gPV Photovoltaic Fuse-Links, 600 to 1500VDC, and NH Bases
DENCO gPV photovoltaic fuses come in two catalog series: 600 to 1100VDC (p.139) and 1500VDC (p.140), both category gPV with a visual indicator and a DENCO type F microswitch option. Page 140 also lists NH bases for photovoltaic fuses from 63A to 630A at 1100/1500VDC.
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The 600 to 1100VDC series carries catalog numbers D5237, D5238/1, D5238, D5295/1 to D5299/5 and D5295 to D5299; the 1500VDC series carries D5655/1 to D5657/3 and D5655 to D5657. Each page prints dimensions in millimeters, a gPV time-current curve (pre-arcing time against prospective RMS current) and fuse I²t values at 1100VDC or 1500VDC. Page 140 gives the basic dimensions of an NH-1 250A 1500VDC base and an NH-2 400A 1500VDC base.
The working schematic on page 138 shows fuses in a photovoltaic installation. It labels PV modules, entrance, DC, DC/AC, exit and distribution modules, an inverter, 600/1200VDC fuses, ultra-rapid fuses, type NH fuses, type N and NS disconnector switches, a horizontal disconnector switch, IP20 protection, lightning rods and a breaker, with a time-current comparison for 600VDC and 1200VDC.
Specifications
| Parameter | Value |
|---|---|
| Voltage, series 1 | 600VDC to 1100VDC |
| Voltage, series 2 | 1500VDC |
| Utilization category | gPV |
| Bases | 63A to 630A, 1100/1500VDC |
| NH-1 base | 250A, 1500VDC |
| NH-2 base | 400A, 1500VDC |
Construction and options
- Visual indicator
- DENCO type F microswitch
- Matching NH bases
Applications
- Photovoltaic installations (working schematic, p.138)
Standards and equivalents
- IEC 60269-1 & IEC 60269-6, DIN VDE 0636-2
- In accordance with IEC 60269-1 and IEC 60269-6, DIN VDE 0636-2
Wording is the catalog’s own. “In accordance with” a standard is not the same as certified or listed to it.
Curves and drawings
The catalog prints the following for this series: gpv time-current curve, 1100vdc series, gpv time-current curve, 1500vdc series, i²t values at 1100vdc, i²t values at 1500vdc, dimension drawings, base dimension drawings (nh-1, nh-2), pv working schematic. This series is on pp.138–140 of the January 2025 DENCO catalog. Access the catalog or ask for the drawing or curve you need.
Technical review
Specifications on this page are quoted from DENCO’s product catalog. Confirm any rating against DENCO engineering before specifying.