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Company Introduction
Our LEEYEE Electric Co., Ltd. is a B2B manufacturer specializing in low-voltage electrical protection products, with over 15 years of OEM/ODM and export experience. Main products include SPDs, MCBs, isolator switches, solar connectors, and combiner boxes, all certified with CE, CB, ISO9001, and TUV.
We offers free customization for logo, design, parameters, and packaging, with an MOQ of 60 pieces. With stable quality and strong production capacity, Leeyee provides reliable electrical protection solutions to global customers.
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Product Introduction – Surge Protective Device (SPD)
The Surge Protective Device (SPD) is designed to protect electrical equipment from voltage surges caused by lightning or power fluctuations, effectively preventing damage and ensuring system safety.
Application Fields:
Widely used in residential and commercial buildings, industrial power systems, data centers, communication networks, and photovoltaic (solar) power systems.
Application Scenarios:
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Power distribution panels in residential, commercial, and industrial buildings
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Protection for electrical equipment such as lighting, air conditioning, and office appliances
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Data centers, factories, and public infrastructure where stable AC power is essential
Selection Guide:
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Voltage rating: Match the nominal voltage of the AC system (e.g., 230/400V).
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Protection level (Up): Choose lower values for sensitive equipment.
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Discharge current (Imax): Select according to the lightning protection level of the building (Class I/II/III).
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Installation position: At main distribution board or sub-distribution board.
Application Scenarios:
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Solar photovoltaic (PV) systems between solar panels and inverters
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DC power supply systems in telecom, charging stations, and control cabinets
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Battery energy storage systems
Selection Guide:
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Nominal DC voltage: Choose according to the PV system or DC circuit voltage (e.g., 600V, 1000V, 1500V).
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Polarity: Ensure correct polarity connection for positive and negative poles.
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Response time: Select fast-response models for sensitive electronic systems.
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Installation position: Near PV combiner box, inverter input/output, or DC distribution box.
Application Scenarios:
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Protection of data transmission systems (Ethernet, RS485, CCTV, etc.)
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Communication base stations, monitoring systems, and industrial automation control lines
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Security and smart home systems with low-voltage signal circuits
Selection Guide:
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Signal type: Match the SPD model to the line (e.g., RJ45, coaxial, RS485).
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Transmission rate: Ensure SPD supports the required data speed.
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Insertion loss: Choose low-loss SPD to maintain signal integrity.
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Installation position: Close to the protected equipment or signal entry point.
Why Choose LEEYEE SPDs:
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Complete series: AC, DC, and Signal surge protectors for all applications
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Certified by CE, CB, TUV, ISO9001
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OEM/ODM support with free design customization
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High reliability, fast responsee long lifespan
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MOQ: 60 pcs, ideal for distributors and system installers
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