The rated insulation voltage of the CYM7 series new energy high-voltage molded case circuit breaker is 1200V, suitable for distribution networks with AC 50-60Hz, rated voltages of 690V, 800V (Ics=50kA), 1000V, 1140V, and rated currents up to 320A. Under normal circumstances, circuit breakers can be used for infrequent switching of lines and infrequent starting of motors. Protect the overload and short circuit of the circuit; It has protection functions for overvoltage and undervoltage of the line.

2. Working environment
Operating at an ambient temperature of -40 ℃ to+70 ℃ without reducing capacity at+50 ℃, suitable for high altitudes of 5000m.

PRODUCT FUNCTION
⑴ High mechanical lifespan (15000) and electrical lifespan (5000)

⑵ Short arcing distance: Standard with arc extinguishing cover and three-layer free metal partition to avoid secondary system failures caused by arc spraying during disconnection
⑶ Super current limiting capability
⑷ Super strong insulation performance, electrical clearance and creepage distance comply with UL489 standard
⑸ Inverted line does not reduce capacity
⑹ Has the ability to resist moisture, salt spray, and mold
⑺ New single breakpoint structure, more stable and reliable than double breakpoint structure (Disadvantages of double breakpoint structure:
1. Bridge contact is unreliable and prone to phase loss;
2. Double directional arc spraying can easily cause secondary system failures;
3. Multiple breakpoints, high internal resistance, and temperature rise;
4. Both the inlet and outlet ends are equipped with flying arc covers, resulting in large length dimensions;
5. The strength of the wiring terminal is insufficient, and wiring can easily cause terminal displacement, resulting in unstable delay;
6. Insufficient insulation between phases (at the through shaft and thermal magnetic release of the phase system) can easily lead to internal short circuits, especially in reverse wire applications. ）

Core Technology:
⑴ Anti drop technology for low repulsion reversal points of moving contacts;
⑵ Arc dissociation technology to achieve shorter arc flying;
The handle is arranged away from the arc extinguishing area to make the operator safer;