Waterproof photovoltaic DC isolation controller for solar panel

🔒 Total Reliability & Security for your Solar Installations

Designed to ensure safe and long-lasting isolation of photovoltaic circuits, this waterproof controller is the ideal accessory for all demanding solar installations, whether domestic or professional. Thanks to its CE/RoHS certification and IP66 protection rating , it is resistant to water, dust and handling errors.

---

✅ Technical characteristics:

• Built-in protection : Anti-misoperation (anti-wiring error)

• Housing material : high strength PC

• Wiring : Standard MC4 connectors

• Certification : CE / RoHS

• Protection rating : IP66 – Completely waterproof against dust and water jets

• Contact material : Pure silver for optimal conductivity

• Rated voltage : ≥440V DC

• Applications : Suitable for residential, commercial or off-grid systems

---

📐 Dimensions : (unit: mm)
Exact details to be indicated according to the model provided.

---

💡 Why adopt it?

• 🔌 Fast and secure connection with MC4

• 🌦️ Weather resistant

• ⚡ Compatible with all solar systems up to 1000V

• 🛠️ Simple installation, without specific tools

🛒 Ready to secure your installation?
See all compatible accessories

Comparison of the best solar disconnect switches for photovoltaic systems in 2025

With the diversification of photovoltaic installations, system safety and reliability remain top priorities. The photovoltaic DC insulation monitor, now waterproof, is emerging as an essential solution for the effective monitoring of solar networks. This technology offers versions adapted to the increasing requirements of high-voltage devices, capable of managing significant leakage capacitances. The device, incorporating a self-adaptive coded signal with AMPplus filtering, ensures reliable insulation measurement in disturbed environments, particularly with the presence of power converters. In addition, the DC disconnect switch meets the strictest standards, with options ensuring robust protection against external aggressions and guaranteeing rapid and secure disconnection of direct current. In light of these advances, professionals benefit from a complete range of tools, documents and accessories facilitating the installation, maintenance and diagnostics of residential, commercial or on-board installations. The set meets the requirements of both standard and complex projects, offering optimized performance for homogeneous or hybrid systems connected to the grid or autonomous.

Waterproof photovoltaic DC isolation controller: versions, references and key features

Range of photovoltaic insulation controllers: references, configurations and accessories

The waterproof DC isolation monitor is distinguished by its multiple versions, adapted to the varied configurations of solar installations. The models cover a wide nominal voltage range, generally from 200 to 1100 VDC when combined with the AGH PV adapter plate. This range includes:

• Standard versions incorporating a digital display and configurable relays.

• Models combining a Modbus communication interface for integration into supervision systems.

• Additional accessories such as external sensors or visual and audible signaling modules.

The references offered by the manufacturers are calibrated for continuous use in outdoor environments , with a clear display of tolerance thresholds and the possibility of easy intervention via dedicated software. The robustness and ease of adaptation to various architectures justify their growing popularity on the market, particularly for high-power projects – the watt+ brand is among the leaders offering reliable and compliant solutions.

Catalogs, instructions and technical resources for optimal integration

Manufacturers provide a comprehensive set of essential technical documents, including:

• Catalogs detailing electrical and mechanical characteristics.

• Step-by-step installation manuals and setup guides.

• Technical brochures highlighting innovations and compatibilities.

This documentation facilitates the selection of the most suitable device, while ensuring perfect compliance with current standards and the specific constraints of installation sites. Access to standard electrical diagrams, parameter tables and maintenance recommendations accelerates the interventions of certified teams, minimizing errors and optimizing the lifespan of equipment.

Expert support, tutorials and CAD files for installers

In addition to written documents, qualified technical assistance supports users to:

• Provide support during product selection and commissioning.

• Provide video tutorials illustrating complex operations.

• Provide CAD files (2D/3D) facilitating design and integration into technical plans of installations.

This approach effectively supports installers in demanding projects, particularly when managing a hybrid network or one integrated with a solar home automation system. Reducing installation times and clarifying procedures increase team productivity and overall safety.

Compatibility with AGH PV adapter board: voltage extension up to 1100 VDC

The AGH PV adapter board is a key element for increasing the monitoring voltage range up to 1100 VDC . This accessory allows:

• Implementation on installations with increased capacity, such as large commercial photovoltaic systems.

• Compatibility with mixed AC/DC networks, including hybrid systems combining on-grid and off-grid.

