verified 
Overview
Essential details
Place of Origin:
Japan
Brand Name:
Fuji
Model Number:
BW400SAG
Type:
molded case circuit breaker
Poles Number:
3
Product Name:
BW400SAG molded case circuit breaker FUJI 3P 400A
Efficiency:
84.5%~91%
weight:
5.1Kg
Dimension:
146*257*103mm (L*W*H)
Warranty:
1 Year
Current:
400amp
Pole:
3p
Rated frequency:
50-60HZ
Tripping device:
thermal magnetic
Rated voltage:
690vac
Supply Ability
Supply Ability
100 Set/Sets per Month
Packaging & delivery
Packaging Details
20*15*10cm
Port
Kaohsiung, Taiwan
Lead time:
Quantity(sets) 1 - 10 >10 Lead time (days) 7 To be negotiated
Related Products
>>What is relation products on MCCB?
MCCB
BW 125/400/630 AF
125 AF | 400 AF | 630 AF | |||||||
Type | BW125 | BW400 | BW630 | ||||||
Pole | 2 | 3 | 4*3 | 2 | 3 | 4*3 | 3 | 4*3 | |
Rated current In [A] | 15, 20, 30, 40, 50, 60, 75, 100, 125 | 250, 300, 350, 400 | 500, 600, 630 | ||||||
Rated impulse withstand voltage Uimp [kV] | 6 | 8 | 8 | ||||||
Isolation compliant | Approved | Approved | Approved | ||||||
Rated insulation voltage Ui [V] | AC | 690 | 690 | 690 | |||||
DC | 250 | 250 | 250 | ||||||
Rated frequency [Hz] | 50-60 | 50-60 | 50-60 | ||||||
>>How is dimension on MCCB, and its efficacy?
Product Description
>>Why ELCB?
Prevention of hazards and damage (such as electrical shock, electrical fire, and device damage)
that may occur in electrical equipment (as stipulated in IEC 60364)
A. Protection against direct contact
Protection of people from harzards(i.e.,electrical shock) that may occur due to touching charged parts of electrical equipment.
Use if ELCB with rated sensitive current not exceeding 30mA is recommended as the additional protective device.
B. Protection against indirect contact
Protection of people from electrical shock that may occur due to touching exposed conductive parts( such as metal frame of the device) when a fault occurs in electrical equipment.
As one of the protective measures, depending on the condition in TT or TN-S system, the automation cutoff of power supply with ELCB is specified in IEC60364-4-41.
For the details of the installation systems and how to apply ELCB, please refer to the following chart and flowchart.
>>What is the different between MCB and MCCB?
MCB is a miniature circuit breaker which is used to break small currents.(Like in domestic LT circuits)
* The ratings usually end up to 100 A
* Interrupting rating of under 18000 A
* Trip characteristics may not be adjusted
* Suitable for low current circuits (low energy requirement), i.e. home wiring.
* Generally, use where normal current is less than 100 A
MCCB is a molded case circuit breaker which has a rugged construction as it can break
Larger currents usually from (100~1000 A)
* Rated current in the range of 10-2500 A
* Thermal operated for overload and Magnetic operation for instant trip in SC(Short Circuit conditions)
* Interrupting rate can be around 10k~200k amps
* Suitable for high power rating and high energy i.e. commercial and industrial use
* Generally, use where normal current is more than 100 A
