Innovative surge protection element with two protection levels. The protection cascade combines a high discharge capacity with a particularly short response time, resulting in a low protection voltage. Compared to conventional KNX surge arresters, this provides up to 20 times better protection for the connected KNX devices.
NEW! Very low protection level of only 220V / 370 V (approx. 1/4 compared to conventional single-stage arresters)
NEW! Fast response from 40 ps (approx. 1,000 times faster than conventional single-stage arresters)
NEW! Combination of two stages with a total of five protection and flashover paths for optimum arresters
NEW! PE connection with very low contact resistance for uncut and low-impedance connection with 2.5 mm² to lightning equipotential bonding
NEW! Includes two terminals each rt/sw and ge/ws for use with KNX-TP or KNX auxiliary voltage
NEW! Now also available as a SparPack or SuperSparPack with addition (one piece for five pieces or two pieces for 10 pieces)
Suitable for protection of Timberwolf Server, Loxone Miniserver, KNX power supply, KNX line amplifier, KNX line coupler, KNX area coupler, KNX USB interface, KNXnet/IP Tunneling IP Interface and KNXnet/IP Router and all KNX devices. DIN / IEC 61643certified lightning and surge protection system, tested for use in KNX-TP bus systems.
In the video linked below, we explain this protection module for KNX-TP and KNX auxiliary voltage and offer you background knowledge on overvoltages and protection systems. You can also jump to these chapters by marking YouTube.
Note: The action referred to in the video was in summer 2018 and is no longer active. The technical information is unaffected.
The capacitive load of the KNX bus by this surge arrester is 1 nF, which corresponds approximately to the capacitive load of 10 m bus line.
Surge arrester C2 for the KNX bus system with two-stage arrester system for optimum device protection.
This surge arrester has been certified for 1,000 amperes (8/20 µs) in pulse category C2, fast rising edge.
The two-stage BlitzART protection system is a cascaded protection consisting of a powerful and a fast surge arrester. This cascading improves the achievable equipment protection by about twenty times compared to conventional single-stage surge arresters.
This KNX surge arrester of category C2 (comparable to Type 3) according to IEC 61643-21 is intended for installation in distribution cabinets and junction boxes in dry residential and business premises, control cabinets in industry and automation systems.It serves as a surge arrester between electrical conductors of the KNX bus system and the equipotential bonding rail in the event of direct and near lightning strikes and discharges the partial lightning current into the earthing system.We recommend combining it with a surge arrester for energy networks Type 1 and Type 2 and using several of these KNX BlitzART modules in the KNX system.
This module has no functional direction, the connected bus lines and devices are equally protected on both sides of the surge protection module. When the bus signal is passed through the module, the reaction is slightly faster, we recommend connecting the more sensitive KNX devices on the side with the shorter bus line.
Notes on using other crimping cable lugs: Instead of the crimping cable lug supplied, you can also use other crimping cable lugs if you want to connect with a larger cross-section or want to use a solid conductor. Pay attention to the hole for M3. Crimping cable lugs with 4 and 6 mm² are available commercially for this purpose. Please ensure that you use the correct crimping pliers for the respective crimping cable lug.
<h1 style="box-sizing: border-box; margin-top: 0px; margin-bottom: 0.5rem; line-height: 1.1; font-size: 1.8rem; font-family: Custom-Font, Lato, sans-serif; letter-spacing: 0.5px; background-color: rgb(255, 255, 255);"><span style="font-size:24px;"><span style="box-sizing: border-box; color: rgb(85, 85, 85);"><span style="box-sizing: border-box;">SCOPE OF DELIVERY</span></span></span></h1> <p style="box-sizing: border-box;"><br /><span style="box-sizing: border-box; font-weight: bolder;">1 x Art-No: 489:</span> Surge arrester for KNX-TP and auxiliary voltage - 1000 Amp (Type 3)</p> <p style="box-sizing: border-box;"> </p> <ul> <li><span style="color:#0d47a1;"><strong>Execution:</strong></span> Module with open REG housing</li> <li><strong><span style="color:#0d47a1;">For mounting on DIN top-hat rail:</span></strong> Ready mounted with base for top hat rail</li> <li><strong><span style="color:#0d47a1;">Connection terminals:</span></strong> TWO sets of terminals for KNX-TP as well as KNX auxiliary voltage (two pairs each of rt/sw and ge/ws bus terminals)</li> <li><strong><span style="color:#0d47a1;">PE connection:</span></strong> Pre-assembled with washers, spring lockwasher, nut and crimp connector for 2.5 mmu00b2.</li> <li><strong><span style="color:#0d47a1;">Number of pieces according to order, please also note our SparPacks and SuperSparpack</span></strong></li></ul>