Higher Performance
The new circuit breaking technology "Expanded ISTAC" upgrades current limiting performance, leading to higher breaking capacity.
- With higher breaking capacity, lower class models (e.g. NF-S General-purpose model to NF-C Economy model) can be used, thus leading to cost reduction of panels/machines.
Extending the conductor (reaction circuit for movable conductor) beneath the fixed conductor makes the movable conductor open faster than the conventional ISTAC mechanism.Significantly improves the current limiting performance.(Reduces the maximum peak current by 10%.)
Visualization
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)
- 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.
MDU breakers
Compact
The thermal adjustable circuit breakers and electronic circuit breakers are smaller.
- These breakers contribute to the reduction of panel size.
- 250AF circuit breakers' fixed types (NF250-CV, NF250-SV, NF250-HV, NV250-CV, NV250-SV, NV250-HV), thermal adjustable types (NF250-SGV, NF250-HGV, NF250-RGV), and electronic types (NF250-SEV, NF250-HEV, NV250-SEV, NV250-HEV) are the same size, leading to the standardization of panel design.
Standardization
Types of internal accessories are reduced from 3 types to 1 type.
- Standardization of internal accessories contributes to the reduction of stock and delivery time.
- 32AF and 63AF circuit breakers can now be used in both AC and DC circuits without specifying when ordering. This will lead to prevention of ordering mistakes.
- The earth-leakage circuit breakers can now be equipped with a voltage shunt trip device (SHT).
Environment
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.
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.
Energy Saving at Fukuyama Works
Mitsubishi Electric Cooperation Fukuyama Works uses energy saving support devices such as MDU breakers and EcoServer to save energy through "visualization" of energy. Along with "visualization", Fukuyama Works also installed high-efficiency equipments to further promote energy saving.
Through energy saving activity, Fukuyama Works has successfully reduced its electrical power consumption rate by 27% in 2007 (compared with 1990).
