Surge Protective Device SPD | China Manufacturer

Types of Surge Protective Device SPD

Intelligent Lightning Counter

The LMS1000-S100, based on Internet of Things (IoT) technology, is capable of online monitoring of the on-off status of surge protective devices (SPDs), the status of air switches, and the number of lightning strikes on SPDs.
Power Surge Protector

Power surge protectors are mainly used to protect low-voltage power supply and distribution systems, including AC power supply and distribution systems and DC power supply and distribution systems. AC power supply and distribution system lightning protectors are suitable for different power supply systems such as TT, TN and IT, including single-phase and three-phase. The working voltage covers 100-480VAC. The products range from T1 level to T2 level. T1 level Iimp can reach 50kA, T2 Level Imax can reach 160kA. DC power distribution systems mainly include 12/24/36/48VDC and 1500VDC, etc., which are widely used in photovoltaic power generation, communication base stations, automation control, security cameras and other system protection.
Signal Surge Protector

Signal lightning arresters are mainly used to protect communication ports of electrical equipment. The electrical equipment to be protected includes IP cameras, Wireless APs, Flow meters, PLCs, Industrial switches, etc. Common interfaces include RJ45, PoE power supply, RS485, and analog signal. The maximum transmission rate is up to 1000Mbps, Imax is up to 10kA, the maximum port is up to 24 ports, and the installation method supports rail-mounted, rack-mounted installation, etc.
RF Arrester

RF arresters are mainly used to protect the antenna interface of RF signals. Common equipment includes wireless APs and communication base stations. The frequency range of RF arresters covers 0-5.8G. Common interfaces include SMA, BNC, N, DIN, etc., and Imax can reach up to 60kA.

Why Surge Protective Devices Are Essential for Safeguarding Sensitive Equipment

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Surges occur with a high probability, accounting for over 30% of all types of accidents, surpassing fires and floods, resulting in significant direct economic losses.
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The indirect losses caused by the damage of surge conduction systems, such as data centers and control systems, are incalculable.
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The instantaneous high voltage of a surge can reach over 20kV. However, nowadays, electrical equipment is becoming increasingly intelligent, and its withstand voltage capacity is getting weaker and weaker. If it is less than 2kV, it is extremely prone to damage.

Advanced Surge Protective Device Technologies for Industrial and Commercial Use

1. The intelligent multi-level energy coordination technology, through the millisecond-level collaborative cooperation of three-level SPDS, gradually discharges the lightning current, ensuring that the residual voltage is always below the equipment's tolerance value and minimizing the damage to the equipment.

2. Multi-channel comprehensive protection technology provides corresponding lightning protection products for different types of cables such as power and signal cables and different interfaces respectively, leaving no blind spots for comprehensive protection.

3. Advanced surge monitoring technology, through the Internet of Things technology, monitors the frequency, magnitude of surges and the failure status of lightning arresters, improving operation and maintenance efficiency and reducing operation and maintenance costs.