Coupling Series for Welding Machine

Widely used in wind power, solar power, welding machine, SVG/ SVC, power soft start, EV/HEV, locomotive, frequency converter, switching power supply, plating power supply, UPS, induction heating machine, and other kinds of electronic equipment.

  • Rated voltage range:    250 ~ 1000VDC
  • Capacitance range:       1µF ~ 20µF

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  • Excellent resistance to active and passive flammability
  • Over-voltage capability
  • Low losses with high current capability
  • Long lifetime
  • High reliability

Technical Parameters

Reference standard GB/T17702, IEC61071
Climate category 40/85/21
Operating temperature range -40℃~85℃
Rated voltage 250VAC ~ 1000VAC
Capacitance range 1μF~20μF
Capacitance tolerance ±5% (J), ±10% (K)
Max. altitude 2000m
Lifetime expectancy 20000 hours(Un,θhs=70℃)
Failure rate 50 FIT
Insulation resistance Cn≤0.33μF ≥1000000MΩ  (60s, 20±5℃,500V. DC)
Cn>0.33μF IR*CN≥30000S (60s, 20±5℃,100V. DC)
Withstanding voltage 1.5Un (10s, 20±5℃)
Over voltage 1.1Un 30%of on-load-dur
1.15Un 30min/day
1.2Un 5min/day
1.3Un 1min/day
tgδo 2*10-3

Why choose BM capacitor?

One of the largest metalized polypropylene film capacitor manufacturers in China;

Fast lead time  in the market due to vertical integration of raw-material supply and fully automation production-lines;

With world-class lab center, strong R&D research and self-owned film metallization technology;

Highly consistent quality products by strictly adhering to  ISO and IATF16949;

Proudly work with top brands in appliances as well as the leading power and new energy customers.




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