Emergency solar module DC disconnect switch | Rapid Shutdown switch | 1500V DC | 26A | IP66 | 12P | WiFi

Technical Specifications

Product type: emergency shutdown switch for solar power plants
Polarity: 12P
Maximum DC voltage: 1500V DC
Maximum DC voltage according to IEC/EN 60947-3: 1500V
Maximum DC current: 26A
Rated current: 26A
Number of strings: 5 strings
Operating AC voltage: 90VAC–260VAC
Rated AC voltage: 230VAC
Rated current: 30mA
Starting current: average 100mA
Operating activation current: max. 300mA
Protection class: Class II
Ingress protection rating: IP66
Operating temperature: -20°C to +50°C
Permissible storage temperature: -40°C to +85°C
Automatic shutdown temperature: +85°C
Mechanical operating cycles: 9700
Electrical operating cycles: 300
Standard: IEC / EN 60947-3
Certification: CE
Warranty: 5 years
Communication: WiFi
Installation purpose: for solar power plant DC circuits
Application: residential, commercial, industrial

Functions

Emergency DC circuit shutdown – automatically disconnects the voltage of solar modules in case of fault, fire, or emergency situation
Firefighter safety function – reduces dangerous high DC voltage so firefighters can work more safely during a fire
WiFi control and monitoring – allows remote control or monitoring of the device status
Operation in systems up to 1500V DC – suitable for modern high-voltage solar power systems
5-string management – allows protection of multiple solar module circuits with one device
Automatic protective shutdown during overheating – when +85°C is reached, the device disconnects automatically for additional safety
IP66 sealed enclosure – resistant to rain, dust, moisture, and outdoor conditions
Integration with inverter systems – can operate together with solar plant automation and inverter protections
Suitable for residential and commercial facilities – used in both home and industrial solar power plants
Durable construction – designed for long-term operation in demanding environmental conditions

Usage

In residential solar power plants: The device allows quick disconnection of DC voltage during an emergency, protects the inverter, reduces fire risk, and ensures safer maintenance of the electrical system. This is especially important for wooden houses, higher-power installations, and facilities with insurance safety requirements

In commercial and industrial facilities: Large solar power plants on warehouses, production buildings, farms, logistics centers, and commercial buildings

For electricians and solar power installers: The device allows designing safer PV systems, implementing modern safety requirements, improving operational safety, and simplifying maintenance work

For engineers and designers: Suitable for high-voltage DC systems, modern commercial PV plants, projects with additional fire safety requirements, and facilities requiring remote monitoring

Advantages

Suitable for systems up to 1500V DC
WiFi remote control
Firefighter safety function
High IP66 protection
Suitable for outdoor conditions
Automatic overheating shutdown
CE certification
Long service life
Suitable for residential and industrial facilities
Easy integration into PV systems

Disadvantages

Professional installation required
Not suitable for low-voltage simple DC systems
Stable connection required for WiFi functionality
Requires correct integration with the inverter system

What is a Rapid Shutdown switch used for?

It is designed for rapid disconnection of solar power plant DC circuits during an emergency situation, reducing dangerous high voltage.

Is this device necessary for a solar power plant?

In many modern projects and according to certain safety requirements, Rapid Shutdown solutions are becoming recommended or mandatory.

Can it be installed outdoors?

Yes, the IP66 protection rating allows installation in outdoor conditions.

Can it be controlled remotely?

Yes, the device has a WiFi function for remote monitoring and control.