Siemens 3WL92112AC310BA1 690 V 5000 A

The Siemens 3WL92112AC310BA1 is a high‑capacity air circuit breaker (ACB) engineered for robust protection and dependable switching performance in demanding low‑voltage electrical distribution systems. As part of Siemens’ 3WL air circuit breaker series, this model is designed to handle heavy industrial, commercial, and infrastructure power distribution applications requiring reliable fault interruption, protection coordination, and system stability up to 690 V AC.

Rated for 5000 A continuous current, the 3WL92112AC310BA1 provides strong protection against overloads, short circuits, and ground faults in three‑phase networks. Its architecture supports both fixed and withdrawable mounting configurations (depending on panel design), ensuring flexibility for installation, maintenance, and system expansion. The breaker’s design complies with international standards such as IEC 60947‑2, ensuring performance, safety, and interoperability within modern low‑voltage switchgear assemblies.

The 3WL series incorporates advanced electronic trip units (ETUs) that offer adjustable protection functions and, when equipped, can deliver long‑time, short‑time, instantaneous, and ground‑fