WNB1-63 3P MCB 6kA Three Pole Circuit Breaker | B/C/D Curve for Motors
Westhomes WNB1-63 3P Miniature Circuit Breaker – Robust Protection for Three-Phase Commercial and Light Industrial Loads.
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WNB1-63 3P MCB 6kA Three Pole Circuit Breaker
Get the Westhomes WNB1-63 3P MCB. 415V three-phase protection with 6kA breaking capacity. Perfect for motors and pumps. B/C/D curves. DIN rail.
Designed for three-phase systems, the Westhomes WNB1-63 3P MCB delivers reliable protection for motors, pumps, and small machinery. This triple-pole breaker simultaneously monitors and protects all three phases (L1, L2, L3) against the damaging effects of overloads and short circuits.
Key Features:
Three-Phase Control: Switches and protects all three live conductors, ensuring balanced protection across the entire system .
6kA Breaking Capacity: Provides ample short-circuit protection for commercial environments, safely quenching electrical arcs up to 6kA.
Application-Specific Curves:
- C Curve: Ideal for general three-phase loads like distribution sub-panels.
- D Curve: Specifically designed to handle high inrush currents from small three-phase motors, transformers, and inductive loads.
Standard Integration: 18mm per pole width, compatible with all standard 35mm DIN rail enclosures.
Rated Voltage: Optimized for 415V AC 3-phase systems at 50/60Hz.
Applications
Three-phase lighting circuits, small water pumps, conveyor systems, compressors, and HVAC equipment.
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 |
155 MB
FREQUENTLY ASKED QUESTION (FAQ)
About the company
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.
About warranty
18 months from the date of receivement
About shipment method
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.
About MOQ
Up to the client
About payment method
We accept T/T, Paypal, Western union, L/C. Normally 30% payment in advance, 70% before delivery.
About ordering process
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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