Power Surge Arresterr

M1L385-40Ⅱ（3P）

1.Application This surge protector is primarily applied for surge protection against lightning or other transient overvoltages in low-voltage power supply TN-S systems.
2.Functional performance The product is equipped with built-in overheat and overcurrent protection functions, providing Class C (Type II classification test) surge protection for low-voltage power distribution systems and electrical equipment. It adopts a 35-millimeter DIN rail mounting method, with the surge protection module being replaceable independently for convenient installation and maintenance. The product is also fitted with a remote signaling alarm interface (dry contact) to facilitate remote monitoring of the surge protector status.

3.Technical specifications

Item	Specification
Product Model	M1L385-40 II (3P)
Rated Voltage Un	230VAC
Maximum Continuous Operating Voltage – Uc	385VAC
Nominal Discharge Current – In (8/20μs)	20kA
Maximum Discharge Current – Imax (8/20μs)	40kA
Voltage Protection Level – Up (In)	1.8KV
Transient Overvoltage Characteristic UTOV	400V/5sec
Withstand Short-Circuit Current	25kArms
Front-Fuse	125AgL
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