| MRO Supply | 1376044 | 1 | | 1 | |
| Allied Electronics | 70150083 | 1 | | 1 | |
| Onlinecomponents.com | KTK-8 | 1 | | 1 | 1 @ $21.00, 2 @ $19.06, 11 @ $17.70, 21 @ $16.52, 51 @ $15.88 |
| Grainger | 6F133 | 1 | | 1 | |
| RS Online | 8511202 | 1 | | 1 | |
| 1Source | KTK-8 | 1 | | 1 | |
 Walker Industrial | KTK-8 | 1 | 3 to 5 Days | 1 | 1 @ $34.02 |
| Freelance Electronics | KTK-8 | 1 | 10 | 1 | 1 @ $7.65, 3 @ $6.08, 5 @ $5.73, 7 @ $5.33, 9 @ $4.75 |
 Platt.com | 0368638 | 1 | 68 | 1 | 1 @ $3.90 |
 Carlton Bates Company | 05171242017 | 1 | | 1 | 1 @ $223.20 |
| Fuses Unlimited | KTK-8 | 1 | 29 | 1 | |
 AI Consolidated | KTK-8-BUSSMANN | 1 | -2 | 1 | 1 @ $18.89 |
| Future Electronics | 6028368 | 1 | 250 | 1 | 1 @ $22.64, 4 @ $21.71, 15 @ $20.86, 40 @ $20.25, 100 @ $19.70 |
 Digi-Key | 283-2465-ND | 1 | 7 | 1 | 1 @ $28.14, 5 @ $26.80, 10 @ $24.79, 50 @ $21.44, 100 @ $20.10, 250 @ $19.30 |
 Walmart | 115355005 | 1 | | 1 | 1 @ $22.77 |
 4 Star Electronics | KTK8 | 1 | | 1 | |
| Monarch Electric | 128395 | 1 | | 1 | 1 @ $19.24 |
| FinditParts | 5950653 | 1 | | 1 | |
 AmazonTP | B0025Q8W5W | 1 | | 1 | 1 @ $9.80 |
 AmazonTP | B07FQD1NQG | 1 | | 1 | 1 @ $25.79 |
 AmazonTP | B005T7C7FU | 1 | | 1 | 1 @ $9.14 |
 AmazonTP | B011NJ52AO | 1 | | 1 | 1 @ $63.33 |
 Raptor Supplies | AE8QKB | 1 | | 1 | 1 @ $14.74 |
 Newark | 18J5863 | 1 | 23 | 1 | 1 @ $57.18, 5 @ $54.33, 10 @ $40.37, 25 @ $30.14, 50 @ $24.04, 100 @ $20.28 |
| AmazonSC | B07FQD1NQG | 1 | | 1 | 1 @ $28.19 |
 bscsource.com | KTK8 | 1 | | 1 | 1 @ $17.99 |
| Guardian | KTK-8 | 1 | | 1 | |
| uri.com | KTK8 | 1 | -2 | 1 | 1 @ Contact your local branch for more information. |
 kempstoncontrols.co.uk | KTK-8 | 1 | 25 | 1 | 1 @ $23.48 |
| standardelectricsupply.com | 8089 | 1 | | 1 | 1 @ $388.90 |
 Kelly Hayes | KTK-8 | 1 | 6 | 1 | 1 @ $16.83 |
 Radwell | KTK-8 | 1 | 8 | 1 | 1 @ $32.00 |
 steinerelectric.com | 5018 | 1 | | 1 | 1 @ $27.45 |
| Widespread | KTK-8 | 1 | | 1 | |
| Digi-Key | 265014 | 1 | 3 | 1 | 1 @ $54.44, 5 @ $51.72, 10 @ $49.00, 50 @ $40.83, 100 @ $39.20 |
| grainger.ca | BUSKTK8 | 1 | | 1 | |
| Hutch and Son | KTK-8 | 1 | | 1 | |
| Crescent Electric Supply Co | 2140070 | 1 | | 1 | |
| RS Delivers | 851-1202 | 1 | 14 | 1 | 1 @ $38.64, 5 @ $35.93, 25 @ $33.57, 50 @ $31.52, 100 @ $29.71 |
| Guardian | KTK8 | 1 | | 1 | |
 Galco | KTK-8-BUSS | 10 | | 10 | 1 @ $21.43 |
| Crescent Electric Supply Co | KTK-8 | 1 | | 1 | |
| us.rs-online.com | 70150083 | 1 | 4 | 1 | 1 @ $51.03, 5 @ $48.60, 10 @ $44.96, 50 @ $38.88 |
 mostelectric.com | KTK-8 | 1 | 7 | 1 | 1 @ $13.72 |
 National Supply Network | 74974114 | 10 | -2 | 10 | 1 @ $31.68 |
 Allfuses | KTK-8 | 1 | 559 | 1 | 1 @ $9.44 |
 crescentelectric.com | 160625 | 1 | 74 | 1 | 1 @ $45.95 |
 superbreakers.com | KTK-8 | 1 | -2 | 1 | 1 @ $9.90 |
 Zoro | G1133921 | 1 | 1149 | 1 | 1 @ $19.23 |
 Tedss | 2026001251 | 1 | -2 | 1 | 1 @ $21.86 |
