WS-V Series
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Catalog excerpts

Molded Case Circuit Breakers Earth Leakage Circuit Breakers Mitsubishi Molded Case Circuit Breakers and Earth Leakage Circuit Breakers 12

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Since we, Mitsubishi Electric, launched the first low-voltage circuit breakers in Japan in 1933, Mitsubishi low-voltage circuit breakers has satisfied the needs of the age and led the industry market for more than half a century all over the world. By bringing together our years of experience and technologies, we would like to introduce "WS-V Series" circuit breakers with superior aspects such as the higher breaking capacity, design for easy use, standardization of accessory parts, compliance to the up to date international standards and so on. We believe "WS-V Series" circuit breakers will...

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High-Performance Technologies based on long year experience are brought together to realize more improved performance The new circuit breaking technology “Expanded ISTAC” has improved the current-limiting performance and upgraded the overall breaking capacity. Expansion of the conductor under the stator shortens the contact parting time of the mover as compared to the conventional ISTAC structure. The current-limiting performance has been improved remarkably. (The maximum peak current value has been reduced by approx. 10%.) Example of breaking capacity improvement New circuit breaking...

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The new electronic circuit breakers (with display) and MDU breakers can display various measurement items ■ This will enable energy management through "visualization", which leads to energy saving. Electronic Circuit Breaker (with display) Measuring Display Unit #The display is on the circuit breaker body and shows circuit information. • Detailed setting can be done on the display. #The display turns red during alarms. Intelligent Communications through CC-Link Measuring data can be transmitted to Personal Computer through CC-Link. Display Unit Energy Energy measurement unit measurement...

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Compact design for easy to use I The thermal adjustable circuit breakers and electronic circuit breakers are smaller. (Compared with our conventional models) (Conventional model : 105 x 165 x 86mm) (New model : 105 x 165 x 68mm) ■ 250AF circuit breakers' fixed types (NF250-CV, NF250-SV, NF250-HV, NV250-CV, and electronic types (NF250-SEV, NF250-HEV, NV250-SEV, NV250-HEV) are the same size, leading to the reduction and standardization of panel design. Types of internal accessories are reduced from 3 types to 1 type ■ Standardization of internal accessories contributes to the reduction of...

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High Quality Innovative manufacturing using a robot-cell production line This manufacturing innovation takes the pursuit of increased productivity, shortened manufacturing lead-time and improved quality to the upper limits. Robot-cell Production Line Individual unit production management system A multi-model, single-unit flow production system is utilized the ultimate multi-cycle production method. The production line is controlled using barcodes to manage the model information for each unit. Small-lot, flexible production that’s one step ahead! Manual Adjustment Work Timely Resupply...

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Environment Use of Various Recyclable Materials The circuit breakers are made of thermo-plastic materials that are easy to recycle. (Some models are partially made of thermoset materials.) The major plastic parts bear material identifications so that they can be recycled. Nonuse of Hazardous Substances Eco-friendly design is used for all circuit breakers, and they do not use hazardous substances. The circuit breakers comply with RoHS regulation. Energy Saving at Mitsubishi Electric Corporation Fukuyama Works Mitsubishi Electric Corporation Fukuyama Works uses energy saving support devices...

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Global Global Networks of Sales Offices and Production Bases Our sales networks are designed to comfort customers internationally through the worldwide distributors. Constantly contactable distributors enable us to accommodate customer’s needs for smooth supply. Sales Office:62 MITSUBISHI ELECTRIC DALIAN INDUSTRY PRODUCTS CO.,LTD :19 branch office representative office :43 (available in 56 countries) :2 Production Base MITSUBISHI ELECTRIC CORPORATION FUKUYAMA WORKS 9

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1 Outline of Mitsubishi Circuit Breakers Product Line-up Note *1 When placing an order, specify "MB.'1

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1 Outline of Mitsubishi Circuit Breakers Miniature Circuit Breakers Residual Current Circuit Breaker Residual Current Circuit Breaker with Overload Protection Isolating Switch Circuit Protectors Related Components Earth Leakage Relays

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• Carefully read the safety precautions prior to use the circuit breaker correctly. • Important safety instructions are given below. Strictly • Be sure to communicate these safety precautions to the [Explanation of warning symbols] • Do not touch the terminal area. Doing so can cause an electric shock. • The earth leakage circuit breakers are designed to operate when the difference between leaving current and returning current exceeds the specified value. In the case shown in this figure, earth leakage is not detected. Therefore, never touch the two bare live parts. The circuit breaker will...

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2 Detailed Specifications 1 Molded Case Circuit Breakers 1) NF-C (Economy class)…………………………………………………………………………………………………………………………… 2) NF-S (Standard class)…………………………………………………………………………………………………………………………… 3) NF-L/NF-H/NF-R (High-performance class) …………………………………………………………………………………………………… 4) NF-U (Ultra current-limiting class) ……………………………………………………………………………………………………………… 2 Earth Leakage Circuit Breakers 14 14 16 20 23 24 1) NV-C (Economy class) ………………………………………………………………………………………………………………………… 24 2) NV-S (Standard class)…………………………………………………………………………………………………………………………… 26 3) NV-H/NV-R (High-performance...

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