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The WCW1 is an intelligent air circuit breaker covering 630A to 6300A at up to 690V AC. Used as a main incoming or bus-tie breaker in low-voltage distribution systems, it provides electronic trip protection with programmable settings for industrial, commercial, and infrastructure power networks.
The WCW1 series intelligent universal circuit breaker operates in AC 50Hz distribution networks at rated voltages up to 600V (maximum 690V), with rated currents from 200A to 6300A. It distributes power and protects against overload, short circuit, undervoltage, and ground fault conditions. The microprocessor trip unit supports selective coordination across multi-tier distribution architectures.
The WCW1 is available in three frame sizes: 2000A, 3200A, and 6300A. Each frame covers a range of rated currents with the same physical footprint, reducing spare parts inventory and simplifying switchboard design. Frame-rated currents (Inm) are 2000A, 3200A, and 6300A, with specific current ratings of 200A, 400A, 630A, 800A, 1000A, 1250A, 1600A, 2000A, 2500A, 2900A, 3200A, 4000A, 5000A, and 6300A.
The electronic trip unit offers adjustable protection parameters including long-time delay, short-time delay, instantaneous trip, and ground fault pickup. Settings are configured via a front-panel LCD display or through the communication interface for remote programming. The breaker supports 3-pole and 4-pole configurations with optional neutral pole protection.
Rated insulation voltage reaches 1000V with an impulse withstand of 12kV. Breaking capacities range from 65kA to 100kA at 400V depending on frame size, meeting the demands of main switchboards in power plants, data centers, hospitals, and heavy industrial facilities. A stored-energy operating mechanism with motor charging ensures fast close and trip speeds regardless of operator action.
Standard accessories include shunt trip, undervoltage release, auxiliary switches, door interlock, and motor operator. Communication modules support Modbus, Profibus, and DeviceNet protocols for integration into SCADA and building management systems. Each unit is type-tested to IEC 60947-2 with mechanical endurance exceeding 10,000 operations and electrical endurance of 5,000 cycles at rated current.
| Pole | 1P, 2P, 3P, 4P |
| Voltage | AC400V/690V |
| kA | 10, 20, 30, 40, 60, 80, 100 |
| Inm | 1000A, 2000A, 3200A, 6300A |
| In | 200A-6300A |
| Frame level rated current Inm (A) | Rated current In (A) |
| 1000 | 200, 400, 630, 800, 1000 |
| 2000 | 630, 800, 1000, 1250, 1600, 2000 |
| 3200 | 2000, 2500, 2900, 3200 |
| 4000 | 3200, 3600, 4000 |
| 6300 | 4000, 5000, 6300 |
| Frame level rated current Inm (A) | 1000 | 2000 | 3200 | 4000 | 6300 | |
| Rated ultimate short circuit breaking capacity Icu (kA) O-CO | 400V | 42 | 65 | 80 | 80 | 120 |
| 690V | 25 | 50 | 65 | 65 | 85 | |
| Rated operation short circuit breaking capacity Ics (kA) O-CO-CO | 400V | 30 | 40 | 50 | 50 | 100 |
| 690V | 20 | 40 | 50 | 50 | 75 | |
| Rated short time withstand current Icw (kA) 1s, delay 0.4s, 0-CO | 400V | 30 | 40 | 65 | 65 | 100 |
| 690V | 20 | 40 | 50 | 50 | 75 | |
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.
18 months from the date of receivement
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.
Up to the client
We accept T/T, Paypal, Western union, L/C. Normally 30% payment in advance, 70% before delivery.
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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