HSA-720/3+1 IT
Article number: 27 664- Surge arresters type T2 ensure the equipotential bonding 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 with gas discharge tube, which ensures zero leakage current in the PE conductor.
- Installed at the boundaries of zones LPZ 1 – LPZ 2 into subsiduary switchboards and control panels.
- S indication specifies a version with remote monitoring.
Test class according to EN 61643-11:2012 (IEC 61643-11:2011) | T2 | |
System | IT | |
Number of poles | 4 | |
Nominal line voltage | UN | 600 V |
Maximum continuous operating voltage AC | UC | 720 V |
Maximum discharge current (8/20) L/CP | Imax | 40 kA |
Nominal discharge current for class II test (8/20) L/CP | In | 15 kA |
Open circuit voltage of the combination wave generator | UOC | 6 kV |
Total discharge current (8/20) L1+L2+L3+CP->PE | ITotal | 50 kA |
Voltage protection level at In (CP/PE) | Up | < 1.5 kV |
Voltage protection level at In (L/CP) | Up | < 2.6 kV |
Voltage protection level at UOC (L/CP) | Up | < 2 kV |
Temporary overvoltage test (TOV) for tT = 5 s (L/CP) | UT | 875 V |
Temporary overvoltage test (TOV) for tT = 0.2 s (L/PE) | UT | 1 860 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 | LPZ 1-2, LPZ 2-3 | |
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 60364-5-53:2022 (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 | |
Operating position | Any | |
Signalling at the device | Optic | |
Importance of local signaling |
OK – clear target FAULT – red target |
|
Remote signalling | No | |
Pluggable version | No | |
Lifetime | > 100 000 h |