Type 1+2+3 AC surge protector - 3-phase+N

DS254VG-300/DE
Part Number 3304
  • Type 1+2+3 unipolar surge protector
  • 25 kA on 10/350µs impulse
  • Low voltage Up
  • Internal disconnection, status indicator and remote signaling
  • Optimized to TOV
  • IEC 61643-11 and UL1449 ed.5 compliance

The products of the range DS250VG is an extreme duty Type 1+2+3 AC surge protector device designed to protect at the entrance of the electrical installation. This SPD is particularly useful in a high lightning density area where the risk of heavy surge current or even direct strike is high (eg: buildings equipped with lightning rods). The `Spark gap + Varistor` technology allows a very low level of protection and an absence of following current. The DS250VG is mounted on a DIN Rail and has a double connection for the active conductor, which allows an optimized connection to the network.


SPD type
IEC

1+2+3

Network

230/400 V 3-phase+N

AC system

TT-TNS

Nominal line voltage
Un

230/400 Vac

Max. AC operating voltage
Uc

255 Vac

Max. load current
if series connection
IL

100 A

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 withstand

Temporary Over Voltage N/PE (TOV HT)
Without disconnection or with safety disconnection
UT

1200 V/300A/200 ms withstand

Residual Current
Leakage current to Ground
Ipe

None

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

Impulse current by pole
max. withstand 10/350µs by pole
Iimp

25 kA

Total lightning current
max. total withstand @ 10/350µs
Itotal

100 kA

Withstand on Combination waveform IEC 61643-11
Class III test: 1.2/50µs - 8/20µs
Uoc

20 kV

Withstand on overvoltages IEEE C62.41.1

20 kV

Specific energy by pole
max. withstand 10/350 µs
W/R

156 kJ/ohm

Connection mode(s)

L/N and N/PE

Protection mode(s)

Common/Differential mode

Residual voltage
@ In (8/20 µs)
Up-in

1.1 kV

Protection level L/N
@ In (8/20µs)
Up L/N

1.5 kV

Protection level L/PE
@ In (8/20µs)
Up L/PE

1.5 kV

Admissible short-circuit current
Isccr

50 000 A

Technology

VG Technology (MOV+GSG)

SPD configuration

3-phase+Neutral

Connection to Network

By screw terminals: 6-35mm² / by bus

Format

1-pole modular box assembled

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

Remote signaling of disconnection

Output on changeover contact

Dimensions

See diagram

Standards compliance

IEC 61643-11 / EN 61643-11 / UL1449 ed.5

Thermal disconnector

Internal

Installation ground fault breaker

Type 'S' or delayed

Back-up protection device

Fuse assembly: SFD1-25-31S / or Fuses Type gG 315 A