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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

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.

Select another reference:

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