HSA-275/1+1 M S (Surge Arrester) : TYPE 2+3, CLASS II+III , 2 Pole


HSA-2751+1 M S (Hakel Surge Arrester) of the „G-Line“ range  is a surge arrester according to EN 61643-11:2012 (IEC 61643-11:2011) consisting of high energy varistors. Its parameters enable its use in complex circumstances. The device is to be installed on the interface of LPZ 1 – LPZ 2 and higher zones according to standard EN 62305:2011 (IEC 62305:2010), i.e. into subsidiary switchboards and control boxes.

Dimension drawing
Internal wiring diagram
Installation diagram
Test class according to EN 61643-11:2012 (IEC 61643-11)TYPE 2+3, CLASS II+III
Network typeTN-S, TT
Maximum continuous operating voltageUc275 V AC / 350 V DC
Maximum discharge currentImax50 kA
Nominal discharge current for class II test (8/20)In20 kA
Open circuit voltageUoc6 kV
Total discharge current (8/20 µs) L+N->PEI total50 kA
Voltage protection levelU p< 1,25 kV
Voltage protection level at U OCUp< 850 V
Impulse discharge current for class I test (10/350) N/PEIimp20 kA
Temporary overvoltage (TOV) L/NU T337 V/5 s
Temporary overvoltage (TOV) N/PEU T1200 V/0,2 s
Response time L/NtA< 25 ns
Response time N/PEtA< 100 ns
Max. back-up fuse160 A gL/gG
Short-circuit withstand capability 160 A gL/gGISCCR60 kA rms
LPZJanuary 3, 2019
Housing materialPolyamid PA6, UL94 V-0
Degree of protection of enclosureIP20
Operating temperatureϑ-40 °C ... +70 °C
Cross-section of the connected conductors (at tightening moment of clamps 3 Nm)25 mm 2  (solid)
16 mm 2  (wire)
Method of assemblyDIN rail 35 mm / any
Failure signalisation (S)optical function signalization target clear – ok / optical function signalization target red - fault
Potential free signal contact (S) (recommended cross-section of remote monitoring max.1 mm 2 )AC: 250 V / 1,5 A, DC: 250 V / 0,1 A
Lifetimemin. 100 000 h
Weightm179 g
Article number27 091

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