HSA-275 M S (Surge Arrester) : TYPE 2+3, CLASS II+III
HSA-275 M S
- Surge arresters type T2+T3 ensure the equipotential bonding and reduce switching, induced and residual overvoltage in LV power supply systems.
- The products consist of varistors with big discharge ability.
- In 1+1 and 3+1 configurations they are additionaly combined with a gas discharge tube, which ensures zero leakage current through the PE conductor.
- Installed at the boundaries of LPZ 1 – LPZ 3 into subsidiary switchboards and control panels.
- If the product contains two PE (or PEN) terminals, it must not be used as a PE (PEN) bridge.
- 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 (IEC 61643-11:2011) | T2, T3 | |
| System | TN | |
| Number of poles | 1 | |
| Rated operating AC voltage | UN | 230 V |
| Maximum continuous operating voltage AC | UC | 275 V |
| Maximum discharge current (8/20) | Imax | 50 kA |
| Nominal discharge current for class II test (8/20) | In | 20 kA |
| Open circuit voltage of the combination wave generator | UOC | 6 kV |
| Voltage protection level at In | Up | < 1.25 kV |
| Voltage protection level at UOC | Up | < 0.85 kV |
| Temporary overvoltage test (TOV) for tT = 5 s | UT | 337 V |
| Temporary overvoltage test (TOV) for tT = 120 min | UT | 440 V |
| Response time | tA | < 25 ns |
| Maximal back-up fuse | 160 A gL/gG | |
| Residual current | IPE | ≤ 450 µA |
| Short-circuit current rating at maximum back-up fuse | ISCCR | 60 kArms |
| Lightning protection zone | LPZ1, LPZ2, LPZ3 | |
| 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 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 | 1 | |
| 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 | Yes | |
| Article number of spare module | 27 086 | |
| Lifetime | > 100 000 h |