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

DS253VG-120
Part Number 3959
DS253VG-120
  • 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
Contact Us
The 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 DS250VG is one-pole SPD and can be used in common mode or common and differential mode. DS250VG AC surge protectors are designed to be connected in multi-pole configuration to protect single-phase, 3-phase and 3-phase+Neutral AC networks, sometimes associated with a dedicated N/PE SPD.
SPD type
IEC

1+2+3
Network

120/208 V 3-phase
AC system

TNC
Nominal line voltage
 Un

120 Vac
Max. AC operating voltage
Uc

150 Vac
Max. load current
if series connection
 IL

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

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

230 Vac 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

75 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/PE
Protection mode(s)

Common mode
Residual voltage
@ In (8/20 µs)
 Up-in

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

1 kV
Admissible short-circuit current
 Isccr

50 000 A
Technology

VG Technology (MOV+GSG)
SPD configuration

3-phase
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
Certification

UL Recognized
Thermal disconnector

Internal
Installation ground fault breaker

Type 'S' or delayed
Back-up protection device

Fuse assembly: SFD1-25-30S / or Fuses Type gG 315 A