D9420S G.M. International s.r.l.
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D9420S

  1. Products
  2. Surge Arrester
  3. Surge protection for I/O signals and Signaling
D9420S
SIL 3 Surge Protective Device for Signal System Model D9420S

D9420S provides two-stage surge protection for floating I/0 three wires signals of measurement and control and safety systems. With width of 6mm, it can be easily fitted into any marshalling cabinets or distribution cabinets. The SPD provides surge protection with 1.65Ω loop impedance, with disconnect knife on both signal paths for easy testing of the loop.

FEATURES

  • SIL 3 according to IEC 61508:2010.
  • Input from Zone 0 (Zone 20), installation in Zone 1 and 2.
  • Disconnection of signal circuit by disconnect knife.
  • Signaling without additional auxiliary power, thanks to the mechanical status indicator.
  • High Density, 6.2 mm per channel.
  • HART compatible.

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STATUS

 
   ACTIVE
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Technical Data


Supply
Nominal system voltage Un 24 V DC
Max continuous operating voltage Uc 30 V DC
Rated current 600 mA (40°C)

Protection
IEC test classification C1 / C2 / C3 / D1
Protection of signal types 0/4-20 mA HART, Digital I/O, World FIP, F&G
Nominal discharge current (In) (8/20) μs: 5 kA (core-core) 5 kA (core-ground) 5 kA (core-earth)
Impulse discharge current (Iimp) (10/350) μs: 0.5 kA (core-core) 0.5 kA (core-ground) 0.5 kA (core-earth)
Total discharge current (Itotal) (8/20) μs: 10kA
Max. total discharge current (Imax) (8/20) μs: 20kA (for one time)
Series resistance 1.65Ω ± 20%
Voltage protection level (Up) ≤ 150 V (C1 - 1 kV/500 A) core-core ≤ 275 V (C2 - 10 kV/5 kA) core-core ≤ 55 V (C3 - 100 A) core-core ≤ 750 V (C1 - 1 kV/500 A) core-ground ≤ 750 V (C2 - 10 kV/5 kA) core-ground ≤ 1.2 KV (C3 - 100 A) core-ground ≤ 80 V (C1 - 1 kV/500 A) core-earth ≤ 125 V (C2 - 10 kV/5 kA) core-earth ≤ 55 V (C3 - 100 A) core-earth
Response time tA ≤ 1 ns (core-core) ≤ 1 ns (core-ground) ≤ 100 ns (core-earth)

Environmental conditions

Operating temperature temperature limits –40 to + 85 °C, relative humidity 5% to 95%.

Mounting
Type EN/IEC60715 TH 35 DIN-Rail.
Weight about 60 g.
Connection screw terminal blocks to accommodate terminations up to 2.5 mm2 flexible.
Location installation in Safe Area or Zone 2 or Zone 1, Group IIC T4...T6.
Protection class IP20.
Dimensions Width 6.2 mm, Depth 83.5 mm, Height 105.8 mm.

Data Sheet


Datasheet of D9420 ( EN )

Instruction Manual


Instruction Manual D9420S ( EN )

Certifications


Type Description Area Number Issued by Issue Date
ATEX DEKRA ATEX D9410, D9420, D9510, D9520 Series English Certificate ( EN ) Europe BVS 18 ATEX E 018 X DEKRA 2022-07-12
IECEx DEKRA IECEx D9410, D9420, D9510, D9520 Series Certificate ( EN ) International IECEx BVS 18.0012X DEKRA 2022-07-18
SIL EXIDA GM 17/11-006 R007 Analisys for SIL Application D9410S, D9420S ( EN ) International GM 17/11-006 R007 EXIDA 2018-03-28

Declarations of Conformity


EU Declaration of Conformity for D9410, D9420, D9510, D9520 ( EN | IT )
EU Declaration of Conformity for RoHS, ASBESTOS. ( EN )

Dimensions


Image of D9420S_size

Connections