日幸電機 Product Lineup

New-FM External Accessory Device Operation Prevention Device (Abbreviation: TB) New-FM External Accessory Device External Operation Mechanism (Abbreviation: GS) New-FM External Accessory Device External Operation Mechanism GS-232 GS-332 New-FM External Accessory Device Terminal Cover (Abbreviation: TNC) Selection List New-FM External Accessory Device Mechanical Interlock Device (Abbreviation: INT) New-FM External Accessory Device Connection Conductor (Abbreviation: SD) New-FM External Accessory Device Mechanical Interlock Device Dimension Change Table (Surface Type, Rear Type) New-FM External Accessory Device Mechanical Interlock Device Dimension Change Table (Embedded Type)

1. Applications suitable for DM30 (30AF) Small capacity power branching in control panels and operation panels Small current branching circuits for instrumentation equipment, PLC power supplies, DC power units, indicator lamp circuits, etc. Protection just before low ampere devices Even in circuits around 1A to 10A, which are less commonly provided by general MCCBs, it can be installed as a panel breaker with a sense similar to that of a circuit protector. Space-saving branching within panels Due to its compact shape, it is suitable for cases where space-saving is desired in panels with many branching circuits. 2. Applications suitable for DM50 (50AF) Power panels and power branching circuits Branching circuits for small three-phase induction motors (pumps, fans, compressors, etc.) and heater loads at 200V class. Main receiving section of distribution boards and medium capacity main line branching The main breaker of a small panel when DM30 is used as a branching circuit, or medium capacity feeder circuits of power distribution boards. Systems with slightly larger inrush current and short-circuit capacity Busbar direct connection circuits where the power capacity is large, and there is a risk that the rated interrupting capacity (kA) may be insufficient with 30AF.

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.

Nikko Electric Manufacturing's various circuit breakers are the only ones in Japan that are fully electromagnetic and are available in a series. Compared to bimetallic types, the fully electromagnetic type is more resilient in harsh environments. Given the recent expectations of use in severe conditions due to abnormal weather, the advantages of the fully electromagnetic type will be demonstrated. ★☆★☆Regarding inquiries from customers not registered with Ipros★☆★☆ For inquiries from those not registered with Ipros, please use the related link below: 【Nikko Electric Co., Ltd. Inquiry Form (Please contact us here if you are not registered with Ipros)】 ☆★☆★↓↓↓↓↓↓↓↓↓↓↓↓↓↓↓↓☆★↓↓↓↓↓↓↓↓☆★ ☆★☆★↓↓↓↓↓↓↓↓↓↓↓↓↓↓↓↓☆★↓↓↓↓↓↓↓↓☆★ ☆★☆★↓↓↓↓↓↓↓↓↓↓↓↓↓↓↓↓☆★↓↓↓↓↓↓↓↓☆★

This catalog features the circuit breakers and residual current devices 'New-FM' with ratings from 30 to 225AF (2-pole and 3-pole types). Our product employs a fully electromagnetic mechanism for the overcurrent release device, which does not use thermal elements such as bimetals, offering superior principles. It has many features. We introduce features, operating principles, characteristics, and more, so please use this information for product selection. [Contents] ■1. Overview ■2. Characteristics ■3. Installation and Connection ■4. Accessories ■5. Specifications by Type, Outer Dimensions ■6. Appendix *For more details, please refer to the PDF document or feel free to contact us.

This catalog introduces the "Leakage Circuit Breakers" handled by Nikkou Electric. It includes a list of ratings, auxiliary devices, related products, specifications by type, characteristics, and dimensional drawings. Please feel free to download and take a look. 【Contents (partial)】 ■ List of ratings ■ Auxiliary devices ■ Introduction of products related to leakage circuit breakers ■ Specifications by type, characteristics, dimensional drawings ■ Series for welding machines *For more details, please refer to the PDF document or feel free to contact us.

