Best Photovoltaic Fuses and Protection Components Factory, Products

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Best Photovoltaic Fuses and Protection Components Factory, Products

In PV systems consisting of arrays with N>4 module strings fault current can easily exceed the operating current. The current can reach a level that can cause overheating and damage of wire insulation.

To ensure the best possible protection for the system and people working on the equipment, each string of solar panels MUST be protected with one fuse on each "+" and "- " terminal.

These fuses will only isolate the fault string. So the rest of the PV system can continuously generate electricity.

When a fault occurs in the DC circuit of the PV system the absence of natural zero crossing makes the interruption of DC fault more difficult than the inte interruption of AC faults as only the fuse are will force the current to decrease to zero.

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Product Description

PV Cylindrical Fuse Links

Product Description:

A73 series gPV fuses are specially engineered and tested to provide best-in-class protection performance in protecting high power battery charging and managing systems of Electrical Vehicles and Hybrid Electrical Vehicles, up to 1000 Vdc in ratings from 1A to 30A.

Product Characteristics:

Reliable clearing of DC fault currents
High cycling performance
High breaking capacity to 30kA
Operation as low as 200% In overload protection
Full coverage of battery module current
QR code marks on each fuse for traceability
Special design with silver plated caps for high-power PV applications
BH 100-01, BH10-02 holders for DIN rail mounting

PV NH Type Fuses

Product Description:

AX6 series PV fuses are engineered and manufactured for use in combiner box and power storage protection, made from the highest quality materials and tested to the highest standards. With rated currents from 80A to 200A with a breaking capacity of 10kA.

Product Characteristics:

Reliable clearing of DC fault currents
High cycling performance and low watt losses
Ultra-compact size and power density
Breaking Capacity: 10 kA @ 1500 Vdc
Time constants: 1-3ms
Operation as low as 200% In overload protection
Full coverage of battery module current
QR code marks on each fuse for traceability

DC Surge Protection Devices

Product Description:

ASPD Series PV DC Surge Protection Devices are designed and manufactured complying to PV standard IEC 61643-31/EN 50539-11. It is widely used in PV DC combiner boxes, inverters, controllers and DC cabinets. With a rated voltage of 1000 VDC and a maximum discharge current of 40 kA, the integrated high-energy varistor provides highly effective protection against lightning and surge voltages.

Product Characteristics:

Type 2 DC power surge protector for PV systems
Integrated status indicator window
Pre-wired complete modular unit (consists of base unit and replaceable modules)
Maintenance-free, easily replaceable protection modules
High energy MOV's response time less than 25 Nano-seconds
Optional remote signal contacts for monitoring device
DIN Rail mounting TH35-7.5 / DIN35
Compatible with IEC 61643-31/EN 50539-11

Frequently Asked Questions

Q: What are gPV fuses used for in solar systems? A: gPV fuses are specifically designed to protect photovoltaic strings and arrays against DC overcurrent and fault currents, ensuring the safety of modules and wiring.

Q: Why is a high breaking capacity important for DC fuses? A: High breaking capacity (like 30kA) ensures the fuse can safely interrupt very high fault currents without rupturing or causing damage to the surrounding equipment.

Q: What is the purpose of the status indicator on an SPD? A: The indicator window provides a visual confirmation of the device's health. If the color changes, it signals that the protection module has reached its end of life and needs replacement.

Q: Are these surge protectors compatible with standard mounting? A: Yes, these DC Surge Protection Devices are designed for standard DIN Rail mounting (TH35-7.5 / DIN35), making them easy to integrate into existing DC cabinets.

Q: How do QR codes on fuses assist in maintenance? A: Each fuse features a unique QR code for full traceability, allowing technicians to verify technical specifications and manufacturing history quickly.

Q: Can the protection modules in the ASPD series be replaced separately? A: Yes, the modular design allows for the replacement of individual protection modules without needing to disconnect the entire base unit.