DC Fuse 15A, 20A, 32A | 1000V Solar Fuse Holder for PV Systems

DC fuse 1000V is one of the most important low-cost protection parts in a solar PV string when you need dedicated overcurrent protection on the DC side. This CNC Electric solar fuse is available in 15A, 20A, and 32A ratings in a 10×38 fast-blow format — all priced at Rs.400 each. It is a simple but serious safety component for rooftop systems powering ACs, fridges, water pumps, UPS charging, and solar inverter-backed homes and shops across Pakistan.

Key Features

• 1000V DC rated solar PV fuse
• 10×38 mm cylindrical fast-blow cartridge format
• Three current options: 15A, 20A, 32A
• Designed for solar string overcurrent protection
• Fits standard DIN-rail PV fuse holders (RT18-32 YCF8 and compatible)
• Simple, low-cost one-shot DC string protection

Technical Specifications

Variants & Prices (Live on Shopify)

All three variants are the same price. Pick the rating that matches your string current, cable size, and inverter design calculations. This is the cartridge only — buy the matching DC Fuse Holder YCF8 (Rs.450) separately if you don't already have one.

What This Product Does

A DC fuse protects a solar string by opening the circuit when current rises above the safe limit. It sacrifices itself to stop a bigger problem. Buyers searching for dc fuse, solar fuse, 1000v fuse, or pv fuse 10×38 are usually trying to complete a proper DC protection setup inside a solar DB or combiner box.

Fuse vs MCB for Solar Strings

A DC fuse is often preferred when you want dedicated string overcurrent protection at low cost with very clear replacement logic. A DC MCB is preferred when resettable switching and isolation are more important. Many professional solar systems in Pakistan use both in different positions. For surges, use a dedicated DC SPD.

Selection Guide

Installation Guide

1. Select the correct fuse rating based on the actual PV string design.
2. Install the fuse in a matching 10×38 / RT18-style DIN-rail holder.
3. Ensure polarity, cable termination, and insulation spacing are correct on the DC side.
4. Verify continuity and the rest of the string protection layout before energising.
5. Replacement after a blown fuse only after the fault cause is identified and corrected.

What This Product Does NOT Protect Against

This fuse does not protect against reverse polarity, arc faults, or ground faults. It does not handle lightning or surge events — use a DC SPD 1000V. It does not isolate the circuit for convenient switching like a DC isolator or DC breaker. It is for DC solar side only.

Related Products

• DC Fuse Holder YCF8 — Rs.450
• DC 2P MCB 500V — Rs.1,600
• DC SPD 1000V
• MC4 Connectors
• Solar Bundles

FAQs

Price?
Rs.400 for any of the 15A, 20A, or 32A variants.

What is the use of a solar fuse?
It protects a PV string against overcurrent by opening the circuit when current exceeds the fuse rating.

Is this a 10×38 PV fuse?
Yes — cylindrical 10×38 mm cartridge for solar PV applications.

Fuse vs MCB in solar?
Fuse is cheaper and one-shot. MCB is resettable and can also act as a switch.

Can I use this fuse without a holder?
No — use a proper matching fuse holder for safe installation.

Does it protect against lightning?
No. Use a DC SPD for surge protection.

Which rating — 15A, 20A, or 32A?
Based on your actual PV string design, current, cable size, and inverter requirements.

CNC Electric Pakistan offers free delivery over Rs.10,000. WhatsApp 0326-1111376.