D9520S G.M. International s.r.l.
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D9520S

  1. Products
  2. Surge Arrester
  3. Surge protection for I/O signals and Signaling
D9520S
SIL 3 Surge Protective Device for Signal System Model D9520S

D9520S 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. It consist of a protective plug and a base element. 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.
  • Signal not interrupted during maintenance work, thanks to impedance neutral insertion and removal of protective plug.
  • High Density, 6.2 mm per channel.
  • HART compatible.

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STATUS

 
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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 43 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 100 mm, Height 105.8 mm.

Data Sheet


Datasheet of D9520 ( EN )

Instruction Manual


Instruction Manual D9520S ( 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 R008 Analisys for SIL Application D9510S, D9520S ( EN ) International GM 17/11-006 R008 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 D9520S_size

Connections