Product Overview

JN4-12(G) Series indoor high voltage earthingswitch is a new design and improved product based on the ES1 type.The structure is assembled and suitable for electric power system with3~10KV, three-phase and AC 50(60)Hz. As an earthirng protection, it can be used in various kinds of HV switchgears. lt meets GB1985-2004 and lEC129 standard.

Product Definition

Working Condition

Ambient temperature:-10°C-+40°C;

Altitude: ≤1000m;

Relative humidity: Daily average ≤ 95%,

Monthly average ≤ 90%

Earthquake intensity:≤ 8 degree;

Dirtiness degree: ll.

Technical Parameters