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AC 220V/275V Three Phase Surge Protective Device (SPD)
SPD Surge Protective Devices are engineered to safeguard electrical systems against transient surge conditions, featuring modular design and reliable protection for industrial applications.
Key Features
Designed for protection against transient surge conditions
35mm DIN rail installation compatible
Protects against internal and external electrical surges
Modular design with excellent tightness and reliability
Technical Specifications
SPD Classification (IEC61643-11)
Class II
Working Voltage (Un)
220V
Max Continuous Operating Voltage (Uc)
275V
Voltage Protection Level (Up)
≤1.2kV
Nominal Discharge Current (8/20μs)
10kA
Max Discharge Current (8/20μs)
20kA
Test Standard
IEC61643-1
Response Time (tA)
≤25ns
Operating Temperature Range
-40℃ to +80℃
Wire Cross-section Area
4mm² - 35mm²
Status Indication
Green (normal) / Red (fault)
Enclosure Material
Thermoplastic UL94-V0
Mounting
35mm DIN Rail
Weight (3-pole)
0.375kg
Product Dimensions
Applications
Low-voltage lightning protection for buildings and structures
Installation in low-voltage lightning protection devices and distribution boxes
Protection for electronic equipment in distribution systems
Suitable for TN-C power supply systems (AC 50/60Hz)
C-grade lightning protection applications
Installation Guidelines
This SPD is designed for power distribution system lightning protection and should be installed on the input side of distribution boards or power distribution boxes in buildings.
Installation Steps:
Mount on 35mm DIN rail using Kelvin connections
Always disconnect power before installation - never operate with live power
Connect L (phase line), N (neutral line), and PE (ground line) correctly
After installation, close the circuit breaker and verify normal operation status
Maintenance:
Regularly check the status indicator window
Green indicator indicates normal operation
Red indicator indicates product deterioration - replace immediately
For outdoor installation, use appropriate waterproof enclosure
Grounding must comply with lightning protection standards
Use thick, short grounding wires with resistance less than 4Ω
Manufacturer Information
Wenzhou Britec Electric Co., Ltd., located in Yueqing City, Zhejiang Province, specializes in the technical R&D, production, and sales of surge protection products. With senior R&D experts, modern facilities, and comprehensive distribution services, the company maintains ISO9001 international standards to ensure product quality and customer satisfaction.
Production Facilities
Certifications
Shipping & Logistics
Frequently Asked Questions
Q1. What is the delivery time?
Lead time after receiving 30% T/T deposit: 30 days. Samples are prepared within 15 days.
Q2. What is the minimum order quantity (MOQ)?
Standard MOQ is 100 pieces, with samples available for quality inspection.
Q3. Are samples charged?
Samples are charged according to company policy, with sample fees credited toward future orders.
Q4. Can you produce according to customer designs?
Yes, we support both OEM and ODM services as a professional manufacturer.
Britec Electric specialized in research and development of lightening protection devices. The new
series of surge protection device Type1,Type2 and Type3,BR PV and SPDs for Date offer the market
with a new choice of high quality surge arresters.
Established in 2003, is a professional surge protecti... Britec Electric specialized in research and development of lightening protection devices. The new
series of surge protection device Type1,Type2 and Type3,BR PV and SPDs for Date offer the market
with a new choice of high quality surge arresters.
Established in 2003, is a professional surge protecti...
