$159.00
| Voltage | AH/kVA | Length | Width | Height | Weight |
|---|---|---|---|---|---|
| 600 V AC | 250 A | N/A | N/A | N/A | N/A |
| Voltage | 600 V AC |
| Amp/H | 250 A |
| Length | N/A |
| Width | N/A |
| Height | N/A |
| Weight | N/A |
The LIMITRON JKS-250 by BUSSMANN (Eaton) is a UL Class J fast-acting, current-limiting fuse designed to protect rectifiers, inverters, feeders, and DC common-bus rails in UPS and power-electronic systems. This listing features reclaimed, continuity-tested units removed from decommissioned, fully functional equipment. test
Fast-Acting, Current-Limiting:
LIMITRON® element clears rapidly with low let-through I²t to protect sensitive components (Class J).
Compact Class J Footprint:
Smaller than RK fuses for tight panels; knife-blade ends fit standard Class J holders/blocks.
High Interrupt Ratings:
600 V AC with 200 kA AC interrupt rating and 300 V DC with 100 kA DC capability (typ.).
Reclaimed & Verified:
Each unit is continuity-tested and visually inspected; new Eaton BUSSMANN stock available by request.
| Parameter | Value |
| Manufacturer | BUSSMANN (Eaton) |
| Part Number | JKS-250 |
| Fuse Type / Category | UL Class J, fast-acting (LIMITRON®), non-indicating |
| Rated Voltage | 600 V AC / 300 V DC |
| Rated Current | 250 A |
| Interrupting Capacity | 200 kA (AC @ 600 V) | 100 kA (DC @ 300 V) |
| Indicator | None (for visual indication, use indicating holders/blocks) |
| Body / Size | Class J cartridge, knife-blade ends |
| Terminals / Mounting | Knife-blade; holder/clip mounted in Class J blocks |
| Pre-arcing I²t | Per JKS series table (250 A) |
| Clearing I²t | Per JKS series table @ 60 Hz |
| Power Loss (at rated) | See datasheet |
| Dimensions | Standard Class J outline (refer to JKS datasheet drawing for exact size) |
| Approx. Weight | — |
| Compliance / Approvals | UL 248-8 Listed; CSA; RoHS |
| UPC / EAN | — |
| Fuse | Compatible UPS/Power-Electronics Models | Notes |
| JKS-250 | UPS frames, feeders, and converter stacks specifying 600 VAC/300 VDC Class J fast-acting fuses in the 250 A range. | Verify Class J holder compatibility and mechanical clearances with the OEM BOM. |
