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Eaton GMA-6-R 6 A Glass Tube Fuse, Fast-Blow, 125 Vac
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pEaton GMA-6-R — 6 A, 125 V, fast-acting glass cartridge fuse, 10,000 A at 125 Vac interrupting./p
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Eaton GMA-6-R 6 A Glass Tube Fuse, Fast-Blow, 125 Vac
Built by Eaton, the GMA-6-R carries 6 A, rated 125 Vac, uses a fast-acting element, in a glass body.
Technical Data
| Parameter | Rating |
|---|---|
| Part number | GMA-6-R |
| AC interrupting rating | 10,000 A at 125 Vac |
| Body | Glass tube, 5 x 20 mm |
| Maximum voltage drop | 180 mV |
| Breaking capacity | 35 A at 250 Vac up to 3 A, 10,000 A at 125 Vac, 150-200 A above 6 A |
| Typical DC cold resistance | 0.017 Ω |
| Voltage rating | 125 Vac |
| Typical melting I2t | 45 A²s |
| End caps | silver-plated brass 63-315 mA, nickel-plated 500 mA-15 A |
| Design standard | UL/CSA 248-14 |
| Element | single element |
| Rated current | 6 A |
Selection Notes
- Interrupting capability is 10,000 A at 125 Vac — confirm the circuit's prospective fault current stays below this.
- Fast element suits resistive and semiconductor loads rather than motors with high inrush.
- Because it opens within milliseconds, downstream semiconductors see less let-through energy.
- Glass body lets you inspect the element after a fault.
- Best kept for lower fault-current circuits where visual diagnosis matters.
- Working voltage must stay at or below 125 Vac; a lower-rated part is not a safe substitute.
- Do not upsize beyond 6 A to stop nuisance trips — fix the cause instead.
Typical Applications
Engineers usually specify it for these duties:
- EV
Q&A
What are the ratings of the GMA-6-R?
6 A continuous at 125 Vac, interrupting rating 10,000 A at 125 Vac.
Is the GMA-6-R fast-acting or time-delay?
It is fast-acting. Expect it to open quickly on overload.
Can the GMA-6-R be used on a higher fault-current circuit?
No — its interrupting rating is 10,000 A at 125 Vac. Choose a part whose breaking capacity exceeds the prospective fault current.
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