CNC 4 Pole MCB provides overload and short-circuit protection for three-phase AC circuits requiring simultaneous switching of three phases and neutral.
CNC 4 Pole MCB 20A-63A – Three Phase + Neutral Circuit Protection
Looking for a reliable 4 Pole MCB price in Pakistan? The CNC YCB7-63N 4 Pole MCB is designed for three-phase AC electrical systems where all three phase conductors and the neutral need to be switched together.
With a 4-pole configuration, the breaker provides coordinated isolation of L1, L2, L3 and neutral, making it suitable for properly designed three-phase distribution boards, commercial electrical systems, generator panels and selected three-phase inverter applications.
CNC 4 Pole MCB Specifications
Brand
CNC Electric
Model
YCB7-63N
Product Type
Miniature Circuit Breaker (MCB)
Poles
4 Pole / 3 Phase + Neutral
Available Ratings
20A, 32A, 40A, 63A
Rated Voltage
400V AC
Frequency
50/60Hz
Breaking Capacity
6kA
Trip Curve
C-Curve
Standard
IEC 60898-1
Mounting
35mm DIN Rail
Width
4 DIN modules / approx. 72mm
What is a 4 Pole MCB?
A 4 Pole MCB is designed for electrical systems using three phase conductors together with a neutral conductor. All four poles are mechanically linked so they operate together.
This makes a 4P breaker useful where simultaneous isolation of the complete three-phase plus neutral circuit is required.
4 Pole MCB vs 3 Pole MCB
A 3 Pole MCB operates on the three phase conductors, while a 4 Pole MCB also includes the neutral conductor in the switching arrangement.
The correct breaker configuration depends on the electrical system, earthing arrangement, load requirements and applicable installation standards.
Common Applications
Three-phase distribution boards
Commercial electrical panels
Industrial distribution circuits
Generator and backup-power panels
Three-phase AC inverter output circuits
Three-phase systems requiring neutral isolation
Commercial and large residential electrical installations
C-Curve 6kA Circuit Protection
The CNC YCB7-63N uses a C-Curve trip characteristic and provides a rated short-circuit breaking capacity of 6kA according to its specified operating conditions.
The breaker should always be selected according to the prospective fault current, connected load, conductor capacity and requirements of the electrical installation.
Available 4 Pole MCB Ratings
Choose from 20A, 32A, 40A and 63A according to your system requirements. Breaker selection and conductor sizing should be confirmed by a qualified electrician or electrical designer based on the actual installation.
4 Pole MCB Price in Pakistan
Shop the CNC 4 Pole MCB 20A-63A in Pakistan from Electrified.pk. Select your required ampere rating to view current pricing and stock availability.
Electrified.pk supplies electrical, solar and energy-related products for residential, commercial and professional installations across Pakistan.
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