40ka Lightning Protection Device for 275VAC AC Electrical Systems

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• Detailed Photos
• Company Profile

Overview

Basic Info.

Model NO.	EAP275/40-5
Size	Small
Operation Voltage	High Voltage
Material	Plastic
Certification	ROHS, CCC, CE
Brand	Onccy
Short-Circuit Current Rating (AC)	25ka / 50ka
Degree of Protection	IP20(Built-in)
Nominal AC Voltage (50/60Hz)	230V
Maximum Continuous Operating Voltage (AC	275V
Thermal Protection	Yes
Transport Package	Box
Trademark	ONCCY
Origin	China
HS Code	8536500090

Packaging & Delivery

Package Size10.00cm * 10.00cm * 10.00cm Package Gross Weight1.000kg

Product Description

• Compliance Standards: GB/T 18802.1 / IEC 61643-11 (EN 61643-11 equivalent)
• Rated Voltage: 275V~ / 320V~ / 385V~ (multiple voltage options available)
• Maximum Discharge Current: 20kA (8/20μs wave form)
• Core Component: High-energy zinc oxide varistor
• Response Time: ≤25 nanoseconds

1. • Pre-wired complete unit with detachable components
   • Base unit provides fixed installation interface
   • Plug-in protection modules for easy replacement (hot-swap capable)
   Modular Design
2. • High-energy absorption capability for lightning and surge protection
   • Fast response time ensures sensitive overvoltage clamping
   • Optimal energy distribution for long service life
   Performance Advantages
3. • Tool-free installation and maintenance
   • Clear visual status indicators
   • Optional accessories: • Remote signaling contact (FM type) for real-time status monitoring • Floating changeover contact for alarm system integration
   Enhanced Usability
4. • Thermal disconnection protection
   • Short-circuit current capacity: ≥10kA
   • Fire-retardant housing (UL94 V-0 compliant)
   Safety Features

• Building electrical systems
• Industrial control panels
• Telecommunications infrastructure
• Renewable energy installations

An AC Surge Protection Device (SPD) is a vital component used in electrical systems to safeguard sensitive equipment and appliances from voltage surges, also known as transient overvoltages. Voltage surges are sudden increases in voltage that can occur due to various reasons, such as lightning strikes, switching of large electrical loads, or power grid disturbances. These surges can damage or degrade electronic devices, causing malfunctions, reduced lifespan, or complete failure.

AC Surge Protection Device SPD Type 1 2, T1 T1, B C, I II, Iimp 10kA,lmax 100kA is designed to be the best possible solution for protecting service entrances at industrial sites, particularly those with existing lightning protection systems or mesh cage applications. This sort of surge protection can protect all electrical installations from lightning strikes by discharging the current generated by a lightning surge and preventing its spread to the equipment. The current waveform of the Type 1 2/Class B C, I II SPD is 10/350 μs.

FAQ
Q: Are you trading company or manufacturer ? A: We are manufacturer. We have 30,000 square meters of self-owned plant. Q: Do you have any certificates? A: Yes,we have UL, TUV, CB, SAA, CCC, CE and other certifications. Q: How do we make a quick response to customer , 5 inquiry ? A: Our professional team will reply you online or by email,Skype, whatsApp and so on. Q: Do you have any exporting experience?Which countries did you export to before? A: We have lots of exporting experience and customers in many countries,such as America, Japan,Australia,UAE,Canada,Vietnam,Turkey,Thailand,Russia,UK,etc. Q:Can you supply samples for checking ? A: Yes, we can supply samples, pls contact for detailed required. Q:How long is your delivery time? A: Generally it is within 3days for small qty. Or it is around 15-20 days to a general order. Q: What is the standard of package of your goods? A: Export standard package or special package according to customer requirement. Q:How about inspection? A: We have the whole inspection system from raw material to end products include transient test, delay test,mechanical life test and so on.Q:What is the service offered by company? A: We have the professional engineer team which can design and develop the mould to arrive different customer requirements. We also have the professional sales team to offer good service from pre-sale to after-sale. EAP Series Surge Protection Device (SPD) Product Specification Technical Parameters: Product Features: Typical Applications: This optimized version presents technical specifications in a structured format, emphasizes key performance metrics, and highlights user-centric benefits while maintaining technical accuracy. The modular design and optional monitoring features are presented as distinct advantages, and compliance with international standards is clearly stated.

IEC Electrical
Nominal AC Voltage (50/60Hz)	Uo /Un	230V 230V 230V 400V
Maximum Continuous Operating Voltage (AC)	Uc	275V 320V 385V 440V
Nominal Discharge Current (8/20 μs)	In	20kA 20kA 20kA 20kA
Maximum Discharge Current (8/20 μs)	Imax	50kA 50kA 50kA 50kA
Impulse Discharge Current (10/350 μs)	I Imp	12.5kA 12.5kA 10kA 10kA
Specific Energy	W/R	39kJ/Ω 39kJ/Ω 25kJ/Ω 25kJ/Ω
Charge	Q	6.25As 6.25As 5As 5As
Voltage Protection Level	Up	1500V 1500V 1800V 2000V
Response Time	tA	<25ns
Back-Up Fuse (max)		160A gL
Short-Circuit Current Rating (AC)	I SCCR	25kA / 50kA
TOV Withstand 5s	UT	335V 335V 335V 580V
	UT	440V 440V 440V 765V
TOV 120min	Mode	Safe Fail Safe Fail Safe Fail Safe Fail
Number of Ports		1
UL Electrical
Maximum Continuous Operating Voltage (AC)	MCOV	275V 320V 385V 440V
Voltage Protection Rating	VPR	900V 1200V 1350V 1500V
Nominal Discharge Current (8/20 μs)	In	20kA 20kA 20kA 20kA
Short-Circuit Current Rating (AC)	SCCR	150kA 150kA 150kA 200kA
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 / -500m … 2000m
Terminal Screw Torque	Mmax	39.9 Ibf·in [2.0~2.5 N.m]
Conductor Cross Section (max)		2 AWG (Solid, Stranded) / 4 AWG (Flexible)
		35mm2 (Solid, Stranded) / 25mm2 (Flexible)
Mounting		35mm DIN Rail, EN 60715
Degree of Protection		IP20(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)		Optional
RC Switching Capacity		AC:250V / 0.5A; DC:250V / 0.1A; 125V / 0.2A; 75V / 0.5A
RC Conductor Cross Section (max)		16AWG (Solid) / 1.5mm2 (Solid)

Product model
IEC Electrical
Nominal AC Voltage (50/60Hz)	Uo /Un	230V
Maximum Continuous Operating Voltage (AC) (L-N) / (N-PE)	Uc	275V/255V	320V/255V	385V/255V	440V/440V
Nominal Discharge Current (8/20 μs) (L-N) / (N-PE)	In	20kA/20kA	20kA/20kA	20kA/20kA	20kA/20kA
Maximum Discharge Current (8/20 μs) (L-N) / (N-PE)	Imax	50kA/50kA	50kA/50kA	50kA/50kA	50kA/50kA
(L-N) / (N-PE)	I Imp	12.5kA / 25kA / 50kA
Voltage Protection Level (L-N) / (N-PE)	Up	<1500V / 1500V	<1500V / 1500V	<1800V / 1500V	<2000V / 1500V
Response Time (L-N) / (N-PE)	tA	<25ns / 100ns
Back-Up Fuse (max)		160A gL
Short-Circuit Current Rating (AC) (L-N)	I SCCR	25kA / 50kA
TOV Withstand 5s (L-N)	UT	335V
(L-N)	UT	440V
TOV 120min (L-N)	Mode	Safe Fail
Number of Ports		1
UL Electrical
Maximum Continuous Operating Voltage (AC)	MCOV	275V	320V	385V	440V
Voltage Protection Rating	VPR	900V	1000V	1200V	1200V
Nominal Discharge Current (8/20 μs)	In	20kA	20kA	20kA	20kA
Short-Circuit Current Rating (AC)	I SCCR	150kA	150kA	150kA	200kA
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 / -500m … 2000m
Terminal Screw Torque	Mmax	39.9 Ibf·in [2.0~2.5 N.m]
Conductor Cross Section (max)		2 AWG (Solid, Stranded) / 4 AWG (Flexible)
		35mm2 (Solid, Stranded) / 25mm2 (Flexible)
Mounting		35mm DIN Rail, EN 60715
Degree of Protection		IP20(built-in)
Housing Material		Thermoplastic: Extinguishing Degree UL 94 V-0
Thermal Protection		Yes
Operating State / Fault Indication		Green: ok / Red: failure
Remote Contacts (RC)		Optional
RC Switching Capacity		AC:250V / 0.5A; DC:250V / 0.1A; 125V / 0.2A; 75V / 0.5A
RC Conductor Cross Section (max)		16AWG (Solid) / 1.5mm2 (Solid)

Product model
IEC Electrical
Nominal AC Voltage (50/60Hz)	Uo /Un	230V
Maximum Continuous Operating Voltage (AC) (L-N) / (N-PE)	Uc	275V/255V	320V/255V	385V/255V	440V/440V
Nominal Discharge Current (8/20 μs) (L-N) / (N-PE)	In	20kA/20kA	20kA/20kA	20kA/20kA	20kA/20kA
Maximum Discharge Current (8/20 μs) (L-N) / (N-PE)	Imax	50kA/50kA	50kA/50kA	50kA/50kA	50kA/50kA
(L-N) / (N-PE)	I Imp	12.5kA / 25kA / 50kA
Voltage Protection Level (L-N) / (N-PE)	Up	<1500V / 1500V	<1500V / 1500V	<1800V / 1500V	<2000V / 1500V
Response Time (L-N) / (N-PE)	tA	<25ns / 100ns
Back-Up Fuse (max)		160A gL
Short-Circuit Current Rating (AC) (L-N)	I SCCR	25kA / 50kA
TOV Withstand 5s (L-N)	UT	335V
(L-N)	UT	440V
TOV 120min (L-N)	Mode	Safe Fail
Number of Ports		1
UL Electrical
Maximum Continuous Operating Voltage (AC)	MCOV	275V	320V	385V	440V
Voltage Protection Rating	VPR	900V	1000V	1200V	1200V
Nominal Discharge Current (8/20 μs)	In	20kA	20kA	20kA	20kA
Short-Circuit Current Rating (AC)	I SCCR	150kA	150kA	150kA	200kA
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 / -500m … 2000m
Terminal Screw Torque	Mmax	39.9 Ibf·in [2.0~2.5 N.m]
Conductor Cross Section (max)		2 AWG (Solid, Stranded) / 4 AWG (Flexible)
		35mm2 (Solid, Stranded) / 25mm2 (Flexible)
Mounting		35mm DIN Rail, EN 60715
Degree of Protection		IP20(built-in)
Housing Material		Thermoplastic: Extinguishing Degree UL 94 V-0
Thermal Protection		Yes
Operating State / Fault Indication		Green: ok / Red: failure
Remote Contacts (RC)		Optional
RC Switching Capacity		AC:250V / 0.5A; DC:250V / 0.1A; 125V / 0.2A; 75V / 0.5A
RC Conductor Cross Section (max)		16AWG (Solid) / 1.5mm2 (Solid)

Detailed Photos Company Profile