The DS150E is a Heavy Duty Type 1 AC Surge Protector Device (SPD) designed to be connected at the entrance of the electrical installation. This SPD provides an efficient protection against direct and indirect effects and is particularly useful in a high lightning density area where the risk of heavy surge current or even direct strike is high (e.g. : buildings equipped with lightning rods).
The DS150E is a one-pole SPD and can be used in common mode (DS150Es connected between L/PE and N/PE) or common and differential mode (DS150Es connected between L/N and 1 x DS100EG between N/PE).
This SPD is designed to withstand a 15 kA lightning current (10/350 μs impulse). It is based on «multi-MOV» diagram : this technology allows a very discharge capability and the best behaviour possible on AC network (no follow current).
To meet standards, the DS150E includes a thermal disconnection mechanism, fault indicator and an internal microswitch for remote signaling.
The SPD is DIN rail compatible and is featured with a double terminal for line wire to allow improved connection to the AC network.


Technical Datasheet DS154E-300, DS154E-300/G and DS154E-400
Model | DS154E-300 | DS154E-300/G | DS154E-400 |
SPD type following IEC test | 1 | 1 | 1 |
Network | 230/400 Vac | 230/400 Vac | 230/4000 Vac |
Connection mode | L-G, N-G | L-N, N-G | L-G, N-G |
AC system | TT-TN | TT-TN | IT |
Max. operating voltage (Uc) | 300 Vac | 300 Vac | 440 Vac |
TOV withstand (UT) | 300 Vac | 300 Vac | 400 Vac |
Operating current (Ic) Continious current at Uc |
< 2mA | < 2mA | < 2mA |
Follow current (If) | None | None | None |
Nominal discharge current (In) 15 x 8/20 μs impulses |
70 kA | 70 kA | 60 kA |
Max. discharge current (Imax) max. withstand @ 8/20 μs by pole |
140 kA | 140 kA | 140 kA |
Impulse current by pole (limp) max. withstand 10/350µs by pole |
15 kA | 15 kA | 15 kA |
Total lightning current (Itotal) max. total withstand @ 10/350μs |
60 kA | 50 kA | 60 kA |
Residual voltage (at Iimp) Ures | 0.9 kV | 0.9 kV | 1.5 kV |
Admissible short-circuit current (lsccr) | 25000 A | 25000 A | 25000 A |
Associated disconnection devices | |||
Thermal disconnector | internal | ||
Fuses | Fuses type gG - 125 A max. (see Note 1) | ||
Installation ground fault breaker | Type «S» or delayed | ||
Mechanical characteristics | |||
Dimensions | See diagram | ||
Connection to Network | By screw terminals: 6-35mm²/ by bus | ||
Disconnection indicator | 3 mechanical indicator | ||
Remote signaling of disconnection | output on changeover contact | ||
Mounting | Symmetrical rail 35 mm (EN60715) | ||
Housing material | Thermoplastic UL94-V0 | ||
Operating temperature | -40 / +85 °C | ||
Protection rating | IP20 | ||
Housing material | Thermoplastic PEI UL94-5VA | ||
Standards | |||
NF EN 61643-11 France | Parafoudre Basse Tension - Essais Classe I et II | ||
IEC 61643-1 International | Low Voltage SPD - Test Class I and II | ||
EN 61643-11 Europe | Low Voltage SPD - Test Class I and II | ||
UL1449 ed.2 USA | Low Voltage TVSS |