1) IEC: 100 A @ 250 VAC / 100 A @ 125 VDC, resistive
1) UL: 200 A @ 250 VAC, p.f. ≥ 0.99 / 200 A @ 125 VDC, resistive
2) IEC: 100 A @ 250 VAC / 100 A @ 125 VDC, resistive
2) UL: 100 A @ 250 VAC, p.f. ≥ 0.99 / 100 A @ 125 VDC, resistive
UMF 250 -> Fuse with tin-plated caps, Approval Status: VDE, UL LISTED, cURus, Free of CCC, PSE JET, KTL
UMF 250 (Au) -> Fuse with gold-plated caps, Approval Status: VDE Mark, cURus and PSE JET
UMC 250 -> Clip, Approval Status: VDE UG Mark and cURus
UMK 250 = UMF 250 (Au) + UMC 250
There is no approval existing for the combination fuse and clip UMK 250, but the fuse and the clip are fully approved independently at VDE/UL. See details above.
In the reflow soldering process, the fuse must have gold-plated caps, otherwise fuse and clip would be soldered together. For fuse replacement in the field, a standard UMF 250 fuse with tin-plated caps can be used.
It is not allowed to replace higher rated current than 4 A in the clip.