| Onlinecomponents.com | BK1/GMA-125-R | 0.446 | 50 | 25 | | Eaton | | 0.446 @ 50 |
| Avnet | BK1-GMA-125-R | 0.446 | 1000 | 25 | | Eaton | | 0.446 @ 1000 |
| specialtycontrolsystems.com | GMA-125-R | 0.6 | 1 | 25 | | BUSSMAN | | 0.6 @ 25 |
| Hotenda | H574560 | 0.725 | 1 | 25 | | Eaton (formerly Cooper Bussmann) | | 0.725 @ 25 |
| Arrow | GMA-125-R | 0.914 | 1 | 25 | | Cooper Bussmann | | 0.914 @ 25 |
 | swatee.com | BK/GMA-125-R | 0.99 | 1 | 522 | | Eaton | | 0.99 @ 25 |
 | Newark | 48K9526 | 1.01 | 1 | 1414 | | EATON BUSSMANN | | 1.01 @ 25 |
| iodParts | BK/GMA-125-R | 1.12 | 300 | 400 | | Eaton | | 1.12 @ 300 |
 | Carlton Bates Company | 05171264786 | 1.21 | 1 | 25 | | EATON BUSSMANN SERIES | | 1.21 @ 25 |
 | Radwell | GMA-125-R | 1.49 | 5 | 25 | | BUSSMANN | 1.0 | 1.49 @ 25 |
 | Walker Industrial | GMA-125-R | 1.59 | 5 | 25 | 17 | Cooper Bussmann | | 1.59 @ 25 |
 | AI Consolidated | GMA-125-R-BUSSMANN | 1.71 | 1 | 25 | | Bussmann Eaton Cooper Fuses | 0.0127 | 1.71 @ 25 |
| Dale-Electric | GMA-125-R | 1.74 | 1 | 25 | | Cooper Bussmann | | 1.74 @ 25 |
| Waldom | EATON GMA-125-R | 1.9 | 1 | 25 | | Eaton | | 1.9 @ 25 |
 | Allfuses | GMA-125-R | 1.94 | 1 | 95 | | Bussmann | | 1.94 @ 25 |
 | Galco | BK/GMA-125-R-BUSS | 2.39 | 100 | 25 | | Bussmann | | 2.39 @ 100 |
 | superbreakers.com | GMA-125-R | 2.59 | 1 | 25 | | Eaton Bussmann | | 2.59 @ 25 |
| Superbreakers | GMA-125 | 2.59 | 1 | 25 | | Cooper / Bussmann | | 2.59 @ 25 |
| us.rs-online.com | 74056966 | 2.64 | 5 | 25 | | Eaton Electronics | | 2.64 @ 25 |
 | Platt.com | 0964672 | 3.27 | 1 | 62 | | Eaton/Bussmann Series | | 3.27 @ 25 |
| crescentelectric.com | 33474 | 3.65 | 1 | 35 | | Eaton Bussmann series | | 3.65 @ 25 |
| Mouser | 504-GMA-125-R | 3.7 | 1 | 211 | | Cooper Bussmann | | 3.7 @ 25 |
| Digi-Key | 1877448 | 4.936 | 1 | 25 | 75 | Eaton - Electronics Division | | 4.936 @ 25 |
| Airline Hydraulics | BUSSMANN GMA-125-R | 5.42 | 1 | 25 | | Cooper Bussmann | | 5.42 @ 25 |
| RS Delivers | 848-3002 | 7.008 | 1 | 262 | | Eaton | | 7.008 @ 25 |
 | National Supply Network | 71917769 | 7.7896 | 5 | 25 | | Cooper Bussmann | | 7.7896 @ 25 |
 | Zoro | G2575002 | 9.2 | 1 | 119 | | Eaton Bussmann | 0.01 | 9.2 @ 25 |
 | sustainablesupply.com | C1210582 | 16.0 | 1 | 25 | | Eaton | 0.01 | 16.0 @ 25 |
 | Raptor Supplies | AE8QHP | 33.028866 | 1 | 25 | | BUSSMANN | | 33.028866 @ 25 |
| AmazonTP | B07S4GZXJ6 | 68.04 | 1 | 25 | 1 | Bussmann / Eaton | | 68.04 @ 25 |
 | turtle.com | BUS BK/GMA-125-R | 253.62 | 1 | 25 | | Eaton | | 253.62 @ 25 |
| Graybar | 25142163 | 323.4672 | 5 | 100 | | Bussmann (Eaton) | | 323.4672 @ 25 |
