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  1. Electricity - Electronics
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  3. Vacuum circuit breaker
  4. Siemens Medium-voltage – Power distribution

Circuit breaker for railway applications 3AH47
vacuummedium-voltagesingle-phase

circuit breaker for railway applications
circuit breaker for railway applications
circuit breaker for railway applications
circuit breaker for railway applications
circuit breaker for railway applications
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Characteristics

Type
vacuum
Electrical characteristics
medium-voltage, single-phase
Other characteristics
compact, indoor
Applications
for railway applications
Current

Max.: 40,000 A

Min.: 1,250 A

VAC

17.5 kV, 27.5 kV

Description

The electricity supply to railway systems calls for circuit breakers with special characteristics. Not only are single or two-pole circuit breakers usually needed for supplying traction current, the stringent demands for operational safety and number of switching sequences also far exceed those of regular applications. In addition, using single-phase rail systems creates tougher demands in terms of dielectric strength. The 3AH7 vacuum circuit breakers comply with standard EN 50152-1 and are therefore perfectly suited for use in rail applications involving grid frequencies of 16.7, 25, 50 or 60 Hz. Depending on the version, they can be used as master vacuum switches on locomotives or for stationary traction current supply. Depending on the version, the 3AH47 vacuum circuit breakers can handle up to 60,000 switching sequences. Their compact design means the control panels can be narrower.
*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.