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Type 2 AC surge protector - 3-phase+N

DS44S-480
Part Number 33101421
DS44S-480
  • Type 2 AC Multipolar surge protector
  • In : 20 kA
  • Imax total : 160 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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Network
 277/480 V 3-phase+N
AC system
 TT-TN
Nominal line voltage
 Un 480 Vac
Max. AC operating voltage
Uc 530 Vac
Temporary Over Voltage (TOV) Characteristics - 5 sec.
Without disconnection
 UT 700 Vac withstand
Temporary Over Voltage (TOV) Characteristics - 120 mn
Without disconnection or with safety disconnection
 UT 920 Vac disconnection
Residual Current
Leakage current to Ground
 Ipe < 2 mA
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
Connection mode(s)
 L/PE and N/PE
Protection mode(s)
 Common mode
Protection level N/PE
@ In (8/20µs)
 Up N/PE 2.5 kV
Protection level L/PE
@ In (8/20µs)
 Up L/PE 2.5 kV
Admissible short-circuit current
 Isccr 25 000 A
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)
 DSM40-480
Remote signaling of disconnection
 Output on changeover contact
Weight
 0.405 kg
Certification
 UL
Thermal disconnector
 Internal
Installation ground fault breaker
 Type 'S' or delayed
Back-up protection device
Fuses type gG - 50 A