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Surge Protection Devices → Power Supply Systems → Class B+C (Class I+II) Surge Arresters

Class B+C (Class I+II) Surge Arresters

Class B+C (Class I+II) Surge Arresters-Class B+C (Class I+II) Surge Arresters

Sipariş No : Class B+C (Class I+II) Surge Arresters

The VP range of products protect electrical equipment and installations against transient overvoltage that may arise in the electrical supply. Besides, the VP range can be classified into 3 different types (C, B, B+C) which provide the highest protection level in order to prevent damages in the electrical equipment and financial losses

Class B+C (Class I+II) Surge Arresters

The VP range of products protect electrical equipment and installations against transient overvoltage that may arise in the electrical supply. Besides, the VP range can be classified into 3 different types (C, B, B+C) which provide the highest protection level in order to prevent damages in the electrical equipment and financial losses
 
  • Compact equipments for all distribution systems.
  • High discharge capacity via "Spark gap" technology.
  • With thermal separation device.
  • Visual indication of a fault in the equipment.
  • Remote signalling of the protection status.
  • Plug-in protection modules which facilitate maintenance
 
Technical Characteristics
 
Code 41631 41632 41633 41636 41637 41638 41639 41640
Model B+C60 255/NPE* B+C60 275/1* B+C60 275/1+NPE** B+C60 275/2** B+C60 275/2+NPE B+C60 275/3 B+C60 275/4 B+C60 275/3+NPE
According to IEC 61643-1   (Class) Class I+II Class I+II Class I+II Class I+II Class I+II Class I+II Class I+II Class I+II
Type of network TT TN-S TT/TN-S TN-S TT/TN-S TN-S TN-S TT/TN-S
Electrical line - 1P+NPE (TN-C) 1P+N +PE(TT) 1P+N+PE (TN-S)
2P+NPE (TN-C)		 2P+N+PE (TT) 2P+N+PE (TN-S)
3P+PE (TN-S)
3P+NPE (TN-C)		 3P+N+PE (TN-S) 3P+N+PE (TT)
3P+PE (TT)
Nominal voltage Un (Vac) 230 Vac 230 Vac 230 Vac 230 Vac 230 Vac 230 Vac 230 Vac 230 Vac
Maximum continuous operating   voltage Uc (Vac) 255Vac 275Vac 275Vac 275Vac 275Vac 275Vac 275Vac 275Vac
Nominal discharge current   (8/20 ?s) In   (kA) 30 kA 30 kA 30 kA 30 kA 30 kA 30 kA 30 kA 30 kA
Maximum discharge current   (8/20 ?s) Imax   (kA) 60 kA 60 kA 60 kA 60 kA 60 kA 60 kA 60 kA 60 kA
Protection level Up (kV) @ 30 kA < 1,5 kV < 1,5 kV < 1,5 kV < 1,5 kV < 1,5 kV < 1,5 kV < 1,5 kV < 1,5 kV
Response time ta (ns) < 25 ns < 25 ns < 25 ns < 25 ns < 25 ns < 25 ns < 25 ns < 25 ns
Maximum back-up fuse (A   gL/gG) 125 125 125 125 125 125 125 125
Nº Modules 4 4 2 2 1 1 1 1

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