EY30A EY50A MEY30A MEY50A series
Nichiyu Electric Manufacturing Co., Ltd. New-FM Leakage Circuit Breaker EY30A EY50A MEY30A MEY50A Series
No characteristic variation due to ambient temperature changes! A complete electromagnetic leakage circuit breaker (30AF, 50AF) equipped for general circuits (EY) and motor protection (MEY).
The "New-FM Series (EY30A / EY50A / MEY30A / MEY50A)" from Nichiko Electric Manufacturing is a fully electromagnetic earth leakage circuit breaker (ELCB) that does not use bimetal (thermal) for overcurrent detection and disconnection mechanisms, instead adopting an oil dashpot method. In addition to overload and short-circuit protection, it prevents electric shock accidents and leakage fires through rapid disconnection during ground faults (leakage). 【Ideal for the following challenges and applications】 - When there is a significant rise in temperature within control panels or distribution boards, and you want to prevent malfunctions (unnecessary trips) of thermal leakage breakers. - When you want to provide leakage protection while preventing unnecessary trips caused by the starting current of induction motors (pumps, fans, conveyors, etc.). - For electric shock protection and leakage fire prevention in branch circuits of factory equipment, machine tools, power panels, and outdoor panels. Stable overcurrent protection characteristics that are not affected by ambient temperature. Immediate re-energization after a trip is possible. Unlike thermal types, there is no need to wait for the bimetal to cool down, allowing for quick re-energization and recovery after the cause of the overload has been removed.
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basic information
- Series Name: New-FM Series - Frame Size: 30AF (EY30A / MEY30A), 50AF (EY50A / MEY50A) - Operating Method: Fully Electromagnetic (Oil Brake Method) + Electronic Leakage Detection - Model (General Circuit Use): EY32A (30AF・2-Pole), EY33A (30AF・3-Pole), EY52A (50AF・2-Pole), EY53A (50AF・3-Pole) - Model (Motor Protection Use): MEY33A (30AF・3-Pole), MEY53A (50AF・3-Pole) - Rated Current (In): 3A / 5A / 10A / 15A / 20A / 30A (30AF), 30A / 40A / 50A (50AF) (varies by model) - Rated Sensitivity Current: 15mA / 30mA / 100mA / 200mA, etc. (varies by specifications) - Rated Operating Voltage (Ue): AC100V / AC200V / AC100-200V Dual Use, etc. - Connection Method: Surface Type (for Crimp Terminals and Bar Terminals), Rear Type, Embedded Type, etc. - Compliance Standards: JIS C 8201-2-2, etc.
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Applications/Examples of results
General circuit use (EY) and motor protection use (MEY) comprehensive lineup - EY30A (EY32A / EY33A): 30A frame for general lighting and power circuits (2-pole and 3-pole) - EY50A (EY52A / EY53A): 50A frame for general lighting and power circuits (2-pole and 3-pole) - MEY30A (MEY33A): 30A frame for motor protection with time-delay characteristics (3-pole) - MEY50A (MEY53A): 50A frame for motor protection with time-delay characteristics (3-pole) High safety and extensive options Equipped with a test button for leakage operation testing and a leakage display function, making maintenance and inspection easy. Additionally, it supports various auxiliary devices such as auxiliary switches (AX), alarm switches (AL), voltage isolation devices (SHT), and under-voltage isolation devices (UVT), allowing for flexible integration into remote monitoring and control systems. *For detailed operating characteristic curves, rated sensitivity currents, dimensional drawings, and other technical materials, please download and view the catalog PDF.
Detailed information
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Nisshō Electric Manufacturing's complete electromagnetic circuit breaker New-FM leakage circuit breaker EY30A (EY32A EY33A) EY50A (EY52A EY53A) MEY30A (MEY33A) MEY50A (MEY53A)
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Nihon Kōsokudō's complete electromagnetic circuit breaker New-FM leakage circuit breaker EY30A (EY32A EY33A) EY50A (EY52A EY53A) MEY30A (MEY33A) MEY50A (MEY53A)
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Nihon Kōsokudō's complete electromagnetic circuit breaker New-FM leakage circuit breaker EY30A (EY32A EY33A) EY50A (EY52A EY53A) MEY30A (MEY33A) MEY50A (MEY53A)
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Nihon Kōsokudō's complete electromagnetic circuit breaker New-FM leakage circuit breaker EY30A (EY32A EY33A) EY50A (EY52A EY53A) MEY30A (MEY33A) MEY50A (MEY53A)
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Nihon Kōsokudō's complete electromagnetic circuit breaker New-FM leakage circuit breaker EY30A (EY32A EY33A) EY50A (EY52A EY53A) MEY30A (MEY33A) MEY50A (MEY53A)
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Nihon Kōsokudō's complete electromagnetic circuit breaker New-FM leakage circuit breaker EY30A (EY32A EY33A) EY50A (EY52A EY53A) MEY30A (MEY33A) MEY50A (MEY53A)
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Nihon Kōsokudō's complete electromagnetic circuit breaker New-FM leakage circuit breaker EY30A (EY32A EY33A) EY50A (EY52A EY53A) MEY30A (MEY33A) MEY50A (MEY53A)
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Nihon Kōsokudō's complete electromagnetic circuit breaker New-FM leakage circuit breaker EY30A (EY32A EY33A) EY50A (EY52A EY53A) MEY30A (MEY33A) MEY50A (MEY53A)
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Nihon Kōsokudō's complete electromagnetic circuit breaker New-FM leakage circuit breaker EY30A (EY32A EY33A) EY50A (EY52A EY53A) MEY30A (MEY33A) MEY50A (MEY53A)
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Company information
Nikko Electric's new base, Satellite Akiba (Tokyo, Akihabara), opened in February 2024. We aim to create a facility that connects not only sales but also factory technology and the web, allowing us to propose the most optimal transformers in real-time! If you have any issues regarding transformers, coils, or reactors, please feel free to consult with Nikko Electric. We will propose the best transformers through discussions with our customers.
