MCCB/NFB 4P 400A 50KA/415VAC

Molded Chase Circuit Breaker (MCCB) is an electrical component that functions as a safety and circuit breaker when a short circuit or overload occurs, which can cause damage to the electric motor and fire due to sparks. MCCB is more popularly used as security for large-scale electrical installations, for example, in malls, factories, offices, and various other industries. MCCB usually uses 3 phases because it is only used as a safety measure for electric motors in the industrial world. MCCB also has several pole options, namely, 1 pole, 2 poles, 3 poles, and 4 poles.

Characteristics of Moulded Chase Circuit Breaker (MCCB) : 

• Uses three phases.
• Ampere Rating: 100A–1000A
• Network frequency: 50/60 Hz
• Using thermal magnetic
• Can be set to Fixed or Adjustment

The main function of an MCCB (Molded Case Circuit Breaker) is as a protection device for electrical equipment against short circuits or excess electric current (overload) so as to avoid damage and fire. The MCCB device is equipped with a temperature sensor and current sensor feature so that this device is able to work automatically based on current and temperature conditions. In general, MCCB has a greater function than MCB because its specifications are greater and it uses 3 phases. Therefore, this device is only used as protection for electric motors in the industrial world.

Schneider MCCB EasyPact EZC400 N/H

• Application for electrical installations with breaking capacity
• Termination Capacity: 36 kA to 50 kA at 380/415 VAC.
• Thermal magnetic trip unit, non-adjustable.
• Fixed type, front connection.
• One size (frame size) for all ratings.
• Meets IEC 60947-2 standards.

To download the product datasheet, please click here!

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This is a 400A circuit breaker for EasyPact EZC400H. This product can work below rated operational voltage(Ue) 440VAC at 50/60Hz. The ultimate breaking capacity(Icu) is 50kA at 440V, in terms of complete range Ics=100%Icu(Ics= 50%Icu at 440V. This version of product is designed 4 poles frame with detection on 3 poles,equiped TMD trip unit for thermal-magnetic protection. It is compliance with standard IEC60947, CE certification and some independent lab(KEMA,ASEFA,TUV) or third-party Tilva. This device is certified for operation in pollution degree III environment as defined by IEC60947, and pass the test of extremely atmospheric conditions. Device can be mounted vertically or horizontally in a metal enclosure,and against from safety risk by padlocking. The degree of protection is IP40 for direct rotary handle,and IP54 for extended rotary handle. This series have slots used for indication or voltage release auxiliaries positioning , depending on where it is inserted in the device behind the front cover of circuit breaker. The fixed dimension is 185mm(width),255mm(height),110mm(Depth).

Specification

Type of electrical connection of main circuit	Screw connection
Complete device with protection unit	TRUE
Type of control element	Toggle
DIN rail (top hat rail) mounting optional	FALSE
Number of auxiliary contacts as normally closed contact	0
Number of auxiliary contacts as normally open contact	0
Number of auxiliary contacts as change-over contact	5
With switched-off indicator	TRUE
Rated permanent current Iu	400 Ampere
Rated voltage	220…440 Volt
Position of connection for main current circuit	Front side
Number of poles	4
Rated short-circuit breaking capacity lcu at 400 V, 50 Hz	50 kiloampere
With integrated under voltage release	FALSE
Motor drive integrated	FALSE
Power loss	30 Watt
Integrated earth fault protection	FALSE
Adjustment range undelayed short-circuit release	4000 Ampere
Degree of protection (IP)	IP20
Motor drive optional	FALSE
Suitable for DIN rail (top hat rail) mounting	FALSE
Device construction	Built-in device fixed built-in technique

Documents

• Declaration of conformity - PP_EU_DoC_EZC400,630_PB17102303C
• Circularity Profile - EZC630N3600N Easypact EZC630N
• CAD - EZC250N 25KA 4P3D 250A MG EASYPACT CIRC
• Environmental Disclosure - EZC630N3600N Easypact EZC630N
• Instruction sheet - EasyPact EZC 400-630 instruction sheet
• Catalog - EasyPact EZC Catalog
• How to video - How to install Extended Rotary Handle-14