Air-operated circuit breaker UR80-81over-currentDCfor railway applications
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Characteristics
- Type
- air-operated
- Electrical characteristics
- over-current, DC
- Applications
- for railway applications
- Primary current
8,000 A
- VDC
900 V
Description
The UR80-81S is a trip-free DC high-speed current limiting air circuit-breaker, single pole unit, bi-directional, with electromagnetic blowout, direct instantaneous over-current release, natural air-cooling and electrical operating system. The UR80-81S is mainly used in DC traction substation to protect the feeder contact lines and thrid rails and for insulation of defective line sections, but it is also used for industrial applications.
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*Prices are pre-tax. They exclude delivery charges and customs duties and do not include additional charges for installation or activation options. Prices are indicative only and may vary by country, with changes to the cost of raw materials and exchange rates.