Description

The Siemens SENTRON 3VA27 (1600A Frame) is a high-capacity molded case circuit breaker designed for the most demanding power distribution requirements in industrial plants, data centers, and large-scale infrastructure. Featuring the ETU320 electronic trip unit and a comprehensive set of signaling accessories, this 3-pole breaker provides high-precision protection and seamless integration into automated control systems.

Key Features:

Advanced ETU320 Protection: The electronic trip unit offers high accuracy and is independent of ambient temperature. It allows for precise adjustment of the Long-time (L) and Instantaneous (I) tripping thresholds, ensuring optimal coordination and protection of high-power feeders.

Comprehensive Monitoring (4Aux): Equipped with four auxiliary switches that provide reliable real-time feedback on the breaker’s main contact position (Open/Closed) to central control systems or PLCs.

Fault Diagnostics (S24 & RTC): * The S24 Trip Switch provides an immediate signal if the breaker has tripped due to an electrical fault.

The RTC (Ready-to-Close) contact indicates that all internal conditions are met for the breaker to be safely closed (e.g., no active trip signal, spring charged).

Industrial Class M Breaking Capacity: Specifically rated for 55 kA fault levels, making it suitable for main incoming feeders or high-energy sub-distribution boards where high short-circuit levels are expected.

Modular Design: Despite its high current rating, the 3VA27 maintains a space-optimized design and supports a wide range of mounting and connection options, including fixed or draw-out versions.