Low Voltage AC Surge Protection Device Product overview
In the past, our buildings were often struck by lightning, causing the house to trip, causing many adverse effects on people's daily lives and work.
In order to solve this problem, people began to try to install lightning rods on the roof. However, lightning rods used in buildings can only prevent the house from being harmed by lightning. Some valuable electronic products, such as computers, TVs, air conditioners, etc., are still easily damaged during lightning strikes, so people have developed special-purpose lightning rods for use in buildings. Lightning arresters and surge protectors for electronic products.
The name of Low Voltage Surge Protector sounds complicated, but in fact we can literally understand why it is sacred. Surge, which means breakthrough, refers to an instant short circuit of electronic products. To protect electronic products from short circuit, it is called a surge protector. To put it bluntly, a surge protector is a lightning protection device installed on some large machines or valuable electronic products. When the protected electrical product absorbs a huge current in an instant, the surge protector can protect the device within a very short time. Conduct shunt to avoid surge damage to electronic equipment.
As a single voltage limiting device. Products in line with GB18802.1,GB50057 and lEC/EN61643-11 standards.Each front pole of SPD surge protector must be connected in series withXZSCBseries surge backup protector or fuse.
Low Voltage AC Surge Protection Device Main technical parameters
| Specifications | XZ2-SPDi15 | XZ2-SPDi25 | XZ2-SPDi50 | |||
| limp Lightning impulse current |
15kA | 25kA | 50kA | |||
| In(8/20 μs) Nominal discharge current |
50kA | 50kA | 50kA | |||
| 1peak(10/350 μs) The peak current |
15kA | 25kA | 50kA | |||
| Uc(VAC) Maximum Continuous Operating Voltage |
275 | 385 | 275 | 385 | 275 | 385 |
| Uc(kV) Voltage protection level |
1.5 | 2 | 1.8 | 2.2 | 2.3 | 2.5 |
| (ns)Response time | <100 | |||||
| Protection grade | IP20 | |||||
| The shell material | PBT/PA66 | |||||
| Test classification | Class l | |||||
| Ambient limit femperature TU | -40℃~80℃ | |||||
| Front over current protection device | XZSCB-i15 | XZSCB-i25 | XZSCB-i50 | |||
| Protected mode | L/N-PE | |||||
| Type of installation | 35mm standard guide rail is used for installation | |||||
| (mm2) lnduced power line cross-sectional area |
16-35mm2/ Multicore flexible cable | |||||
| Note | Remote signal function can be added, other maximum continuous working voltage uC can be customized | |||||
IP20 Surge Protector Overall dimensions

XZ2-SPDi15/i25/i50 low voltage ac surge protection device IP20 surge protector is suitable for low-voltage AC power distribution 50/60Hz, 230/400V and below IT,TT, TN-C, TN-S, TN-C-S and other power supply systems can be connected in parallel on the power line for equal potential when lightning strikes. Mainly used to protect low-voltage customer electrical installations from surges caused by atmospheric discharge (e.g. to indirect lightning) or other operating instantaneous overvoltages.
The IP20 Surge Protector(SPD) has a built-in disconnector. When the SPD fails due to overheating or breakdown, the disconnector can automatically disconnect it from the power grid and give an indication signal.
The protection device shall be installed at the end of the upline (immediately connected to the downline of the pull-in wire) required to protect the customer's equipment, connecting the outer lead (L) or neutral lead (N) to the grounding device of the customer's equipment. It is installed at the junction of LPZOB area and LPZ1 area, with 35mm standard guide rail and 16-35mm copper multi-wire connection.
Usually installed in the line of low voltage main distribution cabinet, used for primary power equipment protection, often used in vulnerable to lightning outdoor power distribution cabinets, power distribution cabinets and indoor irfpa have to qualify the roof of the power distribution equipment, suitable for civil construction,electrical, communications, road traffic, such as the petrochemical industry of power equipment protection.
Keywords:AC Surge Protection Device,Low Voltage Surge Protector,IP20 Surge Protector
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