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Kp1 Surge Protective Device/T2 Class Surge Arrester SPD 40ka/Electric Low Voltage SPD

385V Type 1+2 AC Surge Protective Device

It provides an impulse discharge current of 12.5kA under a 10/350μs waveform, a nominal discharge current of 12.5kA under an 8/20μs waveform, and a voltage protection level of up to 2.5kV. The four-module design combines partial lightning-current discharge capability with transient overvoltage limitation for main distribution boards and incoming electrical panels.

Model: JKP1-I12.5
SPD Type: Type 1+2
Application: Incoming low-voltage AC distribution systems
Uc: 385V AC
Iimp: 12.5kA, 10/350μs
In: 12.5kA, 8/20μs
Up: ≤2.5kV
Configuration: Four-module version
Standard: GB/T 18802.1
Brand: YQNT

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Product Description

Basic Info.

Model	JKP1-I12.5
Product Type	Type 1+2 AC Surge Protective Device
Application	Incoming low-voltage AC power distribution
Maximum Continuous Operating Voltage, Uc	385V AC
Impulse Discharge Current, Iimp	12.5kA, 10/350μs
Nominal Discharge Current, In	12.5kA, 8/20μs
Voltage Protection Level, Up	≤2.5kV
Configuration	Four-module version
Protection Technology	MOV voltage-limiting technology
Installation	Parallel connection
Standard Marked on Product	GB/T 18802.1
OEM	Available
Brand	YQNT

Product Description

Product Overview

This Type 1+2 AC surge protective device is designed for incoming low-voltage power distribution systems.

With a maximum continuous operating voltage of 385V AC and an impulse discharge current of 12.5kA under a 10/350μs waveform, the device is intended to conduct partial lightning current while also limiting transient overvoltages before they reach downstream electrical and electronic equipment.

The product is also rated at In 12.5kA under an 8/20μs waveform, combining lightning-current discharge capability with surge-voltage limitation in one modular device.

Typical installation points include main distribution boards, incoming electrical panels and low-voltage distribution systems where coordinated Type 1 and Type 2 protection is required.

The four-module construction is suitable for corresponding multi-conductor AC distribution applications. The exact protection mode and earthing-system compatibility must be confirmed from the product wiring diagram before installation.

Product features

1. Combined Type 1+2 surge protection

Designed to provide lightning-current discharge and transient overvoltage limitation within one AC surge protective device.

2. Iimp 12.5kA lightning-current capability

Each marked protection module is rated at Iimp 12.5kA under a 10/350μs waveform.

3. In 12.5kA surge-current rating

The product is also marked with a nominal discharge current of 12.5kA under an 8/20μs waveform for surge-protection performance.

4. 385V AC maximum continuous operating voltage

The JKP1-I12.5 is designed for applications requiring a Uc rating of 385V AC. The system voltage and earthing arrangement must be checked before selection.

5. Voltage protection level of Up ≤2.5kV

The SPD limits transient voltage to the specified protection level under defined test conditions. Up should be checked against the impulse withstand capability of the downstream equipment.

6. High-energy MOV protection element

The internal construction uses a large metal-oxide varistor to provide voltage-limiting performance during a surge event.

7. Modular construction

The multi-module design supports integration into low-voltage distribution equipment and simplifies product inspection and maintenance.

8. Suitable for incoming distribution protection

The product is intended for installation near the entry point of the electrical installation or within the main distribution board, subject to the complete lightning and surge protection design.

9. OEM and private-label support

Yueqing Nantai can support brand printing, product labels, packaging and technical documentation for qualified OEM projects.

Test standards	EN/IEC61643-31(Type 2 /Class 2/T2/Class C)
Max. PV voltage (d.c.) (Ucpv )	300VDC	500VDC	600VDC	800VDC	1000VDC	1500VDC
Nominal discharge current(8/20us)In	20KA
Maximum discharge current (8/20us)Imax	40KA
Total lighting current(8/20 µs) DC+,DC-→PE (Imax) Itotal	40KA
Voltage Protection Level Up	≤1.5KV	≤2.5KV	≤2.5KV	≤3.2KV	≤4.0KV	≤4.5KV
Response time	<25ns
Degree of protection	IP20
Range of operating temperatures	-40ºC~+80ºC
Failure indication	Green: normal Red:invalid
Pole	2P	2P/4P	2P/4P	2P/4P	2P/4P	4P
Remote signal interface connection capability	Available
Protection Class	IP20

The Type 1+2 AC SPD should be selected according to the nominal AC system voltage, maximum continuous operating voltage, earthing arrangement, conductor configuration and required lightning

protection level.

The four-module construction does not, by itself, confirm whether the internal protection arrangement is 4+0 or 3+1. The correct wiring diagram must be checked before the product is specified for a TN-C, TN-S, TT or other power distribution system.

Send us the electrical single-line diagram if model or wiring confirmation is required.

Product details

FAQ

1.You have sales target finished amount requirement to the distributor?
Q:We welcome distributors in various countries to cooperate with us. Sales is an important assessment criterion.According to different requirements of different countries, new and old customers are welcome to consult!
2.Can I delivery the goods from other supplier to your factory? Then load together?
Q:Of course, we are happy to help customers get products quickly
3.Can I only buy some spare parts from you?
Q:Of course, we can sell everything from spare parts to finished products.
4.Will you will attend the fair to show your products?
Q:Yes, we participate in 3-4 international exhibitions every year, such as the Canton Fair, the Middle East Dubai Electricity Show, the Asian Electricity Show, etc. A series of different exhibitions, and we look forward to seeing each other at the exhibition!
5.How long it takes you to provide the designing options for us?
Q:We have a professional design team. Our models and spare parts are self-developedand produced. We can provide you with ODM services. The general time limit is 45-50 days.
6.How many years have your company made this kind of equipment?
Q:Our company has a history of 12 years. We have been specializing in the production of a series of electrical products such as surge protectors, fuses, circuit breakers, etc.
7.Which certificate do you have for your equipment?
Q:We have established a complete quality management, supply chain and after-sales service system. Continuously introduce 6S international advanced concepts in management, and have successively passed ISO9001, ISO14001, OHSAS18001, CQC certification, CE certification, TUV certification, CB certification, Rohs certification.
8.How many staffs do you have in your factory?
Q:Our company is located in Jiujiang Economic and Technological Development Zone, Jiujiang City, Jiangxi Province, the only International trade port city in Jiangxi Province, with a plant area of more than 30,000 square meters and more than 200 employees.
9.How can I to be your agent in my country?
Q:We welcome distributors in various countries to cooperate with us. Sales is an important assessment criterion. According to different requirements of different countries, new and old customers are welcome to consult!
10.Do you have detailed and professional installation manual?
Q:Of course, you can find the installation manual of any product on our website, and there will be an installation manual in our product box.
11.If OEM is acceptable?
Q:We can provide OEM and ODM services. We have many different specifications and appearances for custom.