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Phoenix Contacts new Safe Energy Control technology, or SEC for short, is the basis for durable and powerful lightning and surge protection and is backed with a 5 year warranty. The core is the revolutionary spark gap which safely prevents any line follow current. This protects your system, including fuses and arresters. A separate arrester backup fuse is therefore no longer needed in all common applications.

Your advantages

  • Increased service life of the electrical installation, thanks to spark gap without line follow current
  • Inexpensive and space-saving installation, thanks to savings on a separate arrester backup fuse
  • Easy replacement in the event of servicing with consistent plug-in protective devices
  • Predictive testing of the protective plugs with CHECKMASTER 2


Type 1 lightning arrester with integrated backup fuse

FLT-SEC-HYBRID – lightning arrester with integrated backup fuse 

FLT-SEC-HYBRID – lightning arrester with integrated backup fuse

FLASHTRAB-SEC-HYBRID is the first pluggable type 1 arrester without line follow current with integrated surge-proof arrester backup fuse. Thanks to the newly-developed push-pull mechanism, the protective plug can be easily pulled out. The integrated latching holds it securely in the base element during discharge.

Installation is easy and flexible, thanks to the integrated backup fuse. This allows you to stay adaptable to installation locations while saving space and reducing wiring effort. The FLASHTRAB-SEC-HYBRID is available for use in 230/400 V or 400/690 V power supply systems.

Type 1 lightning arrester for 400/690 volts

FLT-SEC-PLUS 440 – lightning arresters for higher nominal voltages 

FLT-SEC-PLUS 440 – lightning arresters for higher nominal voltages

The FLASHTRAB-SEC-PLUS-440 is specifically designed for higher nominal voltages. Thanks to its compact design and the consistent pluggability of the protective devices, it supports space-saving and flexible installation.

The technical performance of the FLASHTRAB-SEC-PLUS-440 is unique in this compact format. The type 1 arrester is used in 400/690 V TN as well as 400 V IT power supply systems. Lightning currents up to 35 kA are safely handled.

Thanks to the high continuous voltage of 440 V and the strong shock and vibration resistance, the FLASHTRAB-SEC-PLUS-440 is ideal for use in industrial systems and wind turbine 


Type 1 lightning arrester for 230/400 volts

FLT-SEC-PLUS 350 – lightning arresters for high nominal voltages 

FLT-SEC-PLUS 350 – lightning arresters for high nominal voltages

The FLASHTRAB-SEC-PLUS-350 is ideal for use in the unmetered area of the main supply and for industrial applications.

The powerful FLASHTRAB-SEC-PLUS-350 spark gaps without line follow current protect your systems every step of the way and significantly increase the service life of the electric installation. High voltage fluctuations and extreme lightning current loads up to 25 kA are no problem for the FLASHTRAB-SEC-PLUS-350. Even lightning currents up to 50 kA can be handled with the FLASHTRAB-SEC-PLUS-264.

Like all other type 1 arresters in the SEC family, the FLASHTRAB-SEC-PLUS is also tested and certified as a type 2 arrester.

Type 1 + 2 lightning/surge arrester combination

FLT-SEC-T1+T2 – combination of a type 1 and type 2 protective device 

FLT-SEC-T1+T2 – combination of a type 1 and type 2 protective device

The FLASHTRAB-SEC-T1+T2 is a genuine combination of a lightning current arrester and surge protective device. This type of arrester provides the ideal protection for environments with frequent switching operations.

Lightning currents are safely handled by the powerful spark gaps. This guarantees a low residual voltage, while dynamic surge voltages are reliably limited by the varistor-based type 2 arresters. This ensures optimum coordination between the spark gap and the varistor.

Minimize installation and maintenance effort considerably with the unique combined protective device, which has remained the only one of its kind for the past ten years. Now also available with spark gap without line follow current and newly designed type 2 arrester.

Type 2 surge protection

VAL-SEC – type 2 surge protection 

VAL-SEC – type 2 surge protection

The type 2 compact surge protective device provides maximum performance and high short-circuit withstand capability on just 12 mm per channel.

The VALVETRAB-SEC can be easily installed in any small distribution panel, without a separate arrester backup fuse, up to a nominal current of 315 A for the main fuse.

The high discharge capacity and the low overall width mean that the VALVETRAB-SEC provides reliable surge protection for every power supply.

Type 2 surge protective devices are also available for DC current sources with linear operating characteristics.

Type 3 device protection for AC/DC applications

PLT-SEC – type 3 device protection 

PLT-SEC – type 3 device protection

The PLUGTRAB-SEC is the powerful surge protection solution for end devices up to 230 V nominal voltage.

The newly developed internal disconnect device and the integrated arrester backup fuses provide increased safety in the event of electrical and thermal overload, regardless of the installed backup fuse.

For this reason, the PLUGTRAB-SEC is the reliable surge protection solution for AC and DC end devices.

We're betting that you won't see red for five years

PLT-SEC protective plug with green indicator 

Everything in the green – SEC plug with green status indicator

With the low-wear protective devices, you won't have to worry about replacing wear parts for at least five years.

Thanks to the SEC technology, the high-quality components are particularly durable. However, should the status indicator signal the need for replacement within the first five years following your purchase, you will receive free replacement plugs. For this purpose, just send the affected plug back to us.


For more information on all of the above units please click here for a short form catalogue detailing them along with possible applications & scenarios.

For detailed information on any unit please contact us. 

Contact Us

Clifton Court 
19A Clifton Road

Contact Form

Phone: 01582 477737

Fax: 01582 471084

About Protocol Power

As an official specialist Phoenix Contact UK distributor, you can always be assured of the very best technical help, prices and fast delivery from stock. We carry the entire Phoenix Contact range and if there are any other parts you need please contact us.

If you have seen a better price for any Phoenix Contact item please let us know where you have seen this - we have a 'Best Price Challenge' where we always aim to beat any price you may have seen.