Earthing Switches ES-125-3,3

The earthing switch is designed to earth a de-energized section of electrical circuit to ensure personnel safety during maintenance work.

Reliable design
The earthing switch has a simple design without complex electronics, ensuring high reliability and durability.

Safe earthing
The built-in mechanical interlock prevents earthing of live current-carrying parts, and helps to avoid incorrect operations and improve personnel safety.

Short-circuit withstand
The earthing switch has an increased making capacity and ensures resistance to high currents in case of accidental closing due to short-circuit current.

Reliability and safety

Enhanced making capacity and short-circuit withstand

Simplicity of design and ease of operation

Long service life

Earthing switches are available in single-pole and double-pole versions, allowing for easy adaptation to various systems.

3600 V DC
Operating voltage

115 kA
Peak short-circuit current

Category V
Making capacity

5000
Switching endurance

ADVANTAGES
Electromagnetic interlock

Easy maintenance
The simple design facilitates scheduled maintenance, reduces the servicing time and minimizes operating costs.

Long service life
A robust design and reliable contact system ensure stable operation of the earthing switch for a long period under traction substation conditions.

Compliance with international standards
The earthing switch is designed in accordance with the requirements of international and European standards:
EN 50123-1:2003/A1:2013
EN 50123-3:2003/A1:2013
IEC 61992-1
IEC 61992-3
DSTU EN 50124-1:2018 (EN 50124-1:2017, IDT).

The earthing switch electromagnetic interlock prevents incorrect switching operations by personnel and helps to avoid fault conditions that could damage the electrical equipment.

The electromagnet rod is connected to a lever that blocks the drive shaft and prevents it from rotating.

The earthing switch is switched from one position to another manually by means of the operating handle.