Legrand 412457 BUSBAR T1+T2 IIMP 7,5KA TT/TNS Combined arrester

Description

Features

Reviews

Legrand combination arrester for 40 mm busbar system, type 1+2+3/Class I+II+III according to IEC/EN 61643-11, 3+1 circuit, TT/TN-S systems, with remote signaling contact + voltage tap L1'. Spark gap basis, leakage current free, nominal voltage 230/400VAC, lightning impulse current Iimp (10/350) 7.5 kA/pole. Maximum continuous voltage (Uc) 300 VAC. For use in facilities and buildings without external lightning protection. For protection against overvoltages of downstream consumers caused by indirect lightning strikes or switching operations.

Property	Value
Highest continuous voltage AC:	300 V
Lightning impulse current (10/350 µs):	7.5 kA
Protection level:	1.5 kV
Test class:	Type 1 and 2
Number of poles:	4
Nominal voltage AC:	230 V
Size:	other
Remote signaling:	yes
Signaling on the device:	optical
Network type TN-CS:	no
Network type DC:	no
Network type TN:	no
Energetically coordinated protective effect to the end device:	yes
Mounting type:	Busbar
Network type TT:	yes
Specific energy (W/R):	14 kJ/Ohm
Integrated back-up fuse:	no
Max. conductor cross-section rigid (single/multi-wire):	35 mm²
Max. Conductor cross-section flexible (fine-stranded):	25 mm²
Network type other:	no
Network type TN-C:	no
Network type IT:	no
Network type TN-S:	yes
Protection class (IP):	IP40