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

DS254E-400
Part Number 3732
DS254E-400
  • Type 1 + 2 unipolar surge protector
  • Iimp total: 100 kA on 10/350µs impulse
  • Imax : 140 kA on 8/20µs impulse
  • Internal disconnections, status indicators
  • Remote signaling
  • IEC 61643-11, EN 61643-11 and UL1449 ed.5 compliance

The DS250E is an extreme duty Type 1+2 designed to protect the entrance of the electrical installation. They are used to protect biphase, 3-phase or 3-phase + neutral networks in common mode or in common and differential mode. The 'Multi-Varistor' technology used allows the best possible behavior for the LV network (no follow-on current). The DS250E 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

Network

230/400 V 3-phase+N

AC system

IT

Nominal line voltage
Un

230/400 Vac

Max. AC operating voltage
Uc

440 Vac

Max. load current
if series connection
IL

100 A

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

580 Vac withstand

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

770 Vac disconnection

Residual Current
Leakage current to Ground
Ipe

< 3 mA

Follow current
If

None

Nominal discharge current
15 x 8/20 µs impulses
In

50 kA

Max. discharge current
max. withstand @ 8/20 µs by pole
Imax

140 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

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

156 kJ/ohm

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

50 000 A

Technology

MOV

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

3 mechanical indicators by pole

Remote signaling of disconnection

Output on changeover contact

Dimensions

See diagram

Weight

0.1 kg

Standards compliance

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

Certification
Thermal disconnector

Internal

Installation ground fault breaker

Type 'S' or delayed

Back-up protection device

Fuse assembly: SFD1-25-40S / or Fuses Type gG 315 A