Shop for AC surge protective device LY1-C40M/4(S)PLUGGABLE MULTI-POLE SPD

AC surge protective device LY1-C40M/4(S)PLUGGABLE MULTI-POLE SPD,

The mini size 40kA 4P GDT AC surge protective device is designed for three-phase four-wire AC systems where compact size, strong protection capability, and stable gas discharge tube technology are required. As a professional factory, manufacturer, and supplier, we specialize in OEM/ODM production and wholesale / bulk buy / in bulk orders for international buyers. This device uses GDT (Ne gas) as its main protection element, providing extremely low residual voltage and long service life. Compared with MOV-only products, GDT-based SPDs offer higher surge endurance and better thermal stability, ideal for industrial-grade applications.

The housing material PVC/PA66/PBT ensures flame retardancy, impact resistance, and insulation safety. This 4-pole version is suitable for L1 + L2 + L3 + N systems, widely used in industrial machinery, AC distribution panels, building automation, HVAC power supply, and other scenarios where full-phase protection is required. The mini size structure allows easy installation in limited spaces, while the 35mm DIN rail design supports fast assembly and maintenance.

All units follow IEC 61643-11:2011 / EN 61643-11:2022 manufacturing standards and come with CE & TUV certifications, providing globally recognized safety assurance. As a surge protective device manufacturer, we offer complete OEM customization, including specification adjustments, casing customization, private label branding, and packaging design. For wholesalers and distributors seeking a reliable and compact AC SPD solution with high surge capability, this mini size 40kA 4P GDT model is an excellent fit for power, automation, solar AC output, and industrial control environments.

■ 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	20 kA	20 kA
Maximum Discharge Current (8/20 μs)	Imax	40 kA	40 kA	40 kA	40 kA	40 kA	40 kA
Impulse Current (10/350μs)	Iimp	7kA
Voltage Protection Level	Up	0.4 kV	1 kV	1.5 kV	1.6 kV	1.8 kV	2 kV
Response Time	tA	< 25 ns
Back-Up Fuse (max)		63 A gL / gG
Short-Circuit Current Rating (AC)	ISCCR	25kA
TOV Withstand 5s	UT	90V	180V	335V	335V	335V	580V
TOV 120min	UT	115V	230V	440V	440V	440V	765V
	mode	Withstand	Withstand	Safe Fail	Safe Fail	Safe Fail	Safe Fail
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)