The W1 series intelligent low-voltage air circuit breaker is designed for distribution networks (AC 50Hz) with voltages up to 660V (690V) and current ranges from 200A to 6300A.
It offers reliable protection for electrical systems against overload, undervoltage, short circuits, and single-phase grounding.
With its intelligent protection features and selective protection, it helps ensure stable power supply and prevent unnecessary outages. The breaker also supports remote operations and integrates with control and automation systems.
It withstands pulse voltages of up to 8000V at altitudes of 2000 meters and meets GB 14048.2 and IEC 60947-2 standards.
1. Featured with completeintelligence, high breaking capacity and zero arc;
2. AC rated current 200A-6300A, short circuit breaking capacity 85kA~120kA;
3. It has 3 and 4 poles, draw-out type and fixed type, and can be installed with inverted wires;
4. With multiple intelligent controllers, providing differentfunctions,intelligent function, display function;
5. Setting function, monitoring function, fault memory function, available for communication interface for remote measurement, remote adiustment, remote control and remote communication;
6. With complete protection features, convenient setting and high accuracy, it has instantaneous, short delay, long delay, single-phase grounding and
other protection characteristics.
1. The Rated Current
Rated Frame Current Inm A | Rated current In A |
2000 | 400, 630, 800, 1000, 1250, 1600, 2000 |
3200 | 2000, 2500, 2900, 3200 |
4000 | 3200, 3600, 4000 |
6300 | 4000, 5000, 6300 |
2. The Breaking Capacity and Short-Term Withstand Current
Rated Frame Current Inm A | 2000 | 3200 | 4000 | 6300 | |
Rated Ultimate Short-Circuit Breaking Capacity Icu(KA)O-CO | 400V | 80 | 100 | 100 | 120 |
690V | 50 | 65 | 65 | 85 | |
Rated short-time making capacity n x lcu(KA)/-cosΦ | 400V | 176/0.2 | 220/0.2 | 220/0.2 | 264/0.2 |
690V | 105/0.25 | 143/0.2 | 143/0.2 | 187/0.2 | |
Rated service short-circuit breaking capacity Ics(KA)O-CO-CO | 400V | 65 | 80 | 80 | 100 |
690V | 50 | 50 | 65 | 75 | |
Rated short-time withstand current Icw(KA) 1s, delay 0.4s, O-CO | 400V | 50 | 65 | 65/80(MCR) | 85/100(MCR) |
690V | 40 | 50 | 50/65(MCR) | 65/75(MCR) |