Modular protective DC disconnect switch for solar power systems | 4P | 32A | 1000VDC | IP66 | hermetic sealed | for outdoor installation

Technical Specifications

Type: DC isolating disconnect switch
Polarity: 4P
Rated current: 32A
Rated operating voltage: 1000V DC
Frequency: 50Hz
Application: Solar power plants, DC power supply systems, industrial DC networks
Protection class: IP66
Housing material: Reinforced ABS plastic
Mounting type: Surface / wall mounted
Installation location: Indoor and outdoor use
Country of origin: China
Environmental resistance: Dust, rain, moisture, UV exposure

Functions

Safe disconnection of solar modules from the inverter - allows quick disconnection of the solar panel DC circuit during inverter maintenance, system inspection, or emergency shutdown.
High-voltage DC circuit isolation - designed to operate with up to 1000V direct current, making it suitable for most modern photovoltaic systems.
Reliable operation in outdoor conditions - IP66 protection ensures that the switch can be installed on external walls, near inverters, on structures, or inside technical cabinets.
4-pole full circuit disconnection - several circuits or + and - lines are isolated in one action, ensuring complete system safety.
Mechanical manual control - clear ON/OFF switching allows the operator to instantly see the circuit status.

Usage

For household users / residential solar power plant owners: If you have a private solar power system, this switch provides additional safety in emergency situations or during system maintenance. In case of inverter failure or preventive servicing, the DC circuit can be isolated without additional complicated actions.
For solar installers / electricians: This is an essential professional component according to safe PV installation practice. It allows installation of a clear external emergency DC disconnect point, often required by maintenance and operational standards.
For engineers / designers: Suitable for use when designing solar module string circuits up to 1000VDC, energy storage units, and protective DC sections. The 4-pole construction allows more flexible design of multi-line disconnection.
For industrial automation specialists: Used as a manual DC isolator in control cabinets, UPS systems, backup DC sources, and specialized technological lines.

Advantages

High 1000VDC operating voltage
32A rated current suitable for most PV systems
4-pole full circuit disconnection
IP66 resistance to rain, dust, and moisture
Strong UV-resistant ABS housing
Suitable for indoor and outdoor installation
Simple mechanical ON/OFF control
Safe maintenance and emergency disconnect solution
Widely applicable not only in solar systems

Disadvantages

No integrated overcurrent protection - performs disconnect function only
Manual operation, therefore does not work automatically when load disappears
Requires professional correct DC pole wiring
Not suitable for AC alternating current circuits as a main switch

Is this switch suitable for a solar power system?

Yes, this model is specially adapted for safe disconnection of solar module DC circuits from the inverter or other equipment.

Can it be installed outdoors?

Yes, due to the IP66 protection class, the switch is resistant to rain, dust, and moisture, making it perfectly suitable for outdoor installation.

Why are 4 poles needed?

The 4-pole construction allows safe simultaneous disconnection of several DC lines or complete isolation of the system’s positive and negative circuits.

Is it suitable for battery systems?

Yes, the switch can also be used in various DC battery or автономous power supply systems.