Type 2 AC surge protector - 3-phase

DS74R-120/G
Part Number: 491612

-Re-inforced Type 2 AC surge protector

  • In : 30 kA
  • Imax : 70 kA
  • Pluggable module by phase
  • Remote signaling option
  • IEC 61643-11, EN 61643-11 and UL1449 ed.5 compliance

DS70R type 2 AC surge protector are used mainly for primary protection of single and three-phase networks at the main electrical panel. They provide common-mode protection and are available in one-phase, single-phase, 3-phase and 3-phase+Neutral. This SPD is based on association of high energy varistors equipped with thermal disconnector and failure indicator, to comply with standards. The DS70R surge protectors are designed to be used in a multipolar configuration to protect single-phase, 3-phase or 3-phase+N AC networks. Each pole of the SPD is connected between Line(s) and PE and Neutral and PE.

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SPD type
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) Charasteristics - 5 sec.
Without disconnection
UT 180 Vac withstand
Temporary Over Voltage (TOV) Charasteristics - 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 < 1 mA
Follow current
If None
Nominal discharge current
15 x 8/20 µs impulses
In 30 kA
Max. discharge current
max. withstand @ 8/20 µs by pole
Imax 70 kA
Total Maximum discharge current
max. total withstand @ 8/20 µs
Imax Total 70 kA
Connection mode(s)
L/N and N/PE
Protection mode(s)
Common/Differential mode
Residuel voltage at 5 kA
@ 5 kA (8/20µs)
Up-5kA 0.6 kV
Protection level L/N
@ In (8/20µs)
Up L/N 1 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
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
2 mechanical indicators by pole
Spare module(s)
DSM70R-120 + DSM70G-600
Remote signaling of disconnection
option DS74RS-120/G : output on changeover contact
Dimensions
See diagram
Weight
0.368 kg
Standards compliance
IEC 61643-11 / EN 61643-11 / UL1449 ed.5
Certification
UL Recognized
Thermal disconnector
Internal
Installation ground fault breaker
Type 'S' or delayed
Fuses
100 A min. - 125 A max. - Fuses type gG