Legrand 412477 MUMMELSCH.T1+T2IIMP 12,5KA TTTNS 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) 12.5 kA/pole. Maximum continuous voltage (Uc) 300 VAC. For use in facilities and buildings with external lightning protection. To protect against overvoltages of downstream consumers caused by direct/indirect lightning strikes or switching operations.

Property	Value
Highest continuous voltage AC:	300 V
Lightning impulse current (10/350 µs):	12.5 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 on the end device:	yes
Mounting type:	Busbar
Network type TT:	yes
Specific energy (W/R):	39 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