Modular photovoltaic DC isolation switch for solar power systems | 4P | 32A | DIN | DC load disconnection

Technical Specifications

Product type: photovoltaic DC load break isolator switch
Polarity: 4P
Rated current: 32A
Operating frequency: 50/60Hz
Purpose: DC circuit isolation and load disconnection
Application areas: solar power systems, industrial DC systems, energy storage equipment
Contact type: SILVER CONTACT silver-plated contacts
Housing material: ABS plastic
Internal conductors / contacts: copper
Control purpose: system control / emergency shutdown
Operating class: industrial
Mounting: on DIN rail
Storage temperature: -40℃ to +85℃
Certificates: CCC, CB, TUV, ISO9001
Construction type: high-load Load-Break Switch
Technology: patented high-efficiency switching mechanism

Functions

Safe disconnection of solar module DC circuit - allows quick interruption of direct current flow between solar modules and the inverter or between batteries and the load when maintenance or emergency shutdown is required.
Load disconnection under operating conditions - designed not only for circuit isolation but also for load interruption while the system is running, significantly increasing operational safety.
Durability of silver contacts - silver-plated contacts reduce sparking, contact burning, and overheating, therefore the switch withstands more switching cycles and lasts longer even under higher DC loads.
Resistance to demanding environmental conditions - the switch can be used in systems where temperature fluctuations are very high, from cold storage conditions to overheated solar inverter cabinets.
Industrial reliability - the construction of metallic copper contacts and reinforced ABS housing ensures reliable long-term operation.

Usage

For household user / homeowner: If a solar power plant or battery energy storage system is installed at home, this switch provides an additional level of safety. In case of failure or maintenance, the DC power supply can be disconnected quickly.
For solar power installers: When installing inverters, string box panels, or DC protections, a professional load break isolator is essential. This model is ideally suited as a main PV isolator switch.
For electrician: Used in DC control cabinets, autonomous power systems, UPS systems, or battery circuits where safe manual disconnection is required.
For engineer / designer: When designing DC protection units for solar plants or energy storage systems, such a certified switch is an important part of system safety.
For industrial maintenance specialist: Allows fast isolation of DC circuits during diagnostics, repair, or preventive maintenance.

Advantages

Specially adapted for photovoltaic DC systems
4-pole construction allows wider circuit control
32A industrial load class
Silver contacts ensure longer service life
High resistance to temperature changes
Reliable ABS + copper housing
TUV, CB, CCC, ISO9001 certificates
Suitable for both household and industrial installation
Safe load disconnection during operation
High-quality switching mechanism with long service life

Disadvantages

Designed for professional installation, therefore installation by a qualified specialist is recommended
No automatic protection function - performs only the role of manual disconnection
Must be selected correctly according to the specific DC voltage and load of the system
For larger commercial systems, higher current models may be required

What is this switch used for?

This switch is used for safe direct current disconnection in solar power plants, battery systems, and other DC circuits.

Is it suitable for solar modules?

Yes, it is specially adapted for photovoltaic systems and is used between solar modules and the inverter.

Can an operating system be disconnected?

Yes, this model is designed for load disconnection even when current is flowing in the circuit.

Is the switch suitable for outdoor use?

Yes, however it is recommended to install it in a protective hermetic enclosure.