Class I and II compatible! SPD that protects electrical equipment power supplies from direct lightning and induced lightning surges.
The "MZS/MZCR" is an SPD (surge protective device) that protects the power supply section of electrical equipment from direct lightning strikes and induced lightning surges. It is compatible with Class I (10/350μs) and can handle direct lightning strikes up to 75kA, as well as overvoltage occurring between N-PE due to ground fault accidents (MZS-NPE400). It is ideal for protecting low-voltage power circuits such as distribution boards and sub-distribution boards, as well as power circuits for communication, broadcasting, electricity, and railways, and various control equipment power circuits. 【Features】 ■ Equipped with a deterioration display function ■ Built-in disconnection mechanism during deterioration ■ Alarm contact output ■ Continuing current interruption rated current of 50kA ■ Excellent response characteristics (under 3ns) For more details, please refer to the catalog or feel free to contact us.
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basic information
【Main Specifications】 ■Model: MZS-NPE400 / MZS-400AV / MZCR-400JK " " / MZCR-400JK " " ARR ■Application: Dedicated for N-PE / Class I, II compatible / Class II compatible / Class II compatible ■Test Class Classification (JIS C 5381-1): Class I, II / Class I, II / Class II / Class II ■Maximum Continuous Operating Voltage: 500V AC / 460V AC / 500V AC / 700V DC / 500V AC / 700V DC ■Impulse Current (10/350μs): 75kA / 25kA / - / - ■Leakage Current ・DC360V: 20μA or less / 20μA or less / - / - ・DC700V: - / - / 20μA or less / 20μA or less ■Maximum Discharge Current (8/20μs): - / - / 40kA / 40kA (each phase) 75kA (N-PE) *For more details, please refer to the catalog or feel free to contact us.
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Applications/Examples of results
【Applications】 ■Protection of low-voltage power circuits such as distribution boards and sub-distribution boards ■Protection of power circuits for communications, broadcasting, electricity, and railways ■Protection of power circuits for various control devices *For more details, please refer to the catalog or feel free to contact us.
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Company information
Since its establishment in 1930, Sanko Shiya has expanded its business in response to the needs of the times, ranging from the design and manufacturing of communication safety devices and lightning rods to the design and manufacturing of meteorological observation instruments and optical technology-related equipment. Additionally, we established Franklin Japan (in Sagamihara City), a lightning and meteorological information company, and provide high-precision lightning strike information services through a lightning observation network installed across Japan, solidifying our position as the world's only comprehensive company related to 'lightning,' from observation to protection.