DC circuit breaker for protecting, monitoring, and switching high DC loads, intermediate circuit precharging; can be parameterized, 0 V DC ... 800 V DC, up to 55 A, shutdown in the event of short circuit in <10 μs thanks to hybrid technology, integrated bus communication
Protecting, monitoring, and switching of high DC loads
The compact CONTACTRON ELR HDC DC circuit breaker with hybrid technology and intuitive parameterization from Phoenix Contact ensures sustainable, efficient, and safe operation of high DC loads.
Your advantages
- Efficient operation with highly innovative hybrid technology for protection, monitoring, and switching functions in DC grids
- Sustainable increase in efficiency through energy recovery (recouperation) in DC grids
- Overall width of only 85 mm saves space in control cabinets
- Optimal user-friendliness and flexibility resulting from intuitive configuration with clipx ENGINEER and easy communication via IO-Link interface
- Avoidance of current peaks during switching with the integrated pre-charging function
What is unique about CONTACTRON ELR HDC? In order to operate an industrial DC grid, switching devices that master its special challenges, such as arc-free switching for example, are required at the DC branches. With CONTACTRON ELR HDC, Phoenix Contact offers one of the first multifunctional DC circuit breakers on the market.
Main features and functions at a glance
We offer you the compact DC circuit breaker with hybrid technology and intuitive parameterization. Protect, monitor, and switch high DC loads with data logging, network capability, and sustainable efficiency increases through energy recovery.
- Overall width: 85 mm
- Operating current: 10 A ... 55 A
- Communication interfaces: IO-Link, DIO
- Operating voltage: 0 V ... 810 V
- Protection against overcurrent and overvoltage/undervoltage
- Intuitive configuration with clipx ENGINEER
- Integrated pre-charging for intermediate circuits
- All-position electrical isolation with relay
CONTACTRON ELR HDC: Protect, monitor, and switch high DC loads without any electric arcs
Direct current as a key technology in the automotive industry
In the automotive industry, direct current is considered the key technology of the future and large German companies are pioneers in its integration. Protecting, monitoring, and switching DC sectors to an existing DC infrastructure are technical challenges – and Phoenix Contact already has an answer.
The CONTACTRON ELR HDC DC circuit breaker was developed for exactly these tasks. It monitors operating current and voltage and, with its pre-charging function, prevents current peaks when switched on. In the event of an overcurrent, there is a three-stage shutdown.
DC grids in building automation
Integrating direct current into building automation also requires innovative switching and protective devices. Handling DC loads, especially pre-charging and switching, and monitoring voltage and current are crucial. Extremely short shutdown times improve operational safety in the event of errors. Energy efficiency in the overall system is increased by reducing the number of energy conversions (e.g., AC/DC). Direct DC feed-in (e.g., when using photovoltaic systems) also reduces energy losses.
DC power grids in industry
DC power grids in industry are becoming increasingly important on the road to more sustainable production. Phoenix Contact is committed to the safe use of DC technology and is researching comprehensive DC-based smart grids together with other companies. Learn why direct current is the industrial energy system of the future and what it has to do with sustainability.