General
Number of conductors (without earthing)	4
Nominal discharge surge current (8/20)	20 kA
Nominal voltage AC	415 V
Short-circuit breaking capacity (Isccr)	25 kA
Max. continuous voltage AC	275 V
Max. discharge surge current (8/20)	40 kA
Mounting method	DIN rail (top hat rail) 35 mm
Construction size	4 modular spacing
Max. PV-voltage	0 V
Voltage protection level	1.5 kV
Max. conductor cross section solid (solid, stranded)	35 mm²
Max. conductor cross section flexible (fine-strand)	25 mm²
Voltage protection level L-N	1.5 kV
Voltage protection level N-PE	1.5 kV
Signalling at the device	Optic
Degree of protection (IP)	IP20
System configuration DC
System configuration IT
System configuration TN
System configuration TN-C
System configuration TN-C-S
System configuration TN-S
System configuration TT
System configuration other
With remote signalling contact
Integrated backup fuse
Category type 2

Surge arrester 4P T2 TNS/TT backup fuse up to 315A In 20kA Imax 40kA. Surge arrester type 2 in 3+1 circuit, for protecting three-phase TT and TN-S systems with optical fault signal. Connections for the active conductors from below and for earth/PE from above. Biconnect terminals for connecting round conductors and wiring bridges. Modular device according to DIN 43880.