• Maintaining measurement performance despite rising voltages, ensuring stability of insulation readings.

With this extension, users can confidently approach the monitoring of modern installations with high electrical density, especially in contexts where regulations impose reduced tolerance margins for safety.

Version	Nominal voltage range	Key Features	Compatibility
Standard	200-800 VDC	Digital display, adjustable thresholds	DC networks
With Modbus communication	200-800 VDC	System integration, extended settings	Mixed AC/DC networks
AGH PV Extension	200-1100 VDC	High voltage adaptation, mixed AC/DC network	Large PV fields

Advanced technologies for reliable insulation measurement on AC/DC solar networks

Self-adaptive coded signal with AMPplus filtering: stable measurement in the presence of disturbances

The technological heart of the controllers is based on the self-adaptive coded signal equipped with AMPplus filtering. This innovative process allows:

• Eliminate the influence of electromagnetic disturbances generated by power converters and inverters.

• Ensure constant and accurate measurement of insulation resistance even in highly electrically polluted environments.

• Dynamically adapt to network conditions, avoiding false alarms and untimely interruptions.

This advanced filtering is now an essential standard for ensuring the continuity and reliability of operations on modern photovoltaic installations. This technology is essential when AC, DC, and mixed networks coexist, allowing operators to have a clear view of the system's insulation quality.

Insulation control on AC, DC and mixed networks: maximum flexibility

The versatility of the measure is expressed by the ability to simultaneously manage different types of networks:

• AC for conventional grid connections and inverters.

• DC for solar modules and batteries.

• Mixed AC/DC , suitable for hybrid installations or complex systems with integrated storage.

This flexibility optimizes integration into multiple architectures, with permanent control adapted to the characteristics specific to each electrical environment.

Management of leakage capacities up to 2000 µF: adaptation to large solar installations

Leakage capacitances are a major issue, particularly for high-power photovoltaic fields. These controllers seamlessly manage capacitances up to 2000 µF , which allows them to:

• Ensure stable measurements on long cables and panels sensitive to stray currents.

• Limit the risks of erroneous or delayed triggering linked to reactive capacitance.

• Maintain active protection on large installations, where leakage capacity naturally increases with size.

An industrialist equipped with this technology can thus secure powers of several hundred kilowatts without compromising precision and safety.

Event timestamping: precise tracking of fluctuations and identification of faults

Besides simple detection, the integrated timestamp allows:

• Accurate archiving of insulation fall incidents.

• Correlation of events with system operating conditions.

• In-depth analysis facilitating rapid identification of faulty modules or sections.

Improved timeline tracking results in targeted intervention, optimizing maintenance costs and extending equipment lifespan. This feature is particularly valuable in sites where energy performance is a major issue.

Functionality	Description	Advantage
AMPplus Filtering	Self-adaptive signal against interference	Reliable measurement in disturbed environments
Control on mixed networks	Detection on AC, DC and AC/DC	Adaptation to hybrid installations
High leakage capacity management	Up to 2000 µF	Use on large solar fields
Timestamp	Chronological recording of defects	Accurate diagnosis and rapid interventions

Photovoltaic DC Disconnect Switch: Safety and Compliance for Solar Systems

Main functions and international standards (IEC60947-1 & 3)

The DC disconnect switch is an essential component for ensuring the safety of work on photovoltaic installations. Its role is twofold:

• Perform a quick and safe cut-off of direct current, essential during maintenance or emergency operations.

• Comply with international standard requirements, including IEC60947-1 and IEC60947-3, ensuring mechanism reliability and mechanical strength.

This device protects both residential and commercial systems, including on-board installations such as caravans or boats, where electrical safety is often subject to specific constraints.

Electrical safety: rapid cut-off and anti-intrusion locking devices

The best models are designed to offer:

• Instantaneous cutting of the circuit under high DC stress, limiting the propagation of electric arcs.

• Locking devices prevent any unauthorized or accidental action, increasing the safety of those involved.

• Clear visual feedback of switch position (ON/OFF) to facilitate quick visual diagnosis.

These features help reduce the risk of electrical accidents and ensure safe use in all conditions.

IP65/IP66 waterproof: resistant to water, dust, UV and outdoor weather

Mechanical robustness is reinforced by high waterproofing indices:

• IP65 and IP66 standards ensure complete protection against dust and powerful water jets.

