Přepěťové ochrany BrOK – kvalita za rozumnou cenu

přepěťové ochrany pro Antény, Audio, Datové sběrnice a Video - kvalitní řešení s dobrým poměrem cena/výkon

- is the coaxial broadband surge protection  BrOK® , type ZSPKO-N-x50-0,5G-B/F-F, typ 1 (lightning current drain) with increased service life and reliability. It is equipped with two parallel-connected gas fuses and is intended for use in the frequency range 0 - 500 MHz for the protection of the coaxial cable 50 Ω  and device inputs to this cable connected against the effects of overvoltage caused by elmg. industrial interference and thunderstorms. The protection is coupled between a coaxial cable and a protected input as a through cable clutch with N / F-F connectors.

     Specification of coaxial broadband surge protection BrOK®, type ZSPKO-N-x50-0,5G-B/F-F with increased service life and reliability.

The coaxial broadband surge protection SPKO-N-x50-1,5G-B/F-F is an overvoltage protection type 1 (lightning current drain) fitted with a gas-fired lightning arrester. .Overvoltage protection protects coaxial cables and devices from electromagnetic impulses associated with atmospheric discharges during a thunderstorm or industrial elmg interference as specified in IEC 61312-1 (tested with a current wave of 2.5 kA and a duration of 10/350 μs).

In order to facilitate proper functioning of any surge protection it is important to provide an adequate connection to the equi-potential lead of the protected system EP. This connection must be made using a copper conductor of at least 2.5 mm2. The protection is simply inserted in the line using connectors type N/F-F. Rugged construction of the protections assures reliable drainage of lightning currents thus protecting the equipment against thermal destruction. The effectiveness of the BrOK® protections allows them to be installed even in enclosures constructed using thermo-plastic materials.

Type designation: ZSPKO-N-x50-0,5G-B/F-F, see fig.1

Note: x = 0 for basic version to transmit power VF up to 50 W, x = 3 or x = 9 for custom design at surcharge of 15% to 350 or 950 W transmitted power.

Catalog code: zspkon05gb/ ff

Technical parameters of protection: 

 The protection is fitted with a 20 kA, 8/20 μs lightning arrester or an equivalent.
Bandwidth of protection: 0 - 500 MHz
Max. residual voltage on the protected output with IZRP applied: see fig.2
Attenuation and reflection coefficient in the working bandwidth: see fig.3
Test current impulse IZRP: 2,5 kA for pulse of 10/350 µs

The way how to connect a surge absorber into a signal path:

- as a cable through-junction by connectors N/F-F

- to an equipotential busbar of EP object by the stranded Cu conductor with the minimal cross-section of 2,5mm2 with molded cable eye and M5 bolt 

Mounting position: any                        Dimension-outlin:             Weight: 74 g                              Cover class: IP20


zspko n 05G b ff


Fig.2 Shows the trace of the residual voltage present on the output of the coaxial broadband surge protection BrOK®, type ZSPKO-N-x50-0,5G-B/F-F when subjected to a transient current wave of 2.5 kA, 10/350 µs.

  1 zspko n 05g ff

2 zspko n 05g b ff

Fig.3 The attenuation and reflection characteristic of the narrowband coaxial overvoltage protection BrOK®,

type ZSPKO-N-x50-0,5G-B/F-F when measured in the band from 100 to 550 MHz.

Analyzer Setting:

Attenuation:1,0 dB/div (yelow curve)

Reflection coefficient: -10 dB/div (green curve)

Cursor set at: 500,500 MHz 

Important warning:

For surge arresters fitted with a gas-fired lightning arrestor, it is recommended to periodically check the protection function at the interval 1x / year. In cases where broadband transmission protection is not necessary, we recommend the use of maintenance-free narrowband protection with short-circuit wiring.

The Warranty period is 36 months from the date of date of sale. In case of doubt is the condition of the warranty acceptation the check on place of instalation by our serviceman and the label type be intact. By the warranty period duration is possible to supply an spare surge absorber of a same type.  

The certificate of conformance was issued based on test protocol No: P 02/01/37 generated by certified test laboratory No: 1148,ABEGU Co., Zkusebna, Czech Republic. 

The overvoltage protection is made under utility design č.: 10494


The technical consultation and a service is provide by the company:

                                                                          Ing. Vladimír Brok, Jiráskovo nábřeží 717, 468 22 Železný Brod, Česká republika

Business and a technical informations:

                                                           cell phone: VoIP: +420484351351, mobil:+420604489036, e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it. www.prepeti.cz

Surge absorbers BrOK®-the quality for a reasonable price. 

Přepěťové ochrany BrOK®- kvalita za solidní ceny

Záruční lhůta je 36 měsíců od data prodeje. Podmínkou uznání záruky u reklamované přepěťové ochrany ve sporných případech je umožnění kontroly instalačních podmínek servisním technikem výrobce. Po dobu trvání reklamačního řízení můžeme zákazníkovi zapůjčt funkční přepěťovou ochranu stejného typu.

Technické poradenství provádí a servis zajišťuje firma:

Ing. Vladimír Brok

Obchodní a technické informace:

Pevná linka: (+420) 484 351 351
Mobil:  (+420) 604 489 036
E-mail:  This email address is being protected from spambots. You need JavaScript enabled to view it.
Web:   www.prepeti.cz 

Výroba a servis:
Jiráskovo nábřeží 717/61
468 22 Železný Brod

Doporučená koncová cena bez 21% DPH: viz ceník.
Množstevní rabaty jsou stanoveny dle obchodních podmínek.

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