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Output voltage
12V DC
24V DC
48V DC

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Phoenix Contact QUINT SFB power supplies

Maximum functionality with SFB Technology - SFB (Selective Fuse Breaking Technology).

The powerful QUINT POWER power supplies with SFB Technology from Phoenix Contact, are ideally suited for ensuring the availability of your system. The power reserve enables the trouble-free start-up of high loads as well as the easy extension of your system. The combination of SFB Technology, preventive function monitoring, and long service life increases the availability of your application.

The range of features is rounded out with the customized confi guration of signaling thresholds and characteristic curves.

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SFB Technology (Selective Fuse Breaking)

  • Six times the nominal current for 15 ms triggers standard miniature circuit breakers quickly and reliably
  • In the event of short-circuits, faulty current paths are disconnected selectively
  • Faults are isolated to ensure that key system parts remain in operation without interruptions

For superior system availability, standard circuit breakers must be triggered magnetically to disconnect faulty current paths selectively. To ensure this, the SFB Technology supplies several times the nominal current for a short period, thus providing the necessary power reserve.

Your advantages

  • SFB Technology selectively triggers standard circuit breakers; loads connected in parallel continue working without interruption
  • Preventive function monitoring reports critical operating states before errors occur
  • Power reserve for easy system extension with a static boost with a sustained power of up to 125% and the ability to start heavy loads with a dynamic boost of up to 200% for five seconds
  • High level of immunity with integrated gas discharge tube, more than 20 ms mains buffering
  • Available preconfigured: from a batch quantity of just one


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Seltec Automation LLP
Unit G, Venture Business Park
Witty Street, Hull
East Yorkshire

Tel: 01482 225 297
Fax: 01482 212 470

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