This document introduces the low profile snap mount type of 3AG fuse, including approvals, specifications, installation, fuse installation and other contents
The Littelfuse 3AG fuseholder is a low‑profile snap‑mount type designed for panel thicknesses from .031" to .125". It features a black phenolic body (UL 94V0) with a thermoplastic bezel, cap and lens (UL94V2), brass tin‑plated terminals, and is UL and CSA certified.
The leaflet lists electrical ratings (15 A up to 250 V), dielectric strength (1500 V minimum), ambient temperature ranges (‑40 °C to +85 °C non‑indicating, ‑40 °C to +60 °C indicating), mounting hole size (.625" square NEMA Q.C.), and detailed ordering information for the 348 and 344 series.
| Rated current | 15 A |
|---|---|
| Maximum voltage | 250 V |
| Dielectric strength | 1500 V minimum |
| Ambient temperature (non‑indicating) | -40 °C to +85 °C |
| Ambient temperature (indicating) | -40 °C to +60 °C |
| Mounting hole size | .625" square NEMA Q.C. |
| Body material | Black phenolic (UL 94V0) |
| Bezel, cap and lens material | Thermoplastic (UL94V2) |
| Terminal material | Brass, tin‑plated |
| Overall height with fuse assembled | 1.95" |
Insert a fuse into the cap and push the assembly into the body until it latches; press in and down to unlatch for removal.
The non‑indicating version operates from –40 °C to +85 °C, while the indicating version operates from –40 °C to +60 °C.