Modular photovoltaic DC disconnect switch for solar power systems | with MC4 connectors | 600V DC | 4P | 40A | IP66 | for outdoor installation

Technical Specifications

Type: Photovoltaic DC disconnect switch in a waterproof enclosure
Rated operating voltage: 600V DC
Rated current: 40A
Application: Solar power plant DC circuits / photovoltaic systems
Housing: Waterproof outdoor mounting enclosure
Protection class: IP66
Resistance: Water, dust, moisture, UV resistant
Contact type: MC4 photovoltaic connectors
Certificates: TUV, CE, CCC, ISO9001
Material: Reinforced plastic + metal internal components
Housing color: Grey / silver
Mounting type: Surface / wall mounted
Place of use: Indoor and outdoor conditions

Functions

Safe DC circuit disconnection – allows quick disconnection of the solar module direct current line from the inverter or other equipment during maintenance and emergency shutdown.
Disconnection under load – the switch is designed to safely interrupt an active DC circuit, reducing the risk of electric arc formation.
IP66 waterproof protection – the housing protects internal contacts from rain, dust, moisture and dirt, making it suitable for long-term outdoor installation.
Fast MC4 cable connection – integrated MC4 connectors allow easy and reliable connection of standard solar module cables.
Protection during inverter servicing – provides the possibility to completely isolate the solar module voltage before inverter repair or maintenance works.
Resistance to outdoor environment – the construction is resistant to UV rays, temperature fluctuations, moisture and dusty environments.
Clearly visible ON/OFF control – the convenient external handle makes it easy to see the switch ON or OFF position.
Certified operational safety – TUV, CE, CCC and ISO9001 certificates confirm compliance with international quality and safety standards.

Usage

For household users / homeowners: This is an additional safety element in a home solar power system. In case of inverter failure or malfunction, solar panels can be quickly disconnected without urgently calling a technician.
For electricians / solar power installers: Fast MC4 connection helps reduce installation time on site. The waterproof box does not require an additional protective cabinet.
For engineers / designers: When designing safe PV DC circuits, this disconnect switch becomes an essential service and emergency isolation point, meeting the safety logic of professional systems.
For maintenance of industrial facilities: It can be used not only in PV systems, but also in other 600V DC power circuits where an external waterproof direct current disconnection is required.

Advantages

Specially designed for solar power plant DC circuits
High 600V DC operating voltage
Waterproof IP66 housing for outdoor conditions
Integrated MC4 connectors for quick connection
Resistant to water, dust and UV exposure
Certified by TUV, CE, CCC, ISO9001
Lightweight but durable housing
Convenient emergency and technical disconnection
Suitable for both residential and commercial installations

Disadvantages

Not intended for alternating current AC networks
Correct polarity connection is required during installation
For systems above 600V, a higher voltage model is required

Is this switch suitable for all solar power systems?
It is suitable for most solar power DC circuits where the operating voltage does not exceed 600V DC and the current does not exceed 40A.

Can it be installed outdoors?
Yes, the IP66 protection class ensures resistance against rain, dust and moisture, therefore the switch is intended for outdoor use.

Why are MC4 connectors needed?
MC4 connectors allow fast and safe connection of standard solar module cables without additional adapters.

Is this switch necessary for inverter maintenance?
Yes, it allows safe disconnection of the solar module voltage before carrying out inverter repair or servicing work.