Item No.: LY1-C40/2(S)

LY1-C40/2(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 1CA
Protective Elements: High Energy MOV
Housing: Pluggable Design
Compliance: lEC 61643-11:2011
EN 61643-11:2012

Our 40kA 2 pole surge protective device ensures stable protection for two-phase AC systems.
Using MOV ZnO components, it effectively limits voltage surges and safeguards electrical equipment from lightning and switching transients.
Constructed with PVC/PA66/PBT housing, the SPD guarantees high thermal stability and long service life.
Complies with IEC 61643-11:2011 / EN 61643-11:2022, with CE & TUV certifications ensuring global reliability.
We are a factory-direct manufacturer and supplier, supporting OEM, ODM, wholesale, bulk buy, and in bulk orders.

Applicable scenarios / Application industries

This product fits 35mm DIN rails, perfect for industrial panels, AC distribution boards, and solar inverter 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	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-C40/2(S)PLUGGABLE SINGLE-POLE SPD

1.What makes the LY1-C40/2(S)different from other single-pole SPDs?
The LY1-C40/2(S) offers enhanced MOV surge absorption and a compact pluggable design, making it suitable for distribution panels with limited installation space.

2.Does this model follow IEC/EN surge protection standards?
Yes. It is built in accordance with IEC 61643-11:2011 / EN 61643-11:2022 and carries both CE and TUV certifications for international compliance.

3.What type of internal surge elements are used?
This SPD uses industrial-grade MOV varistors designed for stable clamping voltage and strong surge endurance.

4.Where is the LY1-C40/2(S) typically applied?
It is ideal for AC main panels, residential electrical protection, office power distribution, and small machinery cabinets.

5.Is maintenance easy for this SPD?
Yes. The pluggable module can be removed and replaced instantly without disturbing the wiring, reducing service downtime.

6.What materials are used for the enclosure?
The housing is made from PA66/PBT flame-retardant engineering plastic, resistant to heat and electrical stress.

7.Can this product be customized for OEM orders?
Absolutely. As a dedicated factory, we support private labeling, voltage customization, packaging variations, and bulk OEM/ODM manufacturing.