حفاظت مدار وریستور (ام او وی)

Product Attributes

Introduction

The varistor model is 7D511K, with a nominal varistor voltage V₁ₘₐ = 510V, varistor voltage range of 459 - 561V, maximum continuous AC operating voltage Vₐ₍₍ₘₛ₎₎ = 320V, maximum continuous DC operating voltage V₍₍₎₎ = 420V, leakage current Iₗ ≤ 20μA, maximum clamping voltage Vc = 845V, and surge current capacity Iₚₑₐₖ = 1200A. The operating temperature range is -40°C ~ +85°C, and the storage temperature range is -40°C ~ +125°C. It is primarily composed of zinc oxide ceramic disc, silver paste, tin-plated leads, and epoxy resin. Test methods for various performance characteristics are also described, including electrical performance, mechanical performance, and climate endurance tests.

Features

• Nominal varistor voltage V₁ₘₐ = 510V, varistor voltage range 459 - 561V
• Maximum continuous AC operating voltage Vₐ₍₍ₘₛ₎₎ = 320V, maximum continuous DC operating voltage V₍₍₎₎ = 420V
• Leakage current Iₗ ≤ 20μA, test voltage 420V
• Maximum clamping voltage Vc = 845V, test current Iₚ = 10A (8/20μs waveform)
• Peak surge current Iₚₑₐₖ = 1200A (8/20μs waveform, single pulse)
• Operating temperature range -40°C ~ +85°C, storage temperature -40°C ~ +125°C