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The Weidmüller PVC DC 21 20 10MPP It is an advanced security solution for large-scale commercial and industrial photovoltaic systems. This combine box stands out for integrating a Firefighter switch (Fireman switch) With remote circuit breaker, allowing the safe disconnection of panel chains at the entrance point to the building in case of emergency. With capacity to manage up 10 Followers MPP (With 2 entries and 2 outputs per each), it offers integral professional level protection. Includes an overvoltage guard SPD Type R & II for tensions up 1100 V, guaranteeing the integrity of the system against the rays and transitors. Its design with cable glandens ensures a lasting seal, while its function of automatic reconnection After the restoration of the electrical network, it guarantees operational continuity without manual intervention.
Weidmüller PV Next Fireman: Critical Security for Buildings
The model PVC DC 21 20 10MPP RD It belongs to the Weidmüller PV NEXT range, designed to meet the strictest safety regulations on roof facilities. Its main function is to mitigate electrical risks during emergency interventions, providing a physical disconnection of the direct current (CC).
Key advantages of the solution Fireman switch
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Automatic remote disconnection: In case of fire or emergency, when cutting the power supply of the building, the switch automatically disconnects photovoltaic strings, allowing firefighters to work without danger of high voltage discharges.
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Industrial capacity of 10 MPPT: Designed for large-scale installations, it allows to connect and independently up to 10 MPP channels, maintaining an impeccable wiring organization using cable gland.
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Class I + II-ray protection: It incorporates high-performance surge dischargers that protect expensive investors against direct rays and overvoltage impacts on the network.
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Operational Efficiency: Once the building feed is restored, the equipment reconnects the panel chains automatically, avoiding production losses for forgetting in the manual rearmed.
Featured technical characteristics
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Maximum system tension: 1100 V DC.
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Entry settings: 10 MPP (2 entries / 2 outputs per mpp).
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Surge protection: Class I / II (SPD type 1 + 2).
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Type of connection: Packaging (CG) for maximum environmental resistance.
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Disconnecting device: Integrated remote circuit breaker (RD).
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Certifications: It complies with European security standards for photovoltaic infrastructures.
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Product code: 3149710000.
Frequently Asked Questions (FAQ)
- Why is a fire breaker is mandatory in certain buildings? Because the cables that fall from the roof transport high voltage current current whenever there is sun. The switch allows you to "turn off" those cables from the outside of the building so that emergency teams can act safely.
- What happens if the light is cut for a momentary network failure? The switch will be activated for safety, but thanks to its intelligent design, it will be rearmed only as soon as the mains is operational, without having to climb the roof or manipulate the box.
- How many panels can I connect to this box? This model is extremely powerful, allowing to be managed up to 10 independent MPPT followers. Each follower admits 2 entries, which offers enormous flexibility for complex industrial installations.
- What maintenance does this equipment require? Being sealed by cable gland and have high-quality Weidmüller components, maintenance is minimal. It is recommended to visually verify the statement of the surge protector (SPD) indicators after thunderstorms.