Modular photovoltaic DC disconnect switch for solar power systems | 4P | 32A | 1500V DC | for isolation of inverter / battery / solar module circuits

Technical Specifications

Type: Photovoltaic DC load break / isolator switch
Polarity: 4P
Rated current: 32A
Rated voltage: 1500V DC
Purpose: Isolation / control / emergency disconnection of direct current circuits
Switch type: Load-Break Isolator Switch
Contact material: Copper + silver contact layer
Housing material: Durable technical plastic
Functional operation: Manual ON / OFF
Working application: Solar modules, inverters, battery systems, DC equipment protection
Storage temperature: -40°C ~ +85°C
Certificates: CCC, CB, TUV, ISO9001

Functions

Safe direct current circuit disconnection - allows complete isolation of the power supply from solar modules or other DC sources from the inverter, distribution box, or load.
Load disconnection under high voltage - special construction allows safe interruption of DC current even at voltages up to 1500V, where ordinary AC switches are not suitable.
Emergency system shutdown - can be used as a fast manual emergency disconnection point in case of fault, overload, or fire prevention situations.
Maintenance safety - when servicing the inverter, wires, fuses, or modules, the direct current side can be safely disconnected.
Long contact lifespan - silver-plated copper contacts reduce overheating, contact resistance, and ensure long service life even in intensive solar systems.
Resistance to environmental impact - wide temperature range allows use both in outdoor cabinets and technical rooms.

Usage

For household solar power plant owners: Perfectly suitable for residential solar systems where clear and safe manual DC disconnection is required for inverter maintenance or emergency situations.
For solar system installers: This is an essential professional component in every properly designed photovoltaic project that meets safety and эксплуатаtion requirements.
For electricians: Allows the formation of a fully safe DC distribution point in a technical cabinet or on a DIN system with clear manual isolation.
For engineers / designers: Suitable for designing higher power 1000V–1500V DC solar systems where certified load break solutions are required.
For industrial energy system maintenance personnel: Used not only in solar energy, but also in other high DC voltage control circuits where manual isolation is necessary.

Advantages

High 1500V DC operating voltage
32A rated current suitable for most strings
4-pole professional disconnection scheme
Specially adapted for photovoltaic systems
Certified according to TUV / CB / ISO9001
Silver-plated copper contacts
Temperature resistant from -40°C to +85°C
Suitable for emergency and maintenance disconnection
Long-life mechanical construction
Safe use in high voltage DC circuits

Disadvantages

Not intended for standard AC 230/400V household circuits
Requires correct pole connection according to PV diagram
Installation is recommended to be carried out by a qualified specialist
In large systems it is necessary to combine with DC fuses and surge protection

Where is this switch most commonly used?
This switch is most commonly used in solar power plants between solar modules and the inverter, in DC distribution boxes, and in battery energy storage systems.

Why is such a disconnect switch needed?
It is needed so that the direct current circuit can be safely disconnected during repair, maintenance, or emergency shutdown.

Is it suitable for a residential rooftop solar power plant?
Yes, it is perfectly suitable for residential solar systems where safe DC disconnection is necessary.

Is it suitable for larger commercial solar systems?
Yes, due to its 1500V DC operating voltage and 32A current, it is also suitable for larger photovoltaic projects.