Power line Type2 SPD LT Series

LT-122HT, LT-122HTS, LT-44T2HT, LT-44T2HTS

Combination type SPD for power line ; with floating remote signalling contact.

Features

・Full mode protection (Common, differential mode) with compact body
・Low protection level : Up ≦1.5kV and very fast response time (≦3nsec)
・LED status indicator and signal contact
・Highly reliable disconnection system
・EU RoHS Compliant with regulated substances

Type

LT-122HT
LT-122HTS
LT-44T2HT
LT-44T2HTS

Specification

Type	LT-122HT	LT-122HTS	LT-44T2HT	LT-44T2HTS
SPD according to EN 61643-11 /IEC 61643-11	type2
Nominal a.c. voltage (Un)	220 V (50 / 60 Hz)		220 / 380 V (50 / 60 Hz)
Max. continuous operating a.c. voltage (Uc)	275V (50 / 60 Hz)		275/440V (50 / 60 Hz)
Nominal discharge current (8/20μs) (In)	20kA		20kA
Max.discharge current (8/20μs) (Imax)	40kA		40kA
Voltage protection level (Up)	L-E : ≦1.5kV		L-PE : ≦1.5kV
Response time	L-N : ≦3ns		L-L, L-N : ≦3ns
Short-circuit withstand capability for max. mains-side overcurrent protection	25 kA rms
Operating temperature range (Tu)	-25℃～ +70℃
Operating state / fault indication	LED on : normal / Off : failure
Number of ports	1
Cross-sectional area (min.)	5.5mm² stranded
Cross-sectional area (max.)	14mm² stranded
For mounting on	35mm DIN rails
Enclosure material	thermoplastic, UL 94 V-0
Place of installation	Indoor installations
Degree of protection	IP 20
Poles (terminal)	L, N, E		L1, L2, L3, N, PE
Type of remote signalling contact	-	changeover contact	-	changeover contact
a.c. switching capacity	-	250V / 1.5A	-	250V / 1.5A
d.c. switching capacity	-	110V / 0.2A	-	110V / 0.2A
Cross-sectional area for remote signalling terminals	-	Stranded 0.75mm² to 1.25mm² Rigid φ0.4mm to φ1.2mm	-	Stranded 0.75mm² to 1.25mm² Rigid φ0.4mm to φ1.2mm

Purpose

Protects equipment from lightning surges entering the power supply (for induced lightning).
Type2 SPD (surge arrestor, arrester) for power supply.

Dimension drawing

Products