# Siemens SENTRON 3WA1225 Air Circuit Breaker

> circuit-breaker - Fixed three-pole low-voltage air circuit breaker with ETU300 LSI trip unit, rated 1600 A up to 690 V AC.

**Voltformer canonical:** https://voltformer.com/switchgear/siemens-sentron-3wa1225-air-circuit-breaker - markdown version: https://voltformer.com/switchgear/siemens-sentron-3wa1225-air-circuit-breaker.md

## Overview

- **Brand:** Siemens
- **Product family:** SENTRON 3WA
- **Application:** Fixed three-pole low-voltage air circuit breaker with ETU300 LSI trip unit, rated 1600 A up to 690 V AC.
- **Product type:** circuit-breaker

## Technical Specifications

| Property | Value |
|---|---|
| Rated voltage | up to 0.69 kV AC |
| Rated current | 2500 A |
| Short-circuit withstand | not stated as Icw by this exact order-code record; published Icu must not be substituted for Icw |
| Insulation medium | Air circuit breaker |
| Standards | IEC 60947-2 |

## Sources

- https://mall.industry.siemens.com/goos/catalog/Pages/mmpdata.ashx?MLFB1=3WA&lang=en

- **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.

Technical ratings are configuration-dependent where stated by the manufacturer. Request project-specific verification before procurement.