Compact 1-phase Type 2 (or 3) surge protector - 120 V -Pluggable
DS240-120/G
Part Number: 311621
- Compact single-phase Type 2 surge protector
- In : 20 kA
- Imax : 40 kA
- Common/Differential mode
- Pluggable module
- Remote signaling option
- EN 61643-11, CEI 61643-11 compliance
- UL1449 ed.5

The DS240 Type 2 surge protectors are compact devices designed to protect single phase networks at the main switchboard. They provide a common or common/differential mode protection.
This SPD is based on high energy varistor equipped with thermal disconnectors and failure indicator to comply with standards. The DS240 is DIN rail compatible and is built with a plug-in module and fixed base, which allows an easy and fast maintenance.
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SPD type following IEC test |
2 |
Network |
120 V single-phase |
AC system |
TT-TN |
Nominal line voltage |
120 Vac |
Max. AC operating voltage L-N |
150 Vac |
Max. load current |
20 A |
Temporary Over Voltage (TOV) Charasteristics - 5 sec. without disconnection |
180 Vac withstand |
Temporary Over Voltage (TOV) Charasteristics - 120 mn without disconnection or with safety disconnection |
230 Vac disconnection |
Temporary Over Voltage N/PE (TOV HT) without disconnection or with safety disconnection |
1200 V/300A/200 ms withstand |
Residual Current Leakage current to Ground |
None |
Operating current Continious current at Uc |
0.5 mA |
Follow current |
None |
Nominal discharge current 15 x 8/20 µs impulses |
20 kA |
Max. discharge current max. withstand @ 8/20 µs by pole |
40 kA |
Total Maximal discharge current max. total withstand @ 8/20 µs |
40 kA |
Admissible short-circuit current |
10000 A |
Connection mode(s) |
L/N and N/PE |
Protection mode(s) |
Common/Differential mode |
Protection level @ In (8/20µs) |
0.9 kV |
Protection level L/N @ In (8/20µs) |
0.9 kV |
Protection level N/PE @ In (8/20µs) |
1.5 kV |
Protection level CM/DM @ In (8/20µs) |
1.5/0.9 kV |
Residuel voltage at 5 kA @ 5 kA (8/20µs) |
1.5/0.6 kV |
Technology | MOV |
SPD configuration | Single phase |
Connection to Network | by screw terminals: 1.5-10mm² (L/N) or 2.5-25mm² (PE) |
Format |
Plug-in modular box |
Mounting |
Symmetrical rail 35 mm (EN60715) |
Housing material | Thermoplastic UL94-V0 |
Operating temperature | -40/+85°C |
Protection rating | IP20 |
Failsafe behavior | Disconnection |
Disconnection indicator | 1 mechanical indicator |
Spare module(s) |
DSM240-120/G |
Remote signaling of disconnection |
Option DS240S-120/G : output on changeover contact |
Dimensions |
See diagram |
Certification |
UL / CSA /EAC |
Standards compliance |
IEC 61643-11 / EN 61643-11 / UL1449 4ed. |
Thermal disconnector | Internal |
Fuses |
Fuses type gG - 50 A |
Installation ground fault breaker | Type 'S' or delayed |