LV Distribution
General-purpose molded case circuit breaker/ earth leakage circuit breakers: G-TWIN standard series line protection
TWIN Breakers have progressed into an entirely new arena.
Molded Case Circuit Breaker
- Complies with major international standards and certifications.(IEC,JIS,CE,TÜV,CCC)
- High performance and compact design breaker by FUJI's ingenious ablation breaking technology.
- Providing better user friendliness by the standardization of internal accessory parts.(32/50/63/100AF, 125/250AF，400/630/800AF)
- Material description of major components, compliance with RoHS Directive, and lower environmental impact by Cadmium-free contact. (subject to some exceptions.)
Earth Leakage Circuit Breaker
- Complies with the major international standards and certifications.(IEC,JIS,CE,TÜV,CCC)
- High performance and compact design breaker ｂｙ FUJI's ingenious ablation breaking technology.
- Pursuit of user friendliness by standardization of internal accessory parts. (32/50/63/100AF, 125/250AF，400/630/800AF)
- High workability can be obtained since the removal of ELCB wiring is not required at dielectric test during inspection.
- Contributes to safety and compactness by furnishing new three-phase power supply circuit acts in the event of ground fault even when the loss of one phase occurs in a three-phase system (Required in the revised IEC60947-2).
- Equipped with the newly developed leakage detection circuit, noise surge performance improves even better.
- Material description of major components, compliance with RoHS Directive, and lower environmental impact by Cadmium-free contact. (be subject to some exceptions.)
General-purpose molded: BX series
Full-featured & compact MCCB.
Ideal for protecting and measuring the power receiving and distribution circuit.
- 3 sizes and 9 frames of MCCB can cover currents rated from 100 A to 1600 A.
- Compliant with international standards.
IEC60947-2, EN60947-2, JISC8201-2-1, NEMA AB1 - Improved breaking performance because Ics (rated service short-circuit breaking capacity) is the same as Icu (rated ultimate short-circuit breaking capacity).
- Control unit & display unit
- Abundant lineups are provided from basic type only with over current protection function to enhanced type with power quality control.
- The combination with various measuring functions, such as an ammeter, watthour meter, harmonic meter as well as with long time delay, short time delay, and instantaneous delay is possible.
- The parameter measurement & operation, data storage, log event recording, alarm output, and communication functions are possible. - Internal accessories of various rating are prepared.
(auxiliary/alarm switch, voltage/under voltage trip, etc.) - The compact external operating handle and electric control device are also prepared. Possible to change the setting of control unit while attaching a handle.
Compactness, discrimination and modularity – new circuit breakers incorporate advanced monitoring and communication functions, from 40 amps up, combined with impeccable protection.
* Expert technology
A roto-active contact breaking principle provides each circuit breaker with very high breaking capacity in a very small device, remarkable fault current limitation performance, and endurance.
- BX benefits from a patented double roto-active contact breaking concept, together with a reflex tripping system for ultimate breaking.
- Exceptional fault current limitation guarantees robust, reliable protection and, above all, reduces the causes of component aging, thus extending service life for installations.
* New breaking capacities
New performance levels for BX improve application targeting:
- 50 kA – standard applications (industrial plants, buildings and hospitals),
- 70 kA – high performance at controlled cost.
* Reduced installation costs
Optimising installations allows for achieving up to 30 % savings:}
- considerable savings at the time of installation, thanks to total discrimination with miniature circuit breakers,
- smaller devices, more economic switchboards mean best overall installation cost, without overcalibration.
Monitoring and management
BX is a single device, which contains a monitoring unit to control energy consumption and power.
Integrated monitoring
* The BX range incorporates electronic trip units in the circuit breaker, offering both:
- an accurate power monitoring unit,
- a highly reliable protective device.
* A electronic tripping device combines next-generation sensors:
- an "iron" sensor for the power supply to the electronics,
- an "air" sensor (Rogowski coils) for measurement, guaranteeing high accuracy.
* These electronic systems are designed to withstand high temperatures (105°C), ensuring reliability under severe operating conditions.
* The originality lies in how measures, processes and displays data, either directly on screen, on the switchboard front panel, or via a monitoring system.
Accessibility of information…
To keep costs under control and ensure service continuity, relevant information must be available in real time:
* a kilowatt-hour meter helps optimise costs and their allocation,
* harmonic distortion rate shows the quality of electrical supply, * alarm notification secures operational control and maintenance planning,
* event logs and tables, activated continuously, ensure the installed equipment base operates correctly, so energy efficiency is maximized.
Simplicity
BX takes the principles of easy installation and use –
which made its predecessor so successful – to a higher level.
* Simple in design
Cut-outs are the same whatever the type of handle. Engineering drawings are the same, so installation and connection layouts can be used on new projects, simplifying extensions or retrofits, and reducing maintenance costs.
Integration in help software, for parameter settings and switchboard installation, further eases design.
*Simple to install
*Simple to use
General-purpose molded: BW0 seriess
Economy series MCCB from 32AF to 400AF
Focusing on assembly of easy wiring, maintenance check, reasonable price, and standardized distribution board design, BW0 series MCCBs are designed mainly for building construction market and secondary distribution market.
- 32AF
(1) Compact design
Cost and space saving forbuilding a control panel.
•Compact size
2P W36×H80×D76(mm)
3P W54×H80×D76(mm)
•AC 440V application
Icu: 1.5kA at 440V AC,
2.5kA at 240V AC
-
32AF
(2) Available accessories
• Auxiliary switch
• Alarm switch
• Shunt trip device
(3) Compliance to RoHS Directive
All materials used are compliant to RoHS Directive and the main components are easy to recycle.
100AF to 400AF
(1) Compact design
We've applied high-performance technology to achieve 100AF to 250AF models with a uniform depth of 60mm.
(2) Cassette type accessories
All materials used are compliant to RoHS Directive and the main components are easy to recycle.
(3) Compliance to RoHS Directive
(4) Interchangeability
The design of the same external dimensions (400AF) and mounting size (160AF to 400AF) with G-TWIN circuit breaker.
Just simply change the model when a customer suddenly changes the design (e.g. when changed to earth leakage circuit breaker).
Miniature circuit breakers: BC series
- 10kA short circuit breaking capacity.
- In accordance with IEC60947
- Ratings : 1,2 and 3 poles 1-63A
- Type C tripping characteristics (general use)
- IEC 35mm rail mounted, modular devices, 1 module (18mm/pole)
Miniature circuit breakers: BE1 series
This series of miniature circuit breaker is for the purpose of the protection of distribution equipment in the residential or similar facility, to protect against short circuit and overload damage.
- Among the characteristics of overload protection, there are the Curve C characteristic for the protection of lighting electrical systems having 5 to 10In instantaneous tripping characteristic, and the Curve D characteristic for the protection of ordinary electrical system wires having 10 to 14In instantaneous tripping characteristic.
- ELCB is completed by combining a miniature circuit breaker with an earth leakage shunt trip device.
- As functional components can be installed such as auxiliary switch, alarm switch among others, it can monitor and control the electrical system.
