NY30A Series / MNY30AM Series
Because it's the fully electromagnetic breaker New-FM from Nichi-Ko Electric Works, it is 【not affected by ambient temperature!】【immediate re-energization is possible!】
Common strengths of New-FM (completely electromagnetic) Both series are completely electromagnetic with an oil dashpot type that does not use bimetal. Not affected by ambient temperature: Even in environments where the control panel is sealed and high-temperature (over 40°C to 50°C), there is no concern about the rated current value shifting and causing erroneous trips. Immediate re-engagement is possible: After tripping due to overcurrent, you can immediately turn the lever ON after removing the cause without waiting for the bimetal to cool down.
basic information
New-FM Wiring Circuit Breaker NY30A Series (NY32A NY33A) MNY30A Series (MNY32A MNY33A) The number at the end of the model number indicates the number of poles, with "2" representing 2 poles (2P) and "3" representing 3 poles (3P). Additionally, the "M" at the beginning of the model indicates that it is suitable for motor protection (motor breaker characteristics).
Price range
Delivery Time
Model number/Brand name
Nichiko Electric Manufacturing Co., Ltd. Complete Electromagnetic Circuit Breaker New-FM
Applications/Examples of results
Applications suitable for the NY30A series (NY32A / NY33A) It is ideal for circuits aimed at protecting general wiring, resistive loads, and electronic loads. Power distribution circuits for control panels and operation panels Primary side protection for industrial machinery and FA equipment power within panels, as well as switching power supplies for PLCs and sensors. Electric heating devices and heater circuits Protection for steady loads such as heater loads with low inrush current during startup. General lighting and measurement circuits Branch wiring for small to medium capacity (up to 30A) such as panel lighting and power for measuring instruments. Applications suitable for the MNY30A series (MNY32A / MNY33A) Designed to prevent unnecessary trips caused by large inrush currents (5 to 8 times the rated current) that occur during motor startup. Protection for small three-phase induction motors For circuits of motors such as pumps, blowers (fans), conveyors, and machine tools. In circuits combined with electromagnetic contactors (magnetic switches + thermal relays), it cuts off short circuits and large overcurrents while coordinating with the thermal relay. Branching for equipment with high inrush Immediate protection for equipment with heavy startup loads, such as small air compressors and refrigeration units.
Detailed information
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Frame size (AF)・Number of poles (2-pole, 3-pole)・Basic model name (NY32A NY33A MNY32A MNY33A) Rated insulation voltage・Rated operating voltage・Standard rated current (A)・Instantaneous trip type (IT)・Instantaneous trip current value (A)・Rated breaking capacity (kA)・Surface shape product weight (kg)・Remarks
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New-FM Wiring Circuit Breaker NY30A (30AF) MNY30A (50AF) Operating Characteristic Curve
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New-FM Wiring Circuit Breaker NY30A (30AF) MNY30A (50AF) Dimension Diagram, Surface Type, Back Type, Embedded Type, Hole Dimensions
Line up（2）
| Model number | overview |
|---|---|
| NY30A series (NY32A NY33A) | |
| MNY30A series (MNY32A MNY33A) |
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