Type 2 AC surge protector - 3-phase+N

DS44S-120/G
Part Number 461632
DS44S-120/G
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  • Type 2 AC Multipolar surge protector
  • In : 20 kA
  • Imax total : 40 kA
  • Pluggable module for each phase
  • Remote signaling
  • EN 61643-11, IEC 61643-11 compliance
  • UL1449 ed.5
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used mainly for primary protection of single and 4- phase networks at the main electrical panel. They provide common-mode or common and differential mode. This SPD is based on high energy varistor equipped with thermal disconnector and failure indicator, to comply with standards. The DS40 surge protectors are designed to be used in a multipolar configuration to protect single-phase, 3-phase or 3-phase+Neutral AC networks.They are sometimes associated with dedicated N/PE surge protector based on gas tube technology.
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SPD type
IEC

2
Network

120/208 V 3-phase+N
AC system

TT-TNS
Nominal line voltage
 Un

120 Vac
Max. AC operating voltage
Uc

150 Vac
Temporary Over Voltage (TOV) Characteristics - 5 sec.
Without disconnection
 UT

180 Vac withstand
Temporary Over Voltage (TOV) Characteristics - 120 mn
Without disconnection or with safety disconnection
 UT

230 Vac disconnection
Temporary Over Voltage N/PE (TOV HT)
Without disconnection or with safety disconnection
 UT

1200 V/300A/200 ms withstand
Residual Current
Leakage current to Ground
 Ipe

None
Operating current
Continious current at Uc
 Ic

0.5 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 Maximum discharge current
max. total withstand @ 8/20 µs
Imax Total

40 kA
Connection mode(s)

L/N and N/PE
Protection mode(s)

Common/Differential mode
Residual voltage at 5 kA
@ 5 kA (8/20µs)
 Up-5kA

0.6 kV
Protection level L/N
@ In (8/20µs)
 Up L/N

0.9 kV
Protection level N/PE
@ In (8/20µs)
 Up N/PE

1.5 kV
Residual voltage at 10 kA
@ 8/20µs
 Up-10kA

0.7 kV
Admissible short-circuit current
 Isccr

25 000 A
Technology

MOV+GDT
SPD configuration

3-phase+Neutral
Connection to Network

By screw terminals: 2.5-25mm² / by bus
Format

Plug-in modular box
Mounting

Symmetrical rail 35 mm (EN 60715)
Housing material

Thermoplastic UL94 V-0
Operating temperature
 Tu

-40/+85°C
Protection rating

IP20
Failsafe mode

Disconnection from AC network
Disconnection indicator

1 mechanical indicator by pole
Spare module(s)

DSM40-120+DSM40G-600
Remote signaling of disconnection

Output on changeover contact
Dimensions

See diagram
Weight

0.316 kg
Standards compliance

IEC 61643-11 / EN 61643-11 / UL1449 ed.5
Certification

CSA / UL Listed
Thermal disconnector

Internal
Installation ground fault breaker

Type 'S' or delayed
Back-up protection device

Fuses type gG - 50 A