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VEP-M circuit breaker is a brand-new VEP product developed by Xiamen Huadian Switchgear Co., Ltd based on many years' experience in manufacturing circuit breakers. It integrates the essence of professional designs in China and Germany, and the highly reliable operating mechanism adpots integrated design, which greatly improves the output stability and maintenance efficiency; new technology of solid insulation ensures that the embedded pole is completely maintenance-free during its service life. This product leads the world in terms of design and manufacture of medium voltage vacuum circuit breakers.
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VEP-M indoor medium-voltage embedded pole vacuum circuit breaker is complete in specifications and excellent in performance
- Rated voltage : 3.6/7.2/12 kV
- Rated current : up to 4000A
- Rated short-circuit breaking current : up to 40 kA
- Rated peak withstand current : up to 100 kA
- Mechanical life: up to 30000 cycles
- Rated short-circuit current breaking times: up to 50 times
- DC component at rated short-circuit breaking current ≥50%
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Name Unit Value Rated voltage kV 3.6/7.2/12 Rated frequency Hz 50 Rated power frequency withstand voltage (1 min) kV 42 Rated lightning impulse withstand voltage (peak) kV 75 Rated current A 630 630 630 1250 1250 1250 1250 1600 1600 1600 2000 2000 2000 2500 2500 2500 3150 3150 3150 4000* 4000* Rated short-circuit breaking current kA 20 25 31.5 40 Rated short-time withstand current (4s) kA 20 25 31.5 40 Rated short-circuit closing current (peak) kA 50 63 80 100 Rated peak withstand current (peak) kA 50 63 80 100 Breaking frequency of rated short-circuit current Times 50 Rated operation sequence O-0.3s-CO-15s-CO Automatic reclosing O-0.3s-CO-180s-CO Rated operating voltage V AC220/110 DC220/110 DC48 Mechanical life Times 30,000(31.5kA and below) 20,000(40kA)