Solar PV Fuse Manufacturer | 1000V 1500V DC gPV Fuse for PV Systems
Solar PV fuses are essential protection components used in photovoltaic systems to prevent overcurrent and short-circuit damage. MOREDAY provides high-performance DC fuses and fuse holders designed for 1000V and 1500V solar installations. Our gPV fuse solutions are widely used in solar combiner boxes, inverters, and battery energy storage systems, ensuring reliable DC circuit protection for residential, commercial, and utility-scale PV projects.
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MOREDAY Fuse Product Lineup - Complete Technical Specifications
MDPV-30/1000V 1P DC Fuse Holder
- Poles: 1P, 2P, 3P, 4P
- Rated Current: 1A-63A (18 ratings)
- Breaking Capacity: 6000A (In ≤ 6A to 40A), 4500A (In 50A, 63A) Rated Voltage: 1P: 240/415V~, 2P/3P/4P: 415V~
- Rated Voltage: 1P: 240/415V~, 2P/3P/4P: 415V~
- Curve Code: B, C, D
- Mechanical Durability: 10,000 cycles
- Electrical Durability: 4,000 cycles
- Protection Degree: IP20/IP40
MDPV-30/1000V 2P DC Fuse Holder
- Poles: 1P, 2P, 3P, 4P
- Rated Current: 1A-63A (18 ratings)
- Breaking Capacity: 6000A (In ≤ 6A to 40A), 4500A (In 50A, 63A) Rated Voltage: 1P: 240/415V~, 2P/3P/4P: 415V~
- Rated Voltage: 1P: 240/415V~, 2P/3P/4P: 415V~
- Curve Code: B, C, D
- Mechanical Durability: 10,000 cycles
- Electrical Durability: 4,000 cycles
- Protection Degree: IP20/IP40
MDPV-30B 1000V Series Fuse Holder
- Poles: 1P, 2P, 3P, 4P
- Rated Current: 1A-63A (18 ratings)
- Breaking Capacity: 6000A (In ≤ 6A to 40A), 4500A (In 50A, 63A) Rated Voltage: 1P: 240/415V~, 2P/3P/4P: 415V~
- Rated Voltage: 1P: 240/415V~, 2P/3P/4P: 415V~
- Curve Code: B, C, D
- Mechanical Durability: 10,000 cycles
- Electrical Durability: 4,000 cycles
- Protection Degree: IP20/IP40
MDPV-30B 1000V Series with Light Fuse Holder
- Poles: 1P, 2P, 3P, 4P
- Rated Current: 1A-63A (18 ratings)
- Breaking Capacity: 6000A (In ≤ 6A to 40A), 4500A (In 50A, 63A) Rated Voltage: 1P: 240/415V~, 2P/3P/4P: 415V~
- Rated Voltage: 1P: 240/415V~, 2P/3P/4P: 415V~
- Curve Code: B, C, D
- Mechanical Durability: 10,000 cycles
- Electrical Durability: 4,000 cycles
- Protection Degree: IP20/IP40
MDPV-32 1500V Series Fuse Holder
- Poles: 1P, 2P, 3P, 4P
- Rated Current: 1A-63A (18 ratings)
- Breaking Capacity: 6000A (In ≤ 6A to 40A), 4500A (In 50A, 63A) Rated Voltage: 1P: 240/415V~, 2P/3P/4P: 415V~
- Rated Voltage: 1P: 240/415V~, 2P/3P/4P: 415V~
- Curve Code: B, C, D
- Mechanical Durability: 10,000 cycles
- Electrical Durability: 4,000 cycles
- Protection Degree: IP20/IP40
MDPV2-32 2 1500V Series Fuse Holder
- Poles: 1P, 2P, 3P, 4P
- Rated Current: 1A-63A (18 ratings)
- Breaking Capacity: 6000A (In ≤ 6A to 40A), 4500A (In 50A, 63A) Rated Voltage: 1P: 240/415V~, 2P/3P/4P: 415V~
- Rated Voltage: 1P: 240/415V~, 2P/3P/4P: 415V~
- Curve Code: B, C, D
- Mechanical Durability: 10,000 cycles
- Electrical Durability: 4,000 cycles
- Protection Degree: IP20/IP40
MDPV Series Fuse
- Poles: 1P, 2P, 3P, 4P
- Rated Current: 1A-63A (18 ratings)
- Breaking Capacity: 6000A (In ≤ 6A to 40A), 4500A (In 50A, 63A) Rated Voltage: 1P: 240/415V~, 2P/3P/4P: 415V~
- Rated Voltage: 1P: 240/415V~, 2P/3P/4P: 415V~
- Curve Code: B, C, D
- Mechanical Durability: 10,000 cycles
- Electrical Durability: 4,000 cycles
- Protection Degree: IP20/IP40
Why Choose MOREDAY?
MOREDAY is a professional Fuse manufacturer with over 17 years of experience in designing, producing, and exporting fuse. Located in Yueqing – China’s “Electric Device Metropolis” – we serve distributors, contractors, and electrical engineers across 30+ countries with high-quality, IEC/CE/RoHS certified circuit protection solutions.
- MDPV-30/32 DC fuse is mainly used in the fuse holder to protect thesolar cell string from over-current.
- The fuse holder with LED indicatorshows the working status of the internal fuse.
- Fuse over-currentprotection is a very important unit for safe operation in solarphotovoltaic system.
- 1000V /1500V fuse holder with 10*38, 10*85,10*65mm fuse, can be installed in the PV combiner box with the inputvoltage of 1000V/1500V.
How to Select the Right Fuse for Your Application
Proper MCB selection requires considering multiple factors. Use this comprehensive guide to specify the correct circuit breaker for your installation.
System Voltage | Recommended Fuse |
|---|---|
600V DC |
Standard DC Fuse |
1000V DC |
1000V PV Fuse |
1500V DC |
1500V Solar Fuse |
PV String Current | Recommended Fuse |
|---|---|
10-15A |
15A Fuse |
15-20A |
20A Fuse |
20-30A |
30A Fuse |
Fuse Size | Typical Application |
|---|---|
10x38 mm |
Small solar systems |
10x85 mm |
PV combiner box |
14x85 mm |
High current PV |
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MCB Trip Curve Comparison: B vs C vs D Explained
Understanding trip curve characteristics is essential for proper MCB selection. The curve type determines when the magnetic element provides instantaneous protection against short circuits.
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MCB Manufacturing Process - From Raw Materials to Certified Products
Our Production Workflow As a vertically integrated MCB manufacturer, we control every stage:
1. Raw Material Inspection
- Imported silver alloy contacts
- High-purity electrolytic copper terminals
- PA66 flame-retardant housing (UL94 V0)
- Bimetallic strips from certified suppliers
2. Automated Assembly
- Robotic contact assembly (±0.01mm precision)
- Arc chamber installation & testing
- Thermal & magnetic element calibration
- Final assembly in Class 10,000 cleanroom
3. 100% Quality Testing
- Automatic electrical testing station
- Temperature rise measurement
- Dielectric strength testing
- Mechanical operation testing (20+ cycles)
4. Certification & Packaging
- Batch traceability labeling
- IEC/CE compliance documentation
- Anti-static packaging
- Custom branding (OEM orders)
Applications
Electrical Solutions for Every Need
As a trusted electrical equipment manufacturer, MOREDAY delivers high-performance electrical solutions designed for residential, commercial, industrial, and renewable energy applications—providing cost savings, operational efficiency, and reliability across diverse industries worldwide.
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MCB Factory Image
Discover Our Best-Selling Electrical Equipment – High Efficiency, Reliable Performance, and Trusted by Electrical Equipment Suppliers Worldwide.
More Than Just a MCB Manufacturer
At MOREDAY, we go beyond manufacturing MCBby offering a suite of value-added services tailored to meet your project needs. Our commitment to excellence ensures that every customer receives personalized attention, expert guidance, and seamless support throughout their journey with us.
Technical Consultation
Our engineering team provides professional DC protection design support for solar PV systems. From breaker selection to full combiner box configuration, we help you ensure safety, compliance, and long-term reliability.
OEM & Custom Solutions
We support logo printing, customized voltage ratings, special tripping curves, and private label packaging. MOREDAY helps distributors and project contractors build competitive branded products for local markets.
Certified Quality Assurance
Our MCB products comply with CE, CB, and TÜV standards. Each unit undergoes strict testing for breaking capacity, temperature rise, and durability to meet international project requirements.
Global Project Experience
MOREDAY products are widely used in solar power plants, energy storage systems, EV charging stations, and industrial applications across Europe, Asia, and Africa.
Knowledge About MCB
- What Is a PV Fuse?
A miniature circuit breaker (MCB) is an automatically operated electrical switch designed to protect circuits from overcurrent damage caused by overloads or short circuits. Unlike fuses that must be replaced after operating, MCBs can be reset and reused indefinitely. They work through two protection mechanisms: a thermal element (bimetallic strip) that provides time-delayed protection against overloads, and a magnetic element (solenoid) that provides instantaneous protection against short circuits, typically operating in 0.01-0.1 seconds.
- PV Fuse vs Circuit Breaker
Modern MCBs from our manufacturing facility employ two protection mechanisms:
1. Thermal Protection (Overload)
- Bimetallic strip heats and bends under prolonged overcurrent
- Provides time-delayed tripping for overload conditions
- Allows temporary harmless overcurrents (motor starting)
- Typically trips at 1.13-1.45x rated current within 1 hour
2. Magnetic Protection (Short Circuit)
- Electromagnetic solenoid activates under sudden high current
- Provides instantaneous tripping for fault conditions
- Operates in milliseconds (0.01-0.1 seconds)
- Prevents arc flash and equipment damage
- How to Select Solar Fuse?
- Operating Mechanism: The handle and latching mechanism
- Contacts: The conducting parts that connect and disconnect the circuit
- Arc Extinguishing Chamber: Quenches the arc formed during contact separation
- Thermal Element: Bimetallic strip for overload protection
- Magnetic Element: Solenoid for short-circuit protection
- Terminals: Connection points for incoming and outgoing cables
- Fuse for Combiner Box Explained
B-curve MCBs trip at 3-5 times the rated current and are ideal for resistive loads like lighting and heating. C-curve MCBs trip at 5-10 times the rated current, making them suitable for general-purpose applications including slightly inductive loads like small motors—this is the most commonly used curve representing about 90% of installations. D-curve MCBs trip at 10-20 times the rated current and are designed for highly inductive loads with high inrush currents such as large motors, transformers, and welding equipment.
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We provide samples for free, you just need to tell us what you need