Littelfuse JLS250
MPNJLS250
Fuse, 250A, 600V, 200kAIC, Class J, Fast-Acting|250 Amp Fuse, High Speed, North American Style, Brand or Series: Class J, Type: Bolt Mount, Voltage Rating: 600 VAC, Interrupting Rating: 200000 Amp VAC RMS Symmetrical, Dimensions: 1 1/2 Diameter x 5 3/4 Length Inch, Features: Fast Acting.
$219.64 – $586.04Ref. price · indicative, final on quote
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Jul 2026
Specifications
| Parameter | Value |
|---|---|
| Equivalent series | A4J, JKS, JLS |
| Equivalent brand and series | Bussmann JKS; Littelfuse JLS; Mersen A4J |
| Compatible fuse block series | LFJ |
| AC voltage rating | 600V AC |
| DC voltage rating | Not Rated |
| Body material | Melamine |
| Standards | CE; CSA Certified; QPL-W-F-1814; UL 248-8 Class J; UL Listed |
| Amps | 250 A |
| Brand | LITTELFUSE |
| Class | J |
| Speed | Fast Acting |
| Length | 3-3/8 in |
All specifications
| Parameter | Value |
|---|---|
| Element | Single |
| Diameter | 7-1/8 in |
| Fuse size | 3-3/8 in L x 7-1/8 in dia |
| Body style | Blade |
| Interrupt rating | 200kA at 600V AC |
| Visual indication | Nonindicating |
| Fits fuse block style | Nonrejection |
MPN
JLS250