Type 2 AC surge protector - 3-phase+N

DS44-385
Part Number 461202
DS44-385
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  • Type 2 AC Multipolar surge protector
  • In : 20 kA
  • Imax total : 160 kA
  • Pluggable module for each phase
  • Remote signaling option
  • NF 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.

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SPD type
IEC

2

Network

230/400 V 3-phase+N

AC system

TNS

Nominal line voltage
Un

230 Vac

Max. AC operating voltage
Uc

385 Vac

Temporary Over Voltage (TOV) Characteristics - 5 sec.
Without disconnection
UT

335 Vac withstand

Temporary Over Voltage (TOV) Characteristics - 120 mn
Without disconnection or with safety disconnection
UT

440 Vac disconnection

Residual Current
Leakage current to Ground
Ipe

< 1 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

Total Maximum discharge current
max. total withstand @ 8/20 µs
Imax Total

160 kA

Connection mode(s)

L/PE and N/PE

Protection level
@ In (8/20µs)
Up

1.8 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

1 mechanical indicator by pole

Spare module(s)

DSM40-385

Remote signaling of disconnection

option DS44S-385 : output on changeover contact

Dimensions

See diagram

Weight

0.370 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

Fuses type gG - 50 A