This catalog is a comprehensive catalog featuring the "Circuit Protectors" handled by Nikkō Electric. It includes various products such as the "IB Series," which is panel-mounted and can be manufactured with a rated current of up to 25A despite its ultra-compact size, as well as the "IMN Series" and "ICS Series," which standardly include an inertial delay. Please make use of this for selecting products. [Contents] ■ Operating Instructions ■ Rated Current List ■ Circuit Protectors ■ Overcurrent Protectors ■ Introduction of Related Products *For more details, please refer to the PDF materials or feel free to contact us.

For more details, please refer to the PDF document or feel free to contact us.

NY50A Series (General Wiring Protection) This is a 50AF circuit breaker for wiring that protects medium-capacity trunk lines and branch circuits in distribution boards and control panels, as well as various power supply devices (2-pole: NY52A, 3-pole: NY53A). Unlike typical thermal-magnetic types, it employs a fully electromagnetic design using an oil dashpot, allowing it to exhibit trip characteristics as designed even in harsh temperature environments, such as sealed panels during summer or areas with concentrated heat-generating equipment. It eliminates concerns about false tripping in large current loads (such as heater panels, large-capacity switching power supplies, and distribution trunk lines) where the 30AF may be insufficient, thereby establishing a robust power infrastructure. MNY50A Series (Motor Protection Compatible) This is a 50AF motor breaker designed for large-capacity three-phase induction motors, such as blowers, high-pressure pumps, and large compressors (3-pole: MNY53A). It features a large inrush current delay characteristic that allows for inrush currents several times the rated current during motor startup, thoroughly preventing malfunctions at startup. In the event of overload, binding, or short-circuit accidents, it quickly disconnects the circuit. Being fully electromagnetic, it allows for immediate re-engagement without waiting for a cooling period after tripping, minimizing downtime for factory production lines and critical equipment.

NS30A / NS30AB (General Wiring Protection) This is a 30AF circuit breaker designed to reliably protect electric heating, lighting, and various control power circuits within industrial machinery and control panels. Thanks to its fully electromagnetic design, it does not malfunction even when the internal temperature rises due to high-density mounting. In addition to the standard surface wiring model "NS30A (NS32A/NS33A)," we offer the "NS30AB (NS32AB/NS33AB)" which allows for stud wiring from the back of the panel. This enables optimal layout design tailored to the panel structure, achieving a smart panel configuration that minimizes wiring exposure on the surface and saves space. 3. MNS30A / MNS30AB (Motor Protection Compatible) This is a motor protection compatible model designed to handle the transient high inrush currents that occur during the startup of three-phase and single-phase induction motors (such as pumps, fans, compressors, etc.). It features a motor-specific delay characteristic using an oil dashpot, ensuring that unnecessary trips during startup are reliably prevented, while also providing rapid disconnection in milliseconds during abnormal conditions such as binding or short circuits. We offer both the standard wiring model "MNS30A" and the back wiring model "MNS30AB," achieving toughness for immediate re-engagement even in environments with heavy startup loads, along with flexible internal panel mounting capabilities.

NS50A Series (NS52A / NS53A) [General Wiring Protection - Standard Breaker Type] A versatile 50AF model with standard breaking capacity. Due to its fully electromagnetic design, it does not experience false tripping due to ambient temperature even in high-temperature environments such as sealed control panels in summer, and it can be reset immediately after tripping. NS50AH Series (NS52AH / NS53AH) [General Wiring Protection - High Breaking Type] An advanced model with significantly enhanced rated breaking capacity (kA value) compared to the standard type (NS50A). It prevents damage to the breaker itself even in the event of a short circuit accident and safely interrupts large currents reliably. MNS50A Series (MNS53A) [Motor Protection Compatible - Standard Breaker Type] Equipped with a "motor-specific delay characteristic" that allows inrush currents of 5 to 8 times the rated current generated during motor startup to pass without tripping. It trips quickly during constraints, steady overloads, or short circuits. MNS50AH Series (MNS53AH) [Motor Protection Compatible - High Breaking Type] A heavy-duty model that combines "large inrush current delay specifically for motor protection" with "high rated breaking capacity (H specification)." It provides reliable motor protection even in harsh power supply environments.