• UV resistance guarantees the durability of the case even during prolonged exposure to solar radiation.

• Anti-corrosion materials suitable for marine environments or areas with high humidity.

These features make these switches suitable for outdoor installation without risk of failure due to environmental aggression.

Compact design and mounting options: easy installation in various environments

Modularity is another strong point with:

• Reduced dimensions allowing integration into panels or boxes with limited space.

• Different mounting methods: DIN rail, screw, or panel mounting, suitable for all configurations.

• Ergonomic design for easy access even in tight or poorly lit areas.

This aspect particularly facilitates use in mobile or embedded applications, where compactness is synonymous with efficiency and safety.

Characteristic	Description	Profit
DC fast cutoff	Instantaneous interruption under continuous load	Increased security during maintenance
Anti-intrusion lock	Mechanism to prevent unauthorized manipulation	Operator protection
IP65/IP66 rating	Protection against dust and water	Weather resistance
Multiple mounting	DIN rail, screw or panel	Easy and flexible installation

Features, Compatibility and Applications of Solar Panel Switches and Instruments

MC4 connectors, DIN rails and plug-and-play installation on any solar project

Photovoltaic switches and instruments are generally compatible with standard MC4 connectors, promoting:

• Fast, secure and waterproof connection of PV cables.

• Easy communication with complementary equipment via standardized interfaces.

• Simplified plug-and-play installation, minimizing errors and speeding up on-site assembly.

Furthermore, the devices are designed to be fixed on standard DIN rails or by direct fixing, multiplying the opportunities for integration in various environments, from residential electrical panels to industrial solar power plants.

Built-in protection: cut-off in case of overload, short circuit, surge and lightning

Security is enhanced by integrated systems capable of:

• Quickly detect overloads or short circuits and automatically shut off.

• Manage transient surges due to lightning or network failures.

• Protect sensitive equipment, extending its lifespan and limiting the risk of fire.

These functions prove essential in areas subject to extreme climatic conditions or high-intensity networks.

Variety of models: current up to 32A, voltage up to 1200VDC, viewing windows

A wide range allows you to choose the equipment according to specific needs:

• Nominal currents from 10A to 32A , suitable for most installations.

• Voltages up to 1200 VDC , meeting the requirements of high voltage architectures.

• Options with transparent window allowing visual verification of the circuit breaker status without disassembly.

This panel guarantees a perfect fit for systems ranging from residential to large photovoltaic power plants.

Advanced measurement and diagnostics: insulation, voltages, currents and IEC/EN62446 compliance

Complementary instruments ensure accurate monitoring in compliance with standards such as IEC/EN62446 :

• Measuring module insulation to detect faults before failure.

• Control of open circuit voltage and short circuit current to optimize performance.

• Use of accessories such as MC4 adapters, specialized cables and temperature probes, facilitating on-site diagnostics.

These tools are essential for the regular monitoring of installations, allowing rapid and effective intervention in the event of anomalies, while ensuring optimal performance and a prolonged lifespan of the panels.

Device type	Features	Applications
DC switches	Quick disconnect, locking, IP65/IP66	Residential, commercial, embedded systems
Measuring instruments	Insulation, voltage, current, diagnosis	Monitoring and maintenance of installations
Accessories	MC4 adapters, temperature probe, cables	Optimization of field diagnostics

FAQ

• What is the typical voltage range for a waterproof photovoltaic isolation controller?
  Standard ranges vary between 200 and 800 VDC, but with an AGH PV adapter board, this capacity can reach up to 1100 VDC, suitable for large installations.

• How does AMPplus filtering improve isolation measurement?
  AMPplus filtering uses a self-adaptive coded signal that eliminates electrical disturbances from converters and inverters, ensuring reliable and stable reading.

• What are the benefits of the IP66 rated disconnect switch?
  An IP66 seal guarantees total protection against dust and powerful water jets, ensuring optimal durability even in outdoor environments exposed to bad weather, UV rays and maritime humidity.

• Why is it important to manage leakage capacitances up to 2000 µF?
  Managing such capacities makes it possible to ensure accurate insulation measurement on large photovoltaic fields where cables and modules naturally create high parasitic capacitance.

• What are the advantages of viewing windows on DC switches?
  These windows allow visual control of the status (open/closed) without disassembly, thus facilitating maintenance and reducing intervention time.