HLSA7-850 S

Article number: 10 618
  • Lightning impulse current and surge arresters type T1+T2 ensure the equipotential bonding, eliminate the effects of lightning current and reduce switching, induced and residual overvoltage in single-phase and three-phase power supply systems.
  • Suitable for objects and halls without the incidence of persons and indoor equipment.
  • Installed at the boundaries of LPZ 0 – LPZ 1 and higher zones, closest to where overhead line enters the building i.e. in the main distribution boards.
  • The products consist of varistors with big discharge ability.
  • Configurations 1+1 and 3+1 are additionally combined with a gas discharge tube which ensures zero leakage current through the PE conductor.
  • If the product contains two PE (or PEN) terminals, it must not be used as a PE (PEN) bridge.
  • S indication specifies a version with remote monitoring.
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Test class according to EN 61643-11:2012 (IEC 61643-11:2011) T1, T2
System TN
Number of poles
Rated operating AC voltage UN 720 V
Maximum continuous operating voltage AC UC 850 V
Maximum discharge current (8/20) Imax 50 kA
Impulse discharge current for class I test (10/350) Iimp 7 kA
Charge Q 3.5 As
Specific energy for class I test W/R 12.25 kJ/Ω
Nominal discharge current for class II test (8/20) In 25 kA
Open circuit voltage of the combination wave generator UOC 6 kV
Voltage protection level at In Up < 3.3 kV
Temporary overvoltage test (TOV) for tT = 5 s UT 1 045 V
Temporary overvoltage test (TOV) for tT = 120 min UT 1 372 V
Response time tA < 25 ns
Maximal back-up fuse 160 A gL/gG
Residual current IPE ≤ 600 µA
Short-circuit current rating at maximum back-up fuse ISCCR 60 kArms
Lightning protection zone LPZ0, LPZ1, LPZ2
Housing material Polyamid PA6, UL94 V-0
Degree of protection IP20
Operating temperature ϑ - 40 ÷ 70 °C
Humidity range RH 5 ÷ 95 %
Minimum cross-section of connected Cu conductors accord. to HD 60364-5-534:2016 (doesn't apply to „V“ connection) for T1 S 6 mm² (L, N)
16 mm² (PE, PEN)
Minimum cross-section of connected Cu conductors accord. to HD 60364-5-534:2016 (doesn't apply to „V“ connection) for T2 S 2.5 mm² (L, N)
6 mm² (PE, PEN)
Clamp fastening range (solid conductor) 1.5 ÷ 25 mm2
Clamp fastening range (stranded conductor) 1.5 ÷ 16 mm2
Tightening moment 3
Installation On DIN rail 35 mm
Modular width 3
Operating position Any
Product placement environment Internal
Signalling at the device Optic
Importance of local signaling OK – clear target
FAULT – red target
Remote signalling Yes
Potential free signal contact (S) (recommended cross-section of remote monitoring max. 1 mm2) AC: 250 V / 1.5 A, DC: 250 V / 0.1 A
Modular design No
Lifetime > 100 000 h
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Ing. Aneta Sčebelová
 +420 494 942 314