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WNB1-63 4P MCB 6kA Four Pole Circuit Breaker

Shop Westhomes WNB1-63 4P MCB with 6kA breaking capacity. Ideal for 415V systems, this Four Pole Circuit Breaker isolates Phase and Neutral.

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WNB1-63 4P MCB 6kA Four Pole Circuit Breaker | 415V 3-Phase + Neutral

Westhomes WNB1-63 4P Miniature Circuit Breaker – Complete Isolation for Three-Phase Systems with Neutral.

The Westhomes WNB1-63 4P MCB is the ultimate solution for applications requiring total isolation and protection of all incoming conductors. By protecting all three phases and the neutral conductor, this breaker ensures absolute safety for maintenance personnel and equipment in complex three-phase installations.

Key Features:

Full System Isolation: Switches and protects all four poles (L1, L2, L3, N), ensuring no live parts remain when the breaker is in the “OFF” position.

Neutral Protection: Unlike switched neutrals, the 4P design provides overload and short circuit protection on the neutral in applicable configurations (depending on network type).

Reliable 6kA Performance: Maintains consistent breaking capacity across all poles for dependable fault clearing.

Adaptable Tripping: Available in B, C, and D curves, allowing customization for everything from electronic loads to high-induction machinery.

Universal Mounting: Standardized housing for DIN rail systems, making it easy to integrate into main distribution boards (MDBs).

Applications

Main switch for small workshops, three-phase distribution boards requiring neutral isolation, server rooms, and industrial control panels.

Key attributes

Type MCB
BCD Curve B, C, D
Rated Frequency (Hz) 50hz/60hz
Material Copper
Application Circuit-Breaking
Model Number WNB1-63 Series

Rated Voltage 220V/230V, 400 V
Breaking Capacity 6 kA
Mounting Type Rail Mounting
Protection Li
Place of Origin Zhejiang, China
Brand Name Westhomes

Standard IEC/EN 60898-1
Protection Overcurrent and short circuit
Type of trip Thermo-magnetic
No.of poles 1P,1P+N,2P,3P,3P+N,4P
Rated currents(In) 1,2,3,4,5,6,8,10,16,20,25,32,40,50,63A
Rated voltage(Ue) 240/415V~
Rated frequency 50/60Hz
Rated breaking capacity 3KA,4.5KA,6KA.
Rated impulse withstandard voltage(1,5/50)Uimp 4,000V
Dielectric test voltage at Ind.Freq.for 1 min 2kV
Thermal release characteristic (1.13-1.45)x In
Magnetic release characteristic B:(3-5)x In,C:(5-10)x In,D:(10-20)x In
Electrical life 4,000 Cycles
Mechanical life 10,000 Cycles
Contact position indicator Yes
Protection degree IP20
Ambient temperature -5℃ to+40℃,Max.95%humidity
Terminal connection type Cable/Pin-type busbar
Installation Mounting on 35mm DIN rail
Connection From top and bottom

Packaging and delivery

Selling Units Single item

Lead time

Quantity (pieces) 1 – 1,000 > 1,000
Lead time (days) 15 To be negotiated

FREQUENTLY ASKED QUESTION (FAQ)

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Westhomes® is a professional manufacturer for low voltage and high voltage electrical products with a thirty-year history.

Main supplier of state-owned companies like China Stae Grid, China Southern Power Grid through bidding with bunches of test certificates, sales records and operation performance to support.

Enough investment for research and development for the products innovation.

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18 months from the date of receivement

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Depends on the required quantity and delivery urgency, both international express like UPS / DHL / EMS / HK EMS / FedEx / TNT (door to door service) and normal sea shipping & air freight also avaliable.

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Up to the client

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We accept T/T, Paypal, Western union, L/C. Normally 30% payment in advance, 70% before delivery.

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First to send an inquiry via made-in-china platform or directly to the contact e-mail address. All the following thing is the communication between us.

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