HLSA7-850/2+1 IT

Article number: 27 590
  • 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 IT power supply systems.
  • The products consist of varistors with big discharge ability in the combination with gas discharge tube they ensure zero leakage current in the PE conductor.
  • Installed at the boundaries of zones LPZ 0 – LPZ 1 and higher, closest to where the overhead line enters the building i.e. in the main distribution boards.
  • Suitable for objects with considerable levels of protection LPL III and LPL IV.
  • S indication specifies a version with remote monitoring.
pcs
Inquire
Test class according to EN 61643-11:2012 (IEC 61643-11:2011) T1, T2
System IT
Number of poles
Nominal line voltage UN 720 V
Maximum continuous operating voltage AC UC 850 V
Maximum discharge current (8/20) L/PE Imax 50 kA
Impulse discharge current for class I test (10/350) L/CP Iimp 7 kA
Charge (L/CP) Q 3.5 As
Specific energy for class I test (L/CP) W/R 12.25 kJ/Ω
Impulse discharge current for class I test (10/350) CP/PE Iimp 25 kA
Charge (CP/PE) Q 12.5 As
Specific energy for class I test (CP/PE) W/R 156 kJ/Ω
Total discharge current (10/350) L1+L2+CP->PE ITotal 21 kA
Total discharge current (8/20) L1+L2+CP->PE ITotal 50 kA
Nominal discharge current for class II test (8/20) L/PE In 25 kA
Nominal discharge current for class II test (8/20) CP/PE In 30 kA
Voltage protection level at In Up < 3.3 kV
Temporary overvoltage test (TOV) for tT = 5 s (L/CP) UT 1 045 V
Temporary overvoltage test (TOV) for tT = 0.2 s (L/PE) UT 2 000 V
Response time (L/CP) tA < 25 ns
Response time (CP/PE) tA < 100 ns
Maximal back-up fuse 160 A gL/gG
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
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 4, 7
Operating position Any
Signalling at the device Optic
Importance of local signaling OK – clear target
FAULT – red target
Remote signalling No
Modular design No
Lifetime > 100 000 h
QUICK CONTACT
Quick contact
Ing. Aneta Sčebelová
 +420 494 942 314