Eaton Heinemann Circuit Breakers for Rail

Eaton Heinemann Hydraulic-Magnetic Circuit Breakers offer the most reliable, stable and accurate means of protecting your electrical equipment against overload or short-circuit, without creating nuisance tripping.

Eaton’s Heinemann Hydraulic-Magnetic Circuit Breakers (HMCBs) boast over 125 years of engineering excellence, making them a trusted choice in the rail industry. Engineered for performance, safety, and customisation, Heinemann HMCBs are ideal for demanding applications where precision and reliability are paramount.

HMCBs feature a unique mechanism consisting of a breaking chamber, a circuit breaker coil wound around a tube, and components like an iron core, spring, and mineral oil. This design ensures operation is unaffected by ambient temperatures, eliminating the need for oversizing in environments up to +85°C.

Reasons to select Heinemann Hydraulic-Magnetic Circuit Breakers

• Temperature Independence: Unlike thermal magnetic breakers, HMCBs maintain consistent performance in extreme temperatures, enabling optimized current ratings and reduced cable sizes, saving up to 100kg of copper per train car.

• Shock and Vibration Resistance: Front-mounted configurations can withstand shocks up to 100G per MIL-STD-202, ensuring reliability in rigorous conditions.

• Customisable Ratings: Current ratings from 0.1A to 1200A, adjustable to precise requirements, with robust inrush capabilities up to 22x the rated current.

• Versatile Tripping Curves: Options from instantaneous to long-delay curves meet diverse operational needs.

• Global Compliance: Heinemann HMCBs adhere to UL, IEC, VDE, CCC, GOST, and more.

Contact Aerco to find out more about Heinemann Circuit Breakers and let us help you select the right one for your needs.

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