208.8 | 1 | In Stock | | Eaton Bussmann | | 208.8 @ 1 |
  | Kelly Hayes | FRS-R-400 | 209.2 | 1 | In Stock | | BUSSMANN | | 209.2 @ 1 |
| Onlinecomponents.com | FRS-R-400 | 232.22 | 1 | 3 | | BUSSMANN / EATON | | 232.22 @ 1 |
  | Raptor Supplies | AE7RAU | 241.258212 | 1 | In Stock | | BUSSMANN | | 241.258212 @ 1 |
  | bscsource.com | FRSR400 | 247.29 | 1 | In Stock | | Cooper Bussmann | | 247.29 @ 1 |
| Amazon | B01EK95RUY | 259.0 | 1 | In Stock | | Bussman | | 259.0 @ 1 |
  | AI Consolidated | FRS-R-400-BUSSMANN | 266.11 | 1 | In Stock | | Bussmann Eaton Cooper Fuses | 2.25 | 266.11 @ 1 |
  | Tedss | 2026002211 | 268.54 | 1 | In Stock | | COOPER BUSSMANN | | 268.54 @ 1 |
  | Federal Connectors | FRSR400@BUS | 268.54 | 1 | 10 | | BUSSMANN | | 268.54 @ 1 |
| Waldom | EATON FRS-R-400 | 271.41 | 1 | In Stock | | Eaton | | 271.41 @ 1 |
| Graybar | 88050746 | 272.2384 | 1 | 18 | | Bussmann (Eaton) | | 272.2384 @ 1 |
  | Zoro | G2909672 | 287.02 | 1 | 239 | | Eaton Bussmann | 2.3 | 287.02 @ 1 |
  | Galco | FRS-R-400-BUSS | 287.02 | 1 | 3 | | Bussmann | 2.553 | 287.02 @ 1 |
  | Platt.com | 0458082 | 312.78 | 1 | 68 | | Eaton/Bussmann Series | | 312.78 @ 1 |
| steinerelectric.com | 5162 | 316.72 | 1 | In Stock | | BUSSMANN | | 316.72 @ 1 |
  | Digi-Key | 2041-1052-ND | 339.71 | 1 | In Stock | | Eaton - Bussmann Electrical Division | | 339.71 @ 1 |
  | simsupply.com | ZO-G2909672 | 339.76 | 1 | 197 | | Eaton Bussmann | | 339.76 @ 1 |
  | Radwell | FRS-R-400 | 420.0 | 1 | 107 | | BUSSMANN FUSETRON | | 420.0 @ 1 |
  | Elliott Electric | FRSR400 | 422.39 | 1 | In Stock | | Eaton Bussmann Series | 2.32 | 422.39 @ 1 |
  | Walker Industrial | FRS-R-400 | 423.12 | 1 | In Stock | 17 | Cooper Bussmann | | 423.12 @ 1 |
  | kempstoncontrols.co.uk | FRS-R-400 | 442.9287135 | 1 | 1 | | Bussmann | | 442.9287135 @ 1 |
| standardelectricsupply.com | 7730 | 483.57 | 1 | In Stock | | Bussmann | | 483.57 @ 1 |
  | National Supply Network | 75908855 | 484.62 | 3 | In Stock | | Cooper Bussmann | | 484.62 @ 3 |
| us.rs-online.com | 71274915 | 580.44 | 1 | In Stock | | Bussmann by Eaton | | 580.44 @ 1 |
  | Newark | 94F2531 | 603.78 | 1 | In Stock | | EATON BUSSMANN | | 603.78 @ 1 |
| Airline Hydraulics | BUSSMANN FRS-R-400 | 732.84 | 1 | In Stock | | Cooper Bussmann | | 732.84 @ 1 |
  | Carlton Bates Company | 05171250853 | 1572.1 | 1 | In Stock | | EATON BUSSMANN SERIES | | 1572.1 @ 1 |