TVSS (Transient Voltage Surge Suppressor) is a core member of the surge protector (SPD) family that deals specifically with transient overvoltages. The HM400(200)B3N is designed for three-phase power systems, setting a new standard in industry protection.
HM400B3N
The product design strictly follows top global safety norms, ensuring safety protection in high-demand scenarios such as industrial, energy, and communication fields according to international and domestic standards:
International Standard: IEC 61643 (International Standard for Surge Protection)
North American Safety: UL 1449 (US Safety Certification)
Chinese National Standard: GB/T 18802 (Chinese Surge Protector Standard)
Communication Norm: YD/T 5098 (Telecom Industry Lightning Protection Norm)
Strong Voltage Endurance: Maximum continuous operating voltage 385VAC (L-N) / 770VAC (L-L), easily coping with grid fluctuations.
Direct Lightning Defense: 25KA maximum impulse current (10/350μs), effectively resisting direct lightning energy.
Precise Clamping: ≤1.4kV residual voltage (L-N), firmly limiting overvoltage within the safe threshold of the equipment.
High Current Flow: Core advantage! The current capacity reaches up to 400KA (8/20μs), providing military-grade surge discharge capability.
Dual Insurance
Thermal cut-off protection + failure sound and light alarm, instant fault alarm, eliminating "silent failure", automatically cutting off the degraded circuit, eliminating leakage and fire hazards.
Visual Status
The panel integrates three-color indicator lights (power-green / protection-yellow / failure-red), making operating status clear at a glance.
Sturdy and Durable
Copper-plated aluminum alloy shell, IP54 protection level (dustproof and waterproof), suitable for extreme environments from -40℃ to +85℃.
Easy Maintenance
Modular design, no need for regular internal component checks, just observe the panel indicator lights, greatly reducing maintenance costs and complexity.
Crucial projects such as domestic banking data centers, securities data centers, and civil aviation craft installations all require the highest level of protection according to design standards, using TVSS. The HM series product line comprehensively covers various levels of lightning protection needs:
Level 1 Protection: 400KA (8/20μs)
Level 2 Protection: 200KA (8/20μs)
Level 3 Protection: 100KA (8/20μs)
HM100B3N
Precautions for Installing the External Lightning Protection DeviceNovember 9, 20211. Installation of down-conductor and flashover conductor of external lightning protection deviceDown-conductor and lightning conductor should be in the correct position, and the laying should be smoo...viewWhat is the Difference Between a Class 1 Lightning Surge Protector and a Class 2?November 9, 2021Since the energy of lightning strikes is very huge, it is necessary to gradually discharge the energy of lightning strikes to the ground through a hierarchical discharge method. The first-level lightn...viewTechnical terminology in IEC61643 standards-2December 8, 20212.1.20 Reference Voltage UrefIn the area where the volt-ampere characteristics of the metal oxide resistor will transition from the weak electric field area to the strong electric field area, a suitab...viewThe Difference Between Surge Protector and Lightning ArresterFebruary 17, 2023Lightning arresters and surge protective devices, as commonly used components in electrical equipment, have the function of preventing overvoltage, especially lightning overvoltage, but there are stil...viewSelection Principle of Surge Protector in Distribution BoxJune 20, 2022(1) The voltage protection level Up of SPD should always be less than the impulse withstand voltage Uc of the protected equipment, and greater than the maximum operating voltage Us of the power grid o...viewThe imortant technical characteristics of SPDSeptember 8, 2021Maximum continuous operating voltage UCThe maximum continuous operating voltage (old: rated voltage) is the maximum root mean square value (rms) of the allowable voltage applied to both ends of the su...view
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