DC Fuse Price in Pakistan 2026 — gPV PV Solar Fuse + Holder Buyer Guide
A DC fuse is a wire-element protection device installed inline on every solar PV string, every battery cable, and every DC distribution circuit in Pakistan. It blows on overcurrent before the wires burn, before the inverter trips, and ideally before any arc-flash event. NEPRA 2026 requires gPV-class fuses on every string. Cheap or wrong-class fuses can fail to extinguish DC arcs — leading to housing fires that cost more than the entire solar install.
This guide covers DC fuse prices in Pakistan for 2026, the gPV vs gG vs aR class distinction, the 10×38 vs 14×51 cartridge sizes, and the fuse holders that match each.
1. DC fuse classes — which one for solar
| Class | Use case | Pakistani standard |
|---|---|---|
| gPV (PV-specific) | Solar PV strings — designed for high-voltage DC arcs | IEC 60269-6, required by NEPRA 2026 |
| gG (general) | Distribution boards, motor feeders | IEC 60269-2 |
| aR (semiconductor) | Drives, inverters, sensitive electronics | IEC 60269-4 |
| aM (motor) | Motor starting (no overload protection) | IEC 60269-2 |
For solar PV strings in Pakistan: gPV is mandatory. Using gG or aR on a PV string is an immediate NEPRA inspection fail and dangerous in practice.
2. Cartridge sizes — 10×38 vs 14×51
| Size | Voltage rating | Current range | Use |
|---|---|---|---|
| 10×38 | up to 1000V DC | 1A–30A | Standard residential / small commercial solar strings |
| 14×51 | up to 1500V DC | 10A–125A | Industrial solar, high-current battery feeds |
| 22×58 | up to 1500V DC | 32A–400A | Utility / heavy industrial only |
3. DC fuse price in Pakistan 2026 — full table
| Model | Class | Size | Rating | Voltage | Price PKR |
|---|---|---|---|---|---|
| YCF8-PV-10/38-10A | gPV | 10×38 | 10A | 1000V DC | 950 |
| YCF8-PV-10/38-15A | gPV | 10×38 | 15A | 1000V DC | 1,050 |
| YCF8-PV-10/38-20A | gPV | 10×38 | 20A | 1000V DC | 1,150 |
| YCF8-PV-10/38-25A | gPV | 10×38 | 25A | 1000V DC | 1,250 |
| YCF8-PV-10/38-30A | gPV | 10×38 | 30A | 1000V DC | 1,400 |
| YCF8-PV-14/51-32A | gPV | 14×51 | 32A | 1500V DC | 2,400 |
| YCF8-PV-14/51-63A | gPV | 14×51 | 63A | 1500V DC | 3,200 |
| YCF8-PV-14/51-100A | gPV | 14×51 | 100A | 1500V DC | 4,500 |
| YCF8-PV-14/51-125A | gPV | 14×51 | 125A | 1500V DC | 5,800 |
| YCF8-HOLDER-10/38 | Holder DIN-rail | 10×38 | 1-pole | 1000V | 650 |
| YCF8-HOLDER-14/51 | Holder DIN-rail | 14×51 | 1-pole | 1500V | 1,200 |
| YCF8-HOLDER-NH00 | NH00 holder | NH00 | 2-pole | 1000V | 2,400 |
4. How to size a DC fuse for your PV string
Per IEC 60269-6:
- Calculate string short-circuit current: Isc(panel) × 1 (since one panel per string in series).
- Pick fuse rating = 1.25-1.5 × Isc. For most Pakistani 580W panels (Isc ~13A): fuse rating 15-20A.
- Pick voltage rating = Voc(string) × 1.25. For a 5-panel series string at 50V Voc each: 250V × 1.25 = 313V → pick 500V (or 1000V for safety margin).
- Use gPV class — mandatory for solar in Pakistan.
- Match cartridge size to fuse holder: 10×38 for residential, 14×51 for industrial.
Quick lookup
| String configuration | Recommended fuse |
|---|---|
| 5 panels × 580W series, 1000V system | YCF8-PV-10/38-20A from PKR 1,150 |
| 10 panels series-parallel, 1000V | YCF8-PV-10/38-25A per string |
| 15 panels industrial, 1500V | YCF8-PV-14/51-32A per string |
| Battery bank discharge 100A, 48V | YCF8-PV-14/51-125A on battery cable |
5. Installation
- Power off at the inverter or PV isolator. Verify zero voltage with a DC-rated tester.
- Insert fuse into holder. The holder has a hinge that opens for insertion.
- Mount holder on DIN rail in the solar combiner box, upstream of the DC isolator.
- Wire PV string + through one pole of the fuse holder, then to the isolator, then to the inverter MPPT input.
- Repeat for PV string − (each string needs both + and − fuses for full protection).
- Label the fuse rating on the combiner box for future maintenance.
6. CNC vs Mersen vs Bussmann — honest comparison
| CNC YCF8 PV | Mersen NF | Bussmann PV | |
|---|---|---|---|
| 10×38 20A 1000V (PKR) | 1,150 | 4,800 | 3,500 |
| 14×51 63A 1500V (PKR) | 3,200 | 12,500 | 9,800 |
| IEC certification | 60269-6 | 60269-6 | 60269-6 |
| UL listing | No | Yes | Yes |
| Warranty Pakistan | 5 years | 2 years | 2 years |
| Local availability | Excellent | Lahore + Karachi only | Karachi only |
For Pakistani residential and commercial solar (which doesn't require UL listing), CNC YCF8 delivers equivalent functionality to Mersen/Bussmann at one-quarter the price. UL listing matters only for US-export-grade installations.
7. FAQ
Cheapest DC fuse for solar in Pakistan 2026?
CNC YCF8-PV-10/38-10A at PKR 950 — gPV class, 1000V DC, suitable for any residential PV string up to 5 panels in series.
Can I use AC fuses on a DC solar string?
No. AC fuses are not designed to extinguish DC arcs and can sustain a glowing arc instead of breaking the circuit, leading to fire. Always use gPV-class fuses on solar.
What's the difference between gPV and standard gG fuses?
gPV is specifically tested to break high-voltage DC arcs typical of PV strings (up to 1500V). gG is tested for AC and lower-voltage DC. Using gG on a PV string is a NEPRA inspection fail and a fire risk.
Do I need fuses on both + and − of each string?
Per IEC 60269-6 best practice: yes, both polarities. Some installations use a single fuse on + only, but this leaves a fault path through − un-protected. Best practice: dual-pole fuse holder per string.
How often do DC fuses need replacing?
Only after a fault — the fuse blows once and must be replaced. The element is wire that melts on overcurrent and cannot be reused.
8. Need help sizing DC fuses for your solar install?
Send your panel datasheet + string configuration on WhatsApp +92 326 1111 376. We'll size fuses + holders per IEC 60269-6 and quote the CNC bundle. Free Pakistan delivery on orders over PKR 5,000.