The NS50AU (NS52AU / NS53AU) and MNS50AU (MNS53AU) in the New-FM series are fully electromagnetic circuit breakers (MCCB) for wiring, certified to UL standards (North American safety standards), as indicated by the suffix "U." They are designed primarily for integration into control panels and distribution boards for export machinery and equipment aimed at the North American market (United States and Canada), as well as for the domestic market.

Since it does not have a thermal element like a bimetal that does not change its operating characteristics with ambient temperature, the trip current is not affected by the internal temperature of the panel or the outside air temperature (temperature difference), allowing for stable continuous current flow up to 100% of the rated value. Immediate re-energization after tripping is possible; after an overload trip, there is no need to wait for the bimetal to cool down. If the cause is removed, the handle can be reset immediately to restore power (reducing recovery time). Both overcurrent and short circuit are protected with high precision; for mild overcurrent, a delay due to the viscosity resistance of the oil is applied (time delay operation), while for large short circuit currents, the armature is immediately attracted without waiting for the core to retract in the oil, resulting in instantaneous disconnection.

[Recommended alternative models: We recommend 100A frame circuit breakers with a rated current of 60A for each circuit breaker.] If you have any questions or concerns, please contact the Sales Department of Nikkou Electric Manufacturing Co., Ltd. at 044-455-1211. Nikkou Electric Manufacturing's "New-FM Series NY60A / MNY60A" is a 60AF wiring circuit breaker that employs a fully electromagnetic (oil dashpot type) mechanism for the tripping function. It features stable tripping characteristics that are not affected by temperature changes within the panel, and allows for immediate re-energization after tripping. We offer two models: the "NY type" for wiring protection and the "MNY type" for motor protection.

Notice of Production Discontinuation for 60A Frame (January 26, 2023) 1. Discontinued Models Product Name Model Number Wiring Circuit Breaker (General Purpose Series) NS62A NS63A NS62AH NS63AH Wiring Circuit Breaker (Motor Breaker) MNS63A MNS63AH 2. Recommended Alternative Models: 100A frame circuit breakers with a rated current of 60A are recommended for each circuit breaker. 3. Timing of Production Discontinuation: Until delivery on September 30, 2023 (Last order acceptance period: Orders received by June 30, 2023) For any questions or inquiries, please contact the Sales Department of Nikkoh Electric Manufacturing Co., Ltd. at (044-455-1211). This is the "New-FM Series" 60AF wiring circuit breaker from Nikkoh Electric Manufacturing Co., Ltd. It features a fully electromagnetic design using an oil dashpot, ensuring reliable protection that is not affected by ambient temperature and allowing for immediate re-engagement after a trip. In addition to the standard breaking capacity types (NS/MNS), we also offer high breaking capacity types (NS-AH/MNS-AH) that are compatible with higher power sources and large capacity systems.

The "New-FM Series NY100A / MNY100A" from Nichiko Electric Manufacturing Co., Ltd. is a 100AF wiring circuit breaker that adopts a fully electromagnetic design using an oil dashpot. It ensures reliable operation unaffected by temperature rises within the panel or changes in external temperatures, and allows for immediate re-engagement right after tripping. It is available in two types: the wiring protection type "NY100A" for main and branch lines, and the "MNY100A" which also provides motor protection.

The "New-FM Series NS100A / MNS100A" from Nichiko Electric Manufacturing Co., Ltd. is a 100AF circuit breaker that adopts a fully electromagnetic design with an oil dashpot mechanism. It provides high-precision overcurrent protection that is unaffected by ambient temperature and enables immediate re-engagement right after tripping. It is available in two types: the "NS100A" for wiring protection of main and branch circuits, and the "MNS100A" for motor protection.