CHENZHU SPD (surge protection device) lightning surge protection circuit device has a fast and powerful surge current leakage capacity. In the lightning surge interference, the lightning proof surge protector for electrical panel ensures the safety of the industrial automation control system a variety of field equipment and control equipment.
The SPD 3 phase industrial power strip surge protector created by Chenzhu, one of the most professional surge protection equipment manufacturers, has integrated lightning-proof technology, intrinsic safety explosion-proof technology, and functional automation safety technology. As a result, the SPD electrical surge protection device by CHENZHU, a reliable SPD enterprise, is the first 20kA anti-surge capacity of the leading products in China. The SPD panel box surge protector supplied by CHENZHU is also an important part of the safety automation system like the intrinsic isolated barrier, signal conditioner, safety relay, etc.
From drawing design to batch delivery, China surge protector manufacturer one-stop service:
Prototype solution provided in 72 hours
Quick proofing in 20-30 days
Lifetime technical support to ensure that SPD products are perfectly compatible with your equipment
As a professional China surge protector manufacturer, we have an IEC 61643 standard certification laboratory, and the core team has 15+ years of experience in lightning protection design. All SPD products have passed 8/20μs lightning strike test and 1000 cycles of aging verification to ensure the stability of anti-surge device in harsh industrial environments.
For the needs of surge protection device manufacturers in different scenarios, we provide:
Voltage customization (48V DC ~ 690V AC)
Interface adaptation (guide rail/modular/distribution box pre-installed)
Intelligent upgrade (SPD products with remote signal alarm function)
Whether it's type 1, 4 pole or type 2, multi pole SPD surge protection device, both type 1 and type 2 surge arresters prevent devices from being damaged by a surge (transient overvoltage) by discharging surge current to the ground. The type 1 & type 2 surge protection unit will be generated. When a lightning strike occurs, the high-power devices are switched on or off, electrostatic charges are discharged. These happen every day.
Whether to install SPD or not is generally determined by two aspects.
First, it's the probability of equipment being invaded by surges, such as local thunderstorm days, system environment, equipment location, etc. Second, it's the importance of the equipment, such as the value of the equipment itself, the safety requirements of the system, the importance of the equipment in the system control.
In a way, it is necessary to buy SPD for safety. CHENZHU, as a professional SPD company (SPD factory/ SPD manufacturer/ SPD supplier), has high-quality SPD for sale such as our AC power surge protection device. If you want to know the SPD surge protection device price, please contact us.
According to the level of lightning risk, space is divided into different lightning protection zones (LPZ).
LPZ0A means the area without any protection and is threatened by direct lightning strikes and all lightning electromagnetic pulses.
LPZ0B means that there is no direct lightning risk in this area, but it is threatened by all lightning electromagnetic pulses.
LPZ1 means that there is no risk of direct lightning strikes in this area, and the internal lightning electromagnetic pulse has been attenuated after being shielded.
LPZ2~n indicates that there is no risk of a direct lightning strike in this area, and the internal lightning electromagnetic pulse continues to attenuate after being shielded again.
SPD is generally installed at the junction of different lightning protection zones, and the corresponding SPD can be selected according to the lightning protection zone where the SPD is located. SPD puts the high-energy surge discharge into the ground and limits the overvoltage entering the system and equipment to a safe level, thereby playing an effective protective role.
①T1 Power SPD ②T2 Power SPD ③T2 Power SPD ④IS SPD
⑤Network SPD ⑥Network SPD ⑦ Screw Mounting SPD ④Signal SPD
SPD has a limited life. The performance of SPD internal electronic components, such as gas discharge tube, varistor, transient suppression diode, diode, etc., will be affected when it discharges surge current. If SPD discharges too many times of surge current, it will cause performance degradation. In addition, due to the influence of temperature and humidity, the performance of components will gradually degrade. According to IEC 61508-2 2010, 7.4.9.5, the useful lifetime lies within a range of 8 to 12 years. It can, however, be significantly less if elements are operated near their specification limits. For example, in outdoor high temperature and high humidity conditions, the expected lifetime of SPD is 3-5 years. If the surge protection system voltage is close to the maximum continuous working voltage of SPD, or overvoltage occurs frequently, the lifetime of SPD will be even shorter.
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