Monitoring Relays Surge Arresters for Dupline® and Smarthouse® systems Type DSB51XXDP • Surge arrester for 2-wires communication buses • Designed for Dupline®and Smarthouse® • Dual technology with GDT and tranzorb • 15V nominal voltage • 20kA discharge current • DIN-rail mounting • Replaceable plug in module Product Description Ordering Key DSB 51 X X DP DSB51XXS is a surge pro- tectingdevicethathas beendesignedfor2 wires communication buses at 15Vspecifically for Dupline® and Smarthouse® systems. Effectively pro- tects allthesystem deviceswhich are normally installedatlongdistances in these type of systems. In order to provide sufficient protectionitisnecessary Type Selection to install one device at each end of the communi- cation line when the dis- tance is bigger than 15m. The circuittopology con- sists of multistage protec- tion providing both com- mon and differential mode protection. The construc- tion isDINrailmounting and the cartridge is replaceable. Mounting din Surge Arrester Type Item number Output Network Serial Code DescriptionNominal voltage of the system Output relayCartridge DSB51XXDP Surge arrester for Dupline® and Smarthouse®15VNoYes General Specifications Nominal operating voltageUn 15VDC Max. continuous oper. voltage Uc 18VDC Rated spark over voltage (SG-PG)184-276V (a-b), (a, b-SG)20-24V Nominal discharge current In (8/20usec) 10kA Max discharge currentImax (8/20usec) 20kA Rate operating current @ 25°C IL 1A Transverse capacitanceC (a, b), (a, b-PG) 50pF (SH-PG)5pF Insulation resistance of the protection (a, b), (a, b-PG) ≥15Mohm (SH-PG)1Gohm/100V Series resistance 1.6ohm ÷ 2ohm Protection distance 10 m (suggested value) Coarse protection3 terminal GDT Mode of protectionLongitudinal, Transverse Operating temperature-40 to +80 °C Protection degreeIP 20 Residual voltage @ 5kA (8/20usec) <48V (line-line) Response time of overload protectionta (a, b-SG) <1ns (SG-PG)100nsec Limit frequency30MHz Housing materialThermoplastic gray extinguishing degree V-O Terminal cross sectionMulti-strand to 4mm2 Mounting EN 60715 On a 35mm DIN rail Design Replaceable plug-in module DimensionsH90 x L12 x P71.5mm CE Marking Yes Specifications are subject to change without notice. Pictures are just an example. For special features and/or customization, please ask to our sales network. REV0 181113 1
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