LEGRAND 003973 003973 LEGRAND DESC SOBRET PROT 4P 12KA TYPE2 View larger
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003973 LEGRAND DESC SOBRET PROT 4P 12KA TYPE2

003973

003973

LEGRAND

1 Pcs.

DESC SOBRET PROT 4P 12KA TYPE2 Self-protected SPD - for secondary distribution board - T2 -Imax 12 kA/pole -3P+N left Surge Arrester - Protected Type 2 - 4P

Automation > Surge protection device for power supply systems
MOTOR CIRCUIT BREAKERS

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  • Pack (number of units)1
  • Volume (dm3)1.005
  • Weight (g)408.00
Product characteristics
Protection for secondary distribution boards
  • Protection of sensitive equipment.
  • With plug-in modules and status indicators:
    • Green: SPD operational
    • Red: plug-in module need to be replaced
  • In: 10 kA/pole - Uc: 275 V~
  • Earthing systems: TT, TNS.
  • Cat. No. 0 039 71: SPD with Y connection both incoming and outgoing terminals at the top of the SPD, providing better protection against overvoltages
T2 self protected SPDs - Imax 12 kA/pole
  • 1P+N and 3P+N: L-N and N-PE protection modes (common and differential modes), the N pole being protected by encapsulated spark gaps. Also called 1+1 and 3+1.
  • Number of poles : 3P+N
  • Neutral position : Left
  • Integrated protection : Isc ? 10 kA
  • Number of modules : 6
General characteristics
Class II (T2) low voltage SPDs with integrated protection
  • SPDs with integrated protection against overload currents and short-circuit currents
  • SPDs compliant with EN/IEC 61643-11 standards
  • For 230/400 VA power networks (50/60 Hz)

ETIM for 003973 Earthing, lightning and surge protection (EC000941)
Feature Name Feature Value
System configuration TN-C-S (EF009933) Yes
Degree of protection (IP) (EF005474) IP20
Nominal voltage AC (EF004220) 400 V
System configuration TN-S (EF009930) No
Construction size (EF002566) 6 modular spacing
System configuration other (EF009932) No
Mounting method (EF000003) DIN rail (top hat rail) 35 mm
System configuration TT (EF009931) Yes
Signalling at the device (EF004241) Optic
Number of conductors (without earthing) (EF001148) 4
Voltage protection level (EF003525) 1.2 kV
System configuration IT (EF009927) No
System configuration TN-C (EF009929) Yes
System configuration TN (EF009928) Yes
Max. continuous voltage AC (EF004198) 275 V
Integrated backup fuse (EF008797) Yes
Voltage protection level L-N (EF004236) 1 kV
Nominal discharge surge current (8/20) (EF004214) 10 kA
Category type 2 (EF004230) Yes
With remote signalling contact (EF000422) No
Max. conductor cross section solid (solid, stranded) (EF008827) 25 mm²
Max. conductor cross section flexible (fine-strand) (EF008828) 16 mm²

Product Datasheet

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