Surge Protection Device (SPD) | AC & DC Lightning Surge Protector

The Surge Protection Device (SPD) is a high-performance electrical protection device designed to safeguard electrical systems and sensitive equipment from lightning-induced surges and transient overvoltages. It ensures reliable power protection, minimizes equipment damage, and enhances the safety of residential, commercial, and industrial installations

Description
The Surge Protection Device (SPD) is an essential component of a Lightning Protection System (LPS), designed to protect electrical installations from transient overvoltages caused by lightning strikes, switching operations, and electrical disturbances. By diverting surge currents safely to the grounding system, the SPD prevents damage to sensitive electrical and electronic equipment while ensuring continuous system operation.

Manufactured with advanced Metal Oxide Varistor (MOV) technology and high-quality internal protection components, the SPD delivers fast response time, high surge discharge capacity, and long-term reliability. It features thermal disconnection protection, visual status indicators, and a compact DIN rail design for quick installation and easy maintenance.

Suitable for installation in main distribution boards, sub-distribution panels, control panels, solar PV systems, telecom facilities, data centers, industrial plants, and commercial buildings, the SPD provides comprehensive protection against lightning-induced electrical surges.

Designed in accordance with international lightning protection standards, the Surge Protection Device enhances electrical safety, reduces downtime, extends equipment lifespan, and minimizes maintenance costs.

Key Features

  • Protection Against Lightning & Transient Surges
  • Fast Response Time
  • High Surge Discharge Capacity
  • Advanced MOV Technology
  • Thermal Disconnection Protection
  • Visual Status Indicator
  • DIN Rail Mounting
  • Compact & Space-Saving Design
  • Low Maintenance
  • Long Service Life

Applications

  • Lightning Protection Systems (LPS)
  • Main & Sub Distribution Boards
  • Industrial Control Panels
  • Commercial Buildings
  • Data Centers
  • Telecom Systems
  • Solar PV Systems
  • Hospitals
  • Manufacturing Plants
  • Residential Electrical Installations

Typical Specifications

Feature Details
Product Type Surge Protection Device (SPD)
SPD Type Type I / Type II / Type I+II (Model Dependent)
Rated Voltage (Uc) 230V AC / 275V AC / 385V AC (AC Models) or 600V–1500V DC (DC Models)
Nominal Discharge Current (In) 20kA–40kA
Maximum Discharge Current (Imax) Up to 100kA (Model Dependent)
Response Time ≤25 ns
Number of Poles 1P / 2P / 3P / 4P
Mounting Type DIN Rail
Protection Rating IP20 (Panel Mounted)
Standards IEC 61643-11, IEC 61643-31, IEC 62305

 

 

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