EXRPV DC Fuse-combination Unit 1000V 32A–80A
Fuse-combination units (i.e. EXRPV series) have been specially engineered for use in photovoltaic applications. They can handle a maximum DC voltage of 1000VDC and rated current of 80A. They offer reliable overload and short-circuit protection at a breaking capacity of 50kA, making them ideal for use in PV combiner boxes, inverters, controllers, and DC distribution cabinets.
Standards: IEC60269, GB13539
Rated Voltage: 1000V DC
Rated Current: 32A / 50A / 80A
Breaking Capacity: 33kA / 50kA
Fuse Sizes: φ10×38mm / φ14×51mm / φ22×58mm
Mounting: 35mm DIN rail
Product Information
High-Performance Photovoltaic DC Fuse-combination Unit: EXRPV Series Solar DC Protection up to 1000V
EXRPV series fuse-combination units are specifically designed to offer reliable protection against overloads and short-circuits to DC Protection Systems of Photovoltaics (Photo-voltaic).EXRPV, light bulb, can be defined as a type of fuse protection designed to provide an interrupting rating to solar PV systems in order to protect components such as; inverters, combiners and DC distribution assets, in the event of an overload or short-circuit.
It supports a maximum DC voltage of 1000 Volts and has the capability to support multiple rating ranges up to 80 Amps of current, making it appropriate for use in residential, commercial, and utility-scale solar PV systems.
The design of the fuse-link structure allows for a safe model design that consistently stops fault currents and protects against electrical overload or short circuits that cause damage to PV combiner boxes, inverters, controllers and DC distribution systems.
The importance of DC fuse protection in solar systems is based on the fact that fault currents can exist indefinitely because DC does not cross zero naturally, and as such can cause extensive overheating of the conductors without proper interruption of the fault current.
Technical Data
| Model | Fuse Size | Rated Voltage | Rated Current | Breaking Capacity |
|---|---|---|---|---|
| EXRPV-32 | φ10×38mm | 1000V DC | 1–32A | 33kA |
| EXRPV-63 | φ14×51mm | 1000V DC | 8–50A | 50kA |
| EXRPV-125 | φ22×58mm | 1000V DC | 8–80A | 50kA |
Fuse Combination Units of the EXRPV Type Are Frequently Utilised in Photovoltaic Combiner Boxes; Inverter DC Input Protection; and Solar DC Distribution Cabinets. They Provide a Safe Interruption of Fault Current and Create Greater Reliability Within High Load PV Systems.
EXRPV is generally installed as a critical protection component within the PV combiner box, inverter DC input terminals, and solar distribution cabinets.
All models are intended for use with the standard 35mm DIN mounting brackets and can be easily installed and quickly integrated into today’s PV electrical equipment.
Application Scope of Photovoltaic Fuse Protection
A photovoltaic system’s direct current circuits must have dependable overcurrent protection because there is always a continuous flow of current in these circuits and never a natural zero-crossing, Extrapv fuse-combination units provide the instantaneous interruption of fault current to protect photovoltic systems against overload or short-circuit failures of system components.
How does a PV fuse function? When there is a fault current, the fuse melts very quickly (i.e., within milliseconds) and opens the circuit, thus protecting downstream electrical equipment from damage.
Widely used in power plants that produce electric power using the sun’s heat, solar panels mounted on roofs, distributed energy storage systems, and community-based electric energy storage (when the demand for electric power exceeds local supply).
Protection Principle
The fuse melts to break the circuit when a fault occurs, thus preventing downstream equipment damages. It also allows for safe isolation of the faulty PV strings and protects inverters and DC distribution.
This item meets both the IEC60269 and GB13539 standards, enabling photovoltatic applications to have great reliability even in tough environmental circumstances.
Which standards do EXRPV comply with? It completely complies with IEC60269 and GB13539 worldwide fuse protection requirements for PV DC systems.
Installation Guidelines
The EXRVPs have been designed to be mounted onto standard 35mm DIN rails and will fit all PV Combiner Box Designs. The correct selection of fuse rating is important for coordination between the PV String current and the system voltage.
Fuse rating incorrect consequences. An oversized fuse will result in a reduced effectiveness of protection from an electrical system failure, whereas undersize fuses may contribute to unnecessary digital interruption or loss of electrical energy.
Following the manufacturer wiring diagram will help ensure that installation is done safely and according to local electrical code requirements.
Request a Quotation for EXRPV Fuse-combination Units
1000V DC photovoltaic fuse protection solution with 33kA–50kA breaking capacity. Suitable for PV combiner boxes, inverter DC protection, and solar distribution systems.
IEC60269 Certified • GB13539 Compliant • OEM/ODM Available
OEM/ODM Manufacturer Capability
EXRPV Series – Reliable PV Fuse Protection for Global Solar Systems
The EXRPV fuse-combination series is designed for long-term photovoltaic protection applications requiring high reliability and stable electrical performance.
What makes EXRPV suitable for OEM supply? It supports standardized fuse sizes, modular structure, and international certifications, making it easy to integrate into combiner box manufacturing and PV system design.
With multiple fuse size options and current ranges, it supports flexible system integration for different PV architectures. The modular design ensures easy maintenance and replacement without system redesign.
It is widely used by solar EPC contractors, combiner box manufacturers, and inverter system integrators requiring certified DC protection components.
How to Select EXRPV Fuse-combination Units
Key selection criteria for photovoltaic DC fuse protection systems.
1. Voltage Selection
Ensure rated voltage matches PV string Voc under worst-case conditions (up to 1000V DC).
2. Current Selection
Select fuse rating based on PV string current (1A–80A range available).
3. Breaking Capacity
Choose appropriate model based on system fault current level (33kA–50kA).
4. Installation Method
Install on standard 35mm DIN rail inside combiner boxes or DC cabinets.
Frequently Asked Questions
What is EXRPV used for?
It is used for overcurrent and short-circuit protection in photovoltaic DC systems.
What voltage does EXRPV support?
All models support up to 1000V DC photovoltaic systems.
What breaking capacity is available?
Depending on model, breaking capacity ranges from 33kA to 50kA.
Where is EXRPV installed?
It is installed in PV combiner boxes, inverter DC inputs, and DC distribution systems.
