# Siemens Energy 3EL3 Surge Arrester

> surge-arrester - High-voltage metal-oxide surge arrester for transformer, circuit-breaker, generator, motor, capacitor, bushing, switchgear and transmission-line protection.

**Voltformer canonical:** https://voltformer.com/product/siemens-energy-3el3-surge-arrester - markdown version: https://voltformer.com/product/siemens-energy-3el3-surge-arrester.md

## Overview

- **Brand:** Siemens
- **Product family:** 3EL silicone-rubber Cage Design surge arresters
- **Category:** Grid Equipment & Power Quality / surge-arresters-and-insulation-coordination

## Manufacturer-stated technical envelope

- **System voltage:** 0.1–550 kV
- **Rated voltage:** 0.1–468 kV
- **Nominal discharge current:** 20 kA peak
- **Line discharge class:** 4 / 5
- **Mechanical strength (SSL):** 10000 Nm
- **Housing:** Direct-molded silicone-rubber housing with FRP rod Cage Design and metal-oxide varistors

## Standards

- IEC 60099-4 - confirm the exact ordered configuration

## Official sources

- https://assets.siemens-energy.com/dam/9f2143a4-3294-43da-a0fa-b03b00ddc5da/High-voltage-surge-arresters-brochure-pdf_Original%20file.pdf

- **Source scope:** manufacturer-family
- **Last reviewed:** 2026-09-13

Manufacturer portfolio/family source. Confirm the exact order code, guaranteed ratings and project-specific options against the current OEM datasheet before procurement or an SLD study.

The stated values are family or catalogue-option limits. Select the exact order code and verify project-specific duties before procurement or release of an SLD design.