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GMA-1-R Eaton 1 A Quick-Blow Glass Fuse 250 Vac
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pEaton GMA-1-R — 1 A, 250 V, fast-acting glass cartridge fuse, 35 A at 250 Vac; 10,000 A at 125 Vac interrupting./p
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GMA-1-R Eaton 1 A Quick-Blow Glass Fuse 250 Vac
GMA-1-R Eaton 1 A Quick-Blow Glass Fuse 250 Vac belongs to the the maker range. It carries 1 A, rated 250 Vac, in a glass body.
Technical Data
| Parameter | Rating |
|---|---|
| Part number | GMA-1-R |
| Voltage rating | 250 Vac |
| Rated current | 1 A |
| Maximum voltage drop | 300 mV |
| Typical melting I2t | 0.48 A²s |
| Body | Glass tube, 5 x 20 mm |
| AC interrupting rating | 35 A at 250 Vac; 10,000 A at 125 Vac |
| Element | single element |
| End caps | silver-plated brass 63-315 mA, nickel-plated 500 mA-15 A |
| Typical DC cold resistance | 0.163 Ω |
| Design standard | UL/CSA 248-14 |
Design Notes
- Interrupting capability is 35 A at 250 Vac; 10,000 A at 125 Vac — confirm the circuit's prospective fault current stays below this.
- 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 250 Vac; a lower-rated part is not a safe substitute.
- Do not upsize beyond 1 A to stop nuisance trips — fix the cause instead.
Where It Is Used
Typical places this fuse turns up:
- EV
Common Questions
What are the ratings of the GMA-1-R?
1 A continuous at 250 Vac, interrupting rating 35 A at 250 Vac; 10,000 A at 125 Vac.
Can the GMA-1-R be used on a higher fault-current circuit?
No — its interrupting rating is 35 A at 250 Vac; 10,000 A at 125 Vac. Choose a part whose breaking capacity exceeds the prospective fault current.
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