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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
Certification

UL
Thermal disconnector

Internal
Installation ground fault breaker

Type 'S' or delayed
Back-up protection device

Fuses type gG - 50 A