View full size 
Surge Protector AC - unipolar 40Ka
More info
" Unipolar Type 2 AC surge protector to protect your system. "
DS40 type2 AC surge protector are used mainly for primary protection of single and 3- phase networks at the main electrical panel.
This SPD is based on high energy varistor equipped with thermal disconnector and failure indicator, to comply with standards.
Other models available on request, please contact us.
Technical Data
| Electrical characteristics | ||
SPD type follow test IEC 61643-11 | 2 | |
| Network | 277/480V | |
| Nominal line voltage | Un | 277 Vac |
| Max. AC operating voltage | Uc | 530 Vac |
Temporary Over Voltage (TOV) Charasteristics - 5 sec. without disconnection | UT | 700 Vac withstand |
Temporary Over Voltage (TOV) Charasteristics - 120 mn without disconnection or with safety disconnection | UT | 920 Vac disconnection |
Temporary Over Voltage N/PE (TOV HT) without disconnection or with safety disconnection | UT | - |
Operating current LeakAge current at Uc | Ic | < 1 mA |
| Follow current | If | None |
Nominal discharge current 15 x 8/20 µs impulses | In | 20 kA |
Max. discharge current max. withstand @ 8/20 µs by pole | Imax | 40 kA |
Total Maximal discharge current max. total withstand @ 8/20 µs | Imax Total | - |
| Admissible short-circuit current | Isccr | 25000 A |
| Connection mode | L/PE and N/PE | |
| Protection mode(s) | CM or DM | |
| Protection level | Up | 2.5 kV |
Protection level @In (8/20µs) and @ 6kV (1.2/50µs) | Up | 2.5 kV |
Protection level L/PE for multipolar surge protector | Up L/PE | - |
| Mechanical characteristics | ||
| Technology | MOV | |
| SPD configuration | 1-pole | |
| Connection to Network | By screw terminals: 2.5-25 mm² / by bus | |
| Format | Plug-in modular box | |
| Mounting | Symmetrical rail 35 mm (EN60715) | |
| Housing material | Thermoplastic UL94-V0 | |
| Operating temperature | -40/+85°C | |
| Protection rating | IP20 | |
| Outdoor application | No | |
| Failsafe behavior | Disconnection | |
| Disconnection indicator | 1 mechanical indicator | |
| Spare module | DSM40-480 | |
| Remote signaling of disconnection | option DS41S-480 : output on changeover contact | |
| Associated disconnection devices | ||
| Thermal disconnector | internal | |
| Installation ground fault breaker | Type `S` or delayed | |
| Fuses | Fuses Type gG - 50 A | |
| Standards compliance | ||
| Standards compliance | IEC 61643-11 / EN 61643-11 / NF EN 61643-11 / UL1449 ed.4 | |
| Certification | UL / CSA /GOST |
