Iskra Zascite

NMH2-TC SeriesDATA/SIGNAL LINES PROTECTIONIEC category / EN type: C1/C2/C3 (IEC 61643-21)Design:Compact housing 12 mmMode of protection:Longitudinal, TransverseCoarse Protection:3 terminal GDTAvailable voltages:5, 12, 15, 24, 30, 48, 60, 110V DCFreq:3-5 MHz (see specification sheet)Surge Discharge Ratings: I n:10kA 8/20µs, I max: 20kA 8/20µsSeries load current: 0.8AEnclosure:DIN 43880 2/3TE, DIN rail mountTerminals:Multi-strand to 4mm 2Like the NMH-TC series, the NMH2-TC provides the same level of protection but in a compact enclosure which canprovide protection to two independent circuits (pairs). A number of protection voltages are available to ensure theuser is able to select the closest clamping voltage to the normal signal operation of the equipment being protected.Technical characteristicsTypeProtection constructionNumber of protected pairsNominal operating voltageMax. continuous operating voltageRated spark overvoltageUnUc(a/b-PG)(a-b)Rated operating current at 25oCI LNominal discharge current (8/20µs) I nMax. discharge current (8/20µs) ImaxResidual voltage at 5 kA (8/20µs) (line-line)Response time of overvoltage protection t AThermal protectionInsulation resistance of the protectionSerial resistance RTransverse capacitance CLimit frequency f GTerminal cross sectionOperating temperatureDegree of protectionHousing materialDimensions DIN 43880Mounting EN 60715Ordering code5V5V DC6V DC7 - 10V7 - 10V0.8A10kA20kA< 22V< 1ns12V12V DC15V DC16 - 21V16 - 21V0.8A10kA20kA< 42V< 1ns15V15V DC18V DC20 - 24V20 - 24V0.8A10kA20kA< 48V< 1nsNMH2-TC24V 30VProtective module2 (4 conductors)24V DC28V DC30 - 36V30 - 36V0.8A10kA20kA< 70V< 1ns30V DC33V DC35 - 43V35 - 43V0.8A10kA20kA< 80V< 1ns48V48V DC52V DC55 - 68V55 - 68V0.8A10kA20kA< 140V< 1ns60V60V DC64V DC67 - 85V67 - 85V0.8A10kA20kA< 160V< 1nsThermo-clip≥ 6K Ω ≥ 15MΩ≥ 18M Ω ≥ 28M Ω ≥ 33M Ω ≥ 52MΩ≥ 64MΩ< 0.5Ω< 0.5Ω< 0.5Ω< 0.5Ω< 0.5Ω< 0.5Ω< 0.5Ω500pF 500pF 500pF 500pF 500pF 500pF 500pF3MHz 3MHz 3MHz 3MHz 3MHz 3MHz 3MHzMulti-strand to 4 mm2- 40oC ... + 80oCIP 20Thermoplastic; gray, extinguishing degree V-O12mmOn a 35mm DIN rail707 202 707 203 707 204 707 205 707 206 707 207 707 208110 V110V DC170V DC184 - 264V184 - 264V0.8A10kA20kA< 450V< 1ns≥ 170M Ω< 0.5Ω250pF5Mhz707 201Dimensional drawingsConnection diagram65R8912Legend:GDTRDBLPGgas discharge tuberesistordiode blockcoilprotective groundingPGcdabLINEGDT GDTPGLLRLLRMOV MOVDBDBa’b’EQUIPc’d’www.iskrazascite.si19