# Schneider Electric MasterPact MTZ3 40H1 Hava Devre Kesicisi

> circuit-breaker - Heavy-duty intelligent drawout low-voltage circuit breaker providing Class 1 energy metering and selective fault protection for high-capacity switchboards.

**Voltformer canonical:** https://voltformer.com/switchgear/schneider-electric-masterpact-mtz3-40h1-air-circuit-breaker - markdown version: https://voltformer.com/switchgear/schneider-electric-masterpact-mtz3-40h1-air-circuit-breaker.md

## Overview

- **Brand:** Schneider Electric
- **Product family:** MasterPact MTZ3
- **Application:** Heavy-duty intelligent drawout low-voltage circuit breaker providing Class 1 energy metering and selective fault protection for high-capacity switchboards.
- **Product type:** circuit-breaker

## Technical Specifications

| Property | Value |
|---|---|
| Rated voltage | 0.69 kV |
| Rated current | 4000 A |
| Short-circuit withstand | 100 kA 1s |
| Insulation medium | Air |
| Standards | IEC 60947-1, IEC 60947-2 |

## Sources

- https://www.se.com/ww/en/product-range/62111-masterpact-mtz/

- **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.