HSA PV 800/2 M S

Article number: 27 257
  • Surge arresters type T2 intended for photovoltaic systems (PV) at U or Y connection.
  • The advantage of the Y connection versus the U connection is the resistance to the earth connection of the working conductors and zero residual (leakage) current through the PE conductor.
  • Particular varistor sectors, connected between the terminals L+, L- and PE are equipped with internal disconnectors, which are activated when the varistors fail (overheat) and they are able to interrupt the DC current.
  • Special construction of the internal disconnector allows installation without a back-up fuse.
  • They are installed on the DC side in PV applications without an external LPS or with an external LPS, where the sufficient distance "s" is observed.
  • Suitable for all LPL levels.
  • Ensure the equipotential bonding of positive and negative busbars of PV systems and the elimination of transient overvoltage that originates during the atmospheric discharges or switching processes.
  • M indication specifies a type of construction with removable module.
  • S indication specifies a version with remote monitoring.
Test class according to EN 61643-11:2012 and EN 61643-31:2019 T2
System DC
PV system type Ungrounded
SPD connection type U
Maximum continuous operating voltage (+/-) UCPV 800 V DC
Maximum continuous operating voltage (±/PE) UCPV 400 V DC
Max. voltage of PV generator UOCSTC ≤ UCPV / 1.2 UOCSTC 665 V
Short-circuit current rating ISCPV 10 kA
Total discharge current (8/20) ±->PE ITotal 40 kA
Maximum discharge current (8/20) Imax 40 kA
Nominal discharge current for class II test (8/20) In 20 kA
Voltage protection level at In (+/-) Up < 3.3 kV
Voltage protection level at In (±/PE) Up < 1.65 kV
Response time (+/-) tA < 25 ns
Response time (±/PE) tA < 25 ns
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 according to IEC 61643-32:2017 (doesn't apply to „V“ connection) for T2 S 2.5 mm² (L+, L-)
6 mm² (PE)
Clamp fastening range (solid conductor) 2.5 ÷ 35 mm2
Clamp fastening range (stranded conductor) 2.5 ÷ 25 mm2
Tightening moment 4
Installation On DIN rail 35 mm
Modular width 2
Operating position Any
Product placement environment Internal
SPD failure mode OCFM
Signalling at the device Optic
Importance of local signaling OK – green 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 Yes
Article number of the varistor spare module 27 259
Lifetime > 100 000 h
Quick contact
Ing. Aneta Sčebelová
 +420 494 942 314