Item No.: LY1-C40/1(S)

LY1-C40/1(S)PLUGGABLE SINGLE-POLE SPD

Description：

Classll ·Type 2 ·Type 1CA
Location of Use: Sub-Distribution Boards
Mode of Protection: L-PE, N-PE
Surge Ratings: In = 20 kA (8/20 μs)
IEC/EN/UL Category: Class ll /Type 2 /Type 1
CAProtective Elements: High Energy MOV
Housing: Pluggable Design
Compliance: lEC 61643-11:2011
EN 61643-11:2012

As a professional AC surge protective device manufacturer, our 40kA 1 pole SPD is designed for single-phase AC power systems.
It adopts high-quality MOV ZnO varistors to provide fast response and strong surge absorption against overvoltage transients.
The device body is made of PVC/PA66/PBT, offering excellent insulation, flame resistance, and durability.
Fully compliant with IEC 61643-11:2011 / EN 61643-11:2022, and certified by CE & TUV.
As an experienced OEM/ODM factory and supplier, we provide wholesale, in bulk, and bulk buy options for global distributors.

Applicable scenarios / Application industries

Ideal for AC power lines, solar systems, control cabinets, and combiner boxes, and supports 35mm DIN rail installation.

■ 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
Voltage Protection Level	Up	0.4 kV	1 kV	11.5 kV	1.6 kV	1.8 kV	2 kV
Impulse Current (10/350μs) Iimp (L-N)		7kA
Response Time	tA	< 25 ns
Back-Up Fuse (max)		125 A gL / gG
Short-Circuit Current Rating (AC)	ISCCR	25kA/50kA
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)

■ Internal Configuration

■ Dimensions & Packaging

■ Connection Diagram

FAQ for LY1-C40/1(S)PLUGGABLE SINGLE-POLE SPD

1.What type of protection does the LY1-C40/1(S) provide?
The LY1-C40/1(S) is a pluggable single-pole AC surge protection device designed for fast clamping of transient overvoltage in mains power circuits.

2.What components are used for surge suppression?
This model uses high-performance MOV varistors, selected for reliable surge endurance and consistent protection levels.

3.Does the LY1-C40/1(S) comply with IEC/EN standards?
Yes. It is produced according to IEC 61643-11:2011 / EN 61643-11:2022, and certified with CE and TUV, making it suitable for international electrical projects.

4.Where is the LY1-C40/1(S) typically installed?
It is widely used in AC distribution boards, residential circuit protection, office electrical panels, and power supply systems requiring compact surge defense.

5.What is the advantage of the pluggable cartridge design?
It allows quick replacement of the surge module without removing wiring, reducing maintenance time and keeping systems online.

6.What is the housing material and safety rating?
The casing is constructed from PA66/PBT flame-retardant engineering plastic, ensuring temperature stability and high mechanical strength.

7.Do you provide customization for distributors?
Yes. As an OEM/ODM manufacturing factory, we support custom voltage ratings, labels, packaging, and large-volume production.