LMDF-32X 32A 1000V DC PV Fuse Holder 10x38mm
LMDF-32X 32A 1000V DC PV Fuse Holder 10x38mm
Model：LMDF-32X
Rated Voltage：DC 1000V
Fuse Size：10 x 38mm (gPV/DC type)
Number of Poles：1P
Mounting：DIN-rail (35mm)
Indicator：Red LED fuse blown indicator
Terminal Connection：Screw terminal, max. 35mm² cable
Material：Flame-retardant thermoplastic
Operating Temperature：-25°C to +70°C
Certifications：CE, IEC 60269, RoHS
Model：LMDF-32X
Rated Voltage：DC 1000V
Fuse Size：10 x 38mm (gPV/DC type)
Number of Poles：1P
Mounting：DIN-rail (35mm)
Indicator：Red LED fuse blown indicator
Terminal Connection：Screw terminal, max. 35mm² cable
Material：Flame-retardant thermoplastic
Operating Temperature：-25°C to +70°C
Certifications：CE, IEC 60269, RoHS
1. Product Overview
The LVMA LMDF-32X is a high-performance DC fuse holder specifically engineered for solar photovoltaic (PV) systems. Designed to accommodate 10x38mm cylindrical fuses, this 1000V DC, 32A rated holder provides critical overcurrent and short-circuit protection for PV strings, combiner boxes, and DC distribution panels. Built with safety and reliability in mind, it features a visual blown-fuse indicator, DIN rail compatibility, and robust construction to withstand harsh outdoor and industrial environments.
2. Key Features
- PV-Specific Design: Rated for 1000V DC and up to 32A, ideal for protecting solar PV modules and wiring.
- LED Blown-Fuse Indicator: Built-in red LED lights up when the fuse blows, enabling quick visual inspection and troubleshooting.
- Universal Compatibility: Fits standard 10x38mm cylindrical PV fuses, offering flexibility for system design.
- DIN Rail Mounting: Standard 35mm DIN rail design for easy installation in combiner boxes and control panels.
- Safety Construction: Flame-retardant, impact-resistant housing ensures durability and fire safety.
- Tool-Free Operation: Spring-loaded terminal design allows for fast, secure wire connections without special tools.
- CE Certified: Compliant with international safety standards for low-voltage electrical components.
3. Technical Specifications
| Parameter | Specification |
|---|---|
| Product Model | LMDF-32X |
| Rated Voltage | 1000V DC |
| Rated Current | 32A (max) |
| Fuse Size | 10x38mm cylindrical fuse |
| Mounting Type | 35mm DIN Rail |
| Indicator | LED blown-fuse indicator (red light) |
| Terminal Type | Screw terminal |
| Operating Temperature | -40°C ~ +85°C |
| Housing Material | Flame-retardant engineering plastic (UL94 V-0) |
| Protection Class | IP20 (indoor use, suitable for combiner boxes) |
| Compliance | CE, IEC 60947-7-3 |
4. Working Principle
The LVMA LMDF-32X fuse holder safely contains and protects the PV fuse within the DC circuit:
- Normal Operation: Current flows through the holder and the intact fuse, with the LED remaining off.
- Overcurrent/Short-Circuit: When the fuse element melts due to overcurrent, the LED circuit activates, lighting up the indicator to signal a blown fuse.
- Isolation: The holder provides physical isolation of the fuse, preventing accidental contact with live parts and containing arc energy during fuse operation.
- Easy Replacement: The modular design allows for quick fuse replacement without removing the entire holder from the panel, minimizing system downtime.
5. Applications
- Solar Photovoltaic Systems: PV combiner boxes, string-level protection, and solar panel arrays.
- Renewable Energy Systems: Off-grid solar, battery energy storage systems (BESS), and wind turbine auxiliary circuits.
- DC Power Distribution: Telecommunication power supplies, industrial DC control panels, and electric vehicle charging infrastructure.
- Off-Grid Power Systems: Remote monitoring systems, telecom towers, and standalone solar installations.
6. Installation Instructions
- Mounting: Snap the LMDF-32X holder onto a standard 35mm DIN rail inside the combiner box or distribution panel.
- Wiring: Connect the positive PV string wire to the line terminal and the negative/load wire to the load terminal, ensuring all connections are tight.
- Fuse Installation: Insert a 10x38mm PV fuse into the holder, ensuring it is fully seated and the cap is securely closed.
- Verification: Energize the circuit and confirm the LED indicator remains off. If the LED lights up immediately, check the fuse for continuity.
- Maintenance: Periodically inspect the LED indicator. If lit, disconnect power before replacing the fuse with a matching 10x38mm PV-rated fuse.
7. Why Choose LVMA LMDF-32X PV Fuse Holder?
- Reliable Protection: Designed for the high DC voltages and currents of solar systems, preventing damage to expensive PV modules.
- Quick Troubleshooting: The LED indicator eliminates guesswork, reducing maintenance time and improving system uptime.
- Durable Construction: Flame-retardant housing and corrosion-resistant terminals ensure long-term performance in harsh environments.
- Cost-Effective: Offers premium features at a competitive price point, ideal for large-scale solar projects.
- Global Compliance: CE certification ensures compatibility with international safety standards for export markets.
8. Technical Documents & Support
- Download the full datasheet for detailed specifications, wiring diagrams, and installation instructions.
- Contact our engineering team for custom pole configurations or OEM/ODM solutions for large-scale projects.
- Request a quote with your project details for bulk pricing, lead times, and compliance certifications.
1. Product Overview
The LVMA LMDF-32X is a high-performance DC fuse holder specifically engineered for solar photovoltaic (PV) systems. Designed to accommodate 10x38mm cylindrical fuses, this 1000V DC, 32A rated holder provides critical overcurrent and short-circuit protection for PV strings, combiner boxes, and DC distribution panels. Built with safety and reliability in mind, it features a visual blown-fuse indicator, DIN rail compatibility, and robust construction to withstand harsh outdoor and industrial environments.
2. Key Features
- PV-Specific Design: Rated for 1000V DC and up to 32A, ideal for protecting solar PV modules and wiring.
- LED Blown-Fuse Indicator: Built-in red LED lights up when the fuse blows, enabling quick visual inspection and troubleshooting.
- Universal Compatibility: Fits standard 10x38mm cylindrical PV fuses, offering flexibility for system design.
- DIN Rail Mounting: Standard 35mm DIN rail design for easy installation in combiner boxes and control panels.
- Safety Construction: Flame-retardant, impact-resistant housing ensures durability and fire safety.
- Tool-Free Operation: Spring-loaded terminal design allows for fast, secure wire connections without special tools.
- CE Certified: Compliant with international safety standards for low-voltage electrical components.
3. Technical Specifications
| Parameter | Specification |
|---|---|
| Product Model | LMDF-32X |
| Rated Voltage | 1000V DC |
| Rated Current | 32A (max) |
| Fuse Size | 10x38mm cylindrical fuse |
| Mounting Type | 35mm DIN Rail |
| Indicator | LED blown-fuse indicator (red light) |
| Terminal Type | Screw terminal |
| Operating Temperature | -40°C ~ +85°C |
| Housing Material | Flame-retardant engineering plastic (UL94 V-0) |
| Protection Class | IP20 (indoor use, suitable for combiner boxes) |
| Compliance | CE, IEC 60947-7-3 |
4. Working Principle
The LVMA LMDF-32X fuse holder safely contains and protects the PV fuse within the DC circuit:
- Normal Operation: Current flows through the holder and the intact fuse, with the LED remaining off.
- Overcurrent/Short-Circuit: When the fuse element melts due to overcurrent, the LED circuit activates, lighting up the indicator to signal a blown fuse.
- Isolation: The holder provides physical isolation of the fuse, preventing accidental contact with live parts and containing arc energy during fuse operation.
- Easy Replacement: The modular design allows for quick fuse replacement without removing the entire holder from the panel, minimizing system downtime.
5. Applications
- Solar Photovoltaic Systems: PV combiner boxes, string-level protection, and solar panel arrays.
- Renewable Energy Systems: Off-grid solar, battery energy storage systems (BESS), and wind turbine auxiliary circuits.
- DC Power Distribution: Telecommunication power supplies, industrial DC control panels, and electric vehicle charging infrastructure.
- Off-Grid Power Systems: Remote monitoring systems, telecom towers, and standalone solar installations.
6. Installation Instructions
- Mounting: Snap the LMDF-32X holder onto a standard 35mm DIN rail inside the combiner box or distribution panel.
- Wiring: Connect the positive PV string wire to the line terminal and the negative/load wire to the load terminal, ensuring all connections are tight.
- Fuse Installation: Insert a 10x38mm PV fuse into the holder, ensuring it is fully seated and the cap is securely closed.
- Verification: Energize the circuit and confirm the LED indicator remains off. If the LED lights up immediately, check the fuse for continuity.
- Maintenance: Periodically inspect the LED indicator. If lit, disconnect power before replacing the fuse with a matching 10x38mm PV-rated fuse.
7. Why Choose LVMA LMDF-32X PV Fuse Holder?
- Reliable Protection: Designed for the high DC voltages and currents of solar systems, preventing damage to expensive PV modules.
- Quick Troubleshooting: The LED indicator eliminates guesswork, reducing maintenance time and improving system uptime.
- Durable Construction: Flame-retardant housing and corrosion-resistant terminals ensure long-term performance in harsh environments.
- Cost-Effective: Offers premium features at a competitive price point, ideal for large-scale solar projects.
- Global Compliance: CE certification ensures compatibility with international safety standards for export markets.
8. Technical Documents & Support
- Download the full datasheet for detailed specifications, wiring diagrams, and installation instructions.
- Contact our engineering team for custom pole configurations or OEM/ODM solutions for large-scale projects.
- Request a quote with your project details for bulk pricing, lead times, and compliance certifications.
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