Spd AC Surge Protection Device

CNKA spd ac surge protection device Introduction

China Suppliers CNKA offers bulk SPD AC surge protection devices with free samples, designed according to the IEC61643 standard. These surge protection devices comply with the "Low Voltage Surge Protectors - Part 1: Performance Requirements and Test Methods for Surge Protectors in Low Voltage Distribution Systems."

The SPD features a high-temperature resistant plastic design with excellent sealing performance and supports both modular and 35mm DIN rail installation. It includes a work indication window, a temperature control circuit breaker, and a built-in overcurrent protection circuit that automatically disconnects during faults, reducing fire risks.

Additionally, the SPD is equipped with a remote alarm interface for easy monitoring. Both the main module and base are replaceable. It offers lightning protection modes of L-PE, N-PE (4P), or L-N-PE (3+1).

CNKA spd ac surge protection device Parameter (Specification)

CNKA spd ac surge protection device Feature

The TT arrangement is a grounding method for power systems that separates the user's ground wire from the transformer, without using distributed grounding conductors. This approach establishes a direct physical grounding connection, offering benefits such as reduced interference and increased reliability. However, because of the high impedance of the L-PE fault circuit, additional differential protection devices are necessary. This grounding method is particularly suitable for grounding generators or transformers.

CNKA spd ac surge protection device Details

CNKA spd ac surge protection device Dimensions and wiring

CNKA spd ac surge protection device Classification

SPDs can be categorized into power line SPDs and signal line SPDs based on their intended purpose. Signal line SPDs, also referred to as signal lightning arresters, are typically installed at the beginning of a signal transmission line. Their primary function is to protect downstream equipment by preventing lightning waves from entering and damaging the equipment via the signal line.