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25KA 10/350 Power Surge Protection Device SPD For Lightning Protection Surge Protector
Product Features
Class I AC surge protector designed for low-voltage power supply system protection
Response time less than 25ns
Quick thermal response and perfect circuit cutoff function with special thermal disconnector design and arc extinguishing device
Automatic detachment from grid upon failure with visual alarm indicators (green for normal, red for fault)
Technical Specifications
Parameter
Specification
SPD classification according to EN61643-11 with 5M
Type 1 + Type 2 + Type 3
SPD classification according to IEC61643-11 with 5M
Class I + Class II + Class III
Rated operating voltage Un
220V
Max. continuous operating a.c. voltage Uc
275V
Voltage protection level Up
≤1.3kV
Lightning impulse current (10/350us) Iimp
25kA
Nominal discharge current (8/20us) In
25kA
Maximum discharge current (8/20us) Imax
100kA
Response time tA
≤25ns
Combined impulse Uoc
20kV
Cross-section area (Min.)
4mm²
Cross-section area (Max.)
35mm²
Max. backup fuse
315A gG
Operating temperature range Tu
-40℃ to +80℃
Relative humidity (25°C)
≤95%
For mounting on
35mm Din rail
Enclosure material
Thermoplastic UL94-V0
Product Dimensions
Applications
• For integrated low-voltage power distribution systems
• Suitable for TN-S power supply systems of AC 50/60Hz
About Our Company
Wenzhou Britec Electric Co., Ltd. is a manufacturer established in 2003, specializing in surge arresters with over 21 years of experience. We are a high-tech enterprise of Zhejiang province and have passed ISO 9001 certification.
Our Certifications
Frequently Asked Questions
Q1: How to select the right surge protector?
A: Surge protector grading is assessed according to the IEC61024 subdivision lightning protection theory, installed at partition junctions. Technical requirements and functions differ. The first-stage lightning protection device is installed between the 0-1 zone with high flow requirements (minimum GB50057 requirement is 12.5 kA 10/350), while second and third stages are installed between 1-2 and 2-3 zones, mainly to suppress overvoltage.
Q2: Are your surge protectors available for customization?
A: Yes, we offer custom surge protector solutions.
Q3: Are you a manufacturer or trading company?
A: We are a direct manufacturer of lightning surge protectors.
Q4: How can I request samples?
A: We are pleased to provide samples. Please contact our staff with your detailed contact information. We maintain strict confidentiality of all customer information.