Shop for AC surge protective device LY1-12.5/4(S)PLUGGABLE MULTI-POLE SPD

AC surge protective device LY1-12.5/4(S)PLUGGABLE MULTI-POLE SPD,

As a professional 50kA 4 pole AC surge protective device factory, we specialize in three-phase + neutral surge protection for industrial control systems. Our production line supports OEM, wholesale, and bulk buy cooperation with global partners.

This SPD protects L1, L2, L3, and N simultaneously, with a combined surge discharge capacity of 50kA per phase. Using MOV ZnO varistors and graphite C insulation, it offers excellent performance and heat dissipation.

We supply OEM SPDs in bulk and help customers develop customized designs for specific voltage levels. Partner with our factory to get reliable, durable surge protectors for industrial energy systems.

■ Technical Data
IEC Electrical		75	150	275	320	385	440
Nominal AC Voltage (50/60Hz)	Uo/ Un	60 V	120 V	230 V	230 V	230 V	400 V
Maximum Continuous Operating Voltage (AC)	Uc	75 V	150 V	275V	320 V	385 V	440 V
Nominal Discharge Current (8/20 μs)	In	20 kA	20 kA	20 kA	20 kA	10 kA	10 kA
Maximum Discharge Current (8/20 μs)	Imax	50 kA	50 kA	50 kA	50 kA	50 kA	50 kA
Impulse Discharge Current (10/350 μs)	Iimp	12.5 kA	12.5 kA	12.5 kA	12.5 kA	10 kA	10 kA
Specific Energy	W/R	39 kJ/Ω	39 kJ/Ω	39 kJ/Ω	39 kJ/Ω	25 kJ/Ω	25 kJ/Ω
Charge	Q	6.25 As	6.25 As	6.25 As	6.25 As	5 As	5 As
Voltage Protection Level	Up	0.7 kV	1 kV	1.5 kV	1.6 kV	1.8 kV	2 kV
Response Time	tA	< 25 ns
Back-Up Fuse (max)		315 A / 250 A gG
Short-Circuit Current Rating (AC)	ISCCR	25 kA / 50 kA
TOV Withstand 5s	UT	114 V	180V	335V	335V	335V	580V
TOV 120min	UT	114 V	230V	440V	440V	440V	765V
	mode	Withstand	Safe Fail	Safe Fail	Safe Fail	Safe Fail	Safe Fail
UL Electrical
Maximum Continuous Operating Voltage (AC)	MCOV	75 V	150 V	275 V	320 V	385 V	440 V
Voltage Protection Rating	VPR	300 V	600 V	900 V	1200 V	1350 V	1500 V
Nominal Discharge Current (8/20 μs)	In	20 kA	20 kA	20 kA	20 kA	20 kA	20 kA
Short-Circuit Current Rating (AC)	SCCR	100 kA	200 kA	150 kA	150 kA	150 kA	200 kA
Mechanical & Environmental
Operating Temperature Range	Ta	-40ºF to +158ºF [-40ºC to +70ºC]
Permissible Operating Humidity	RH	5%…95%
Atmospheric pressure and altitude		80k Pa … 106k Pa / -500 m…… 2000 m
Terminal Screw Torque	Mmax	39.9 Ibf·in[4.5 Nm]
Conductor Cross Section (max)		2 AWG (Solid, Stranded) / 4 AWG (Flexible) 35 mm² (Solid, Stranded) / 25 mm²(Flexible)
Mounting		35 mm DIN Rail, EN 60715
Degree of Protection		IP 20 (built-in)
Housing Material		Thermoplastic: Extinguishing Degree UL 94 V-0
Thermal Protection		Yes
Operating State / Fault Indication		Green ok / Red defect
Remote Contacts (RC) RC Switching Capacity RC Conductor Cross Section (max)		Optional AC: 250V / 0.5 A; DC: 250V / 0.1 A;125V / 0.2 A;75V / 0.5 A 16 AWG (Solid) / 1.5 mm²(Solid)