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Type 2 AC surge protector - 3-phase

DS74RS-320/G
Part Number 491932
  • Discover our latest innovation : the DAC80S-31-320
  • Re-inforced Type 2 AC surge protector
  • In : 30 kA
  • Imax : 70 kA
  • Pluggable module by phase
  • Remote signaling
  • IEC 61643-11, EN 61643-11 compliance
  • UL1449 ed.5 approved
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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
IEC

2
Network

230/400 V 3-phase
AC system

TT-TNS
Nominal line voltage
 Un

230 Vac
Max. AC operating voltage
Uc

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

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

440 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
Residual voltage at 5 kA
@ 5 kA (8/20µs)
 Up-5kA

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

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

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

1.1 kV
Admissible short-circuit current
 Isccr

25 000 A
Technology

MOV
SPD configuration

Single phase
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-320 + DSM70G-600
Remote signaling of disconnection

Output on changeover contact
Dimensions

See diagram
Weight

0.415 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
Back-up protection device

100 A min. - 125 A max. - Fuses type gG