Power Surge Arresterr

M1L385-40Ⅱ(3P+N)

1.Application This surge protector is primarily used for lightning surge protection and surge protection against transient overvoltages in low-voltage power distribution systems and electrical equipment.
2.Functional performance This product employs a '3+1' protection circuit with built-in overheat and overcurrent protection functions, providing Class C (Type II testing) lightning protection for low-voltage power distribution systems and electrical equipment. The product features an integrated structural design for easy installation and maintenance, and is equipped with a remote signaling alarm interface (dry contact) to facilitate remote monitoring.

3.Technical specifications

Item	Specification
Product Model	M1L385-40 II (3P+N)
Rated Voltage Un	230V/400VAC
Rated Operating Frequency	48~62Hz
Maximum Continuous Operating Voltage – Uc	L-N:385VAC; N-PE:255VAC
Nominal Discharge Current – In	20kA ,8/20μs (L-N;N-PE)
Maximum Discharge Current – Imax	40kA ,8/20μs(L-N;N-PE)
Voltage Protection Level – Up (In)	20KA ,8/20μs ≤1.8kV(L-N)/≤1.0KV(N-PE) 5KA ,8/20μs ≤1.5kV(L-N)/≤1.0KV(N-PE)
Transient Overvoltage Characteristic UTOV	L-N:385V/5sec,L-PE:400V/5sec
Transient Overvoltage Fault Characteristics	1430V/200ms (L-PE); 1200V/200ms (N-PE)
Withstand Short-Circuit Current	25kArms
Terminal Wiring Range	1.5 mm² ~25mm² (Flexible)/35mm² (Rigid)
Alarm Port Maximum Operating Current	250V/0.5A (AC) 0.1A (DC); 125V/1A (AC) 0.5A (DC)
Enclosure Flame Retardant Rating	UL94 V-0
Enclosure Protection Rating	IP20