Bussmann PV-315A-3L-B-15 Fuse-link, high speed, 350 A, DC 1500 V, 3L, 75 x 91 x 205 mm, gPV, UL, IEC, with indicator, bolted connections

Yes. The PV-315A-3L-B-15 is a high speed fuse-link rated DC 1500 V, which is the standard maximum system voltage on utility scale and large commercial PV strings. It is a gPV type, meaning it is built for the photovoltaic duty cycle (low fault current, long DC arc) rather than general AC branch circuit protection. Do not apply it above 1500 V DC.

It carries a 33 kAIC interrupting rating. For a combiner or recombiner box, the available fault current at the fuse terminals has to be at or below 33 kA for the fuse to be correctly applied. On PV systems the module-side contribution is usually well under that, but battery or grid-tied DC buses can exceed it, so the short circuit study governs.

It uses bolted connections in a 3L body, so it bolts directly to busbar or to a bolt-in base rather than dropping into a clip-style holder. Body size is 201.4 mm long by 91 mm wide by 91 mm high, so allow that footprint plus bending room for the cable or bar. If your existing gear is set up for blade or cylindrical fuses, this one will not retrofit without changing the base.

Watt loss is 72 W at rating. That is real heat inside a combiner or recombiner cabinet, and with several fuses on the same bus it adds up fast. Size ventilation or derate the enclosure accordingly, and keep in mind that fuse ratings assume the published thermal conditions, so a hot, tightly packed box shortens what the link will carry continuously.

Yes, it is supplied with an indicator, so a technician can identify the opened link visually at the combiner without pulling and testing each fuse. That matters on large PV sites where a single open string is otherwise only found through production data or a full continuity sweep.

It is certified to IEC 60269 and is CE Marked, and the part is also UL listed. That covers both the North American and European submittal paths on a PV project, which is what most EPCs need when the same design is deployed across markets.

Order by the genuine Bussmann part number PV-315A-3L-B-15. It ships in standard packaging as a single fuse-link weighing about 1614 g, so it is a substantial bolt-in part, not a small cylindrical cartridge. There is one model on the order, no finish or option codes to specify.