Item No.: LY1-C40/3(S)+1

LY1-C40/3(S)+1PLUGGABLE MULTI-POLE SPD

Description：

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

The 40kA 3P+N GDT AC surge protective device offers high-performance surge protection for three-phase + neutral AC power systems.
Built with GDT + MOV ZnO technology, it provides excellent coordination, quick response, and long lifespan.
Made with PVC/PA66/PBT housing, compliant with IEC 61643-11:2011 / EN 61643-11:2022, and certified by CE & TUV.
We are an experienced OEM/ODM surge protection manufacturer and factory, supporting wholesale, bulk buy, and in bulk orders worldwide.

Applicable scenarios / Application industries

Ideal for solar combiner boxes, industrial control cabinets, and power distribution boards, with 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	400V
Maximum Continuous Operating Voltage (AC)	(L-N)	Uc	75V	150 V	275 V	320 V	385V	440V
Maximum Continuous Operating Voltage (AC)	(N-PE)	Uc	255 V
Nominal Discharge Current (8/20 μs)	(L-N) / (N-PE)	In	20kV / 20kA
Maximum Discharge Current (8/20 μs)	(L-N) / (N-PE)	Imax	40 kA / 40 kA
Voltage Protection Level	(L-N) / (N-PE)	Up	0.4kV/1.5kV	1.0kV/1.5kV	1.5kV/1.5kV	1.6kV/1.5kV	1.8kV/1.5kV	2.0kV/1.5kV
	(N-PE)	Ifi	100 ARMS
Response Time	(L-N) / (N-PE)	tA	< 25 ns / < 100 ns
Back-Up Fuse (max)			315 A / 250 A gG
Short-Circuit Current Rating (AC)	(L-N)	ISCCR	25 kA / 50 kA
TOV Withstand 5s	(L-N)	UT	90 V	180 V	335 V	335 V	335 V	580V
TOV 120min	(L-N)	UT	115 V	230 V	440 V	440 V	440 V	765V
		mode	Withstand	Withstand	Safe Fail	Safe Fail	Safe Fail	Safe Fail
TOV Withstand 200ms	(N-PE)	UT	1200 V
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-C40/3(S)+1 PLUGGABLE MULTI-POLE SPD

1. How is the LY1-C40/3(S)+1 different from the single-pole version?

The LY1-C40/3(S)+1 is a multi-pole (3P or 4P) Type 2 SPD, designed for three-phase AC power systems. It offers coordinated surge protection across all phases and neutral.

2. What internal technology does this model use?

This multi-pole SPD uses MOV-based protection with optimized energy-absorption capacity for balanced protection across all poles.

3. Can the modules be replaced individually?

Yes. Each pole features an independent pluggable cartridge, making maintenance simple and economical without replacing the entire unit.

4. Where is this SPD commonly installed?

It is used in three-phase distribution boards, industrial machinery panels, power control cabinets, elevator systems, HVAC panels, and other medium-to-large electrical installations.

5. What certifications does this model carry?

The LY1-C40/3(S)+1 complies with IEC 61643-11 / EN 61643-11 and is approved with CE and TUV certifications.

6. Can this model be customized for different markets?

Absolutely. Our factory provides OEM/ODM customization, including multi-pole configurations, labeling, technical adjustments, and private-label manufacturing.