SFB technology - Power supply units for the highest system availability
Compact power supply units of the new QUINT POWER generation with SFB technology maximize the availability of your system.
Standard power circuit-breakers can be triggered reliably and quickly for the first time with the SFB technology (selective fusebreaking technology), 6 times the nominal current for 12 ms.
Defective current paths are switched off selectively, the defect is isolated and important system parts remain in operation.
Practical example: Short-circuit outside the control cabinet
The loads are supplied with 24 V DC by a switched-mode power supply unit in the system. The individual current paths are always backed up by a power circuit-breaker.
If there is a short-circuit on the infeed line, it is being displayed! Power circuit-breakers require a high short-circuit current to be safely triggered within a few milliseconds. Conventional switched-mode power supply units are often unable to do this.
QUINT POWER with SFB technology guarantees a fast and reliable triggering of standard power circuit-breakers. The defective current path is cut off; all other loads are continuously supplied with 24 V DC.
Planning matrix
- DC power supply
- Power circuit-breakers
- Cable cross-section
- Cable length
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Product overview
QUINT POWER with SFB technology - Ensuring the highest system availability. Products and additional information may be found in the Phoenix Contact online catalogue.
Questions
Do you have any questions regarding the new SFB technology by Phoenix Contact? Please use the following form.