Type 2 AC surge protector - 3-phase

DS74R-120
Part Number 491602
DS74R-120
  • Discover our latest innovation : the DAC80-40-150
  • Re-inforced Type 2 AC Multipolar surge protector
  • In: 30 kA
  • Imax total: 280 kA
  • Pluggable module by phase
  • Remote signaling option
  • IEC 61643-11, EN 61643-11 compliance
  • UL1449 ed.5 appoved
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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

120/208 V 3-phase+N
AC system

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
Residual Current
Leakage current to Ground
 Ipe

< 4 mA
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

280 kA
Connection mode(s)

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

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

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

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

1 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
Remote signaling of disconnection

option DS74RS-120 : output on changeover contact
Dimensions

See diagram
Weight

0.443 kg
Standards compliance

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

CSA / UL
Thermal disconnector

Internal
Installation ground fault breaker

Type 'S' or delayed
Back-up protection device

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