Type 2 AC surge protector - 3-phase

DS74RS-120
Part Number 491622
  • Re-inforced Type 2 AC Multipolar surge protector
  • In: 30 kA
  • Imax total: 280 kA
  • Pluggable module by phase
  • Remote signaling
  • 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
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
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 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
 Output on changeover contact
Dimensions
 See diagram
Weight
 0.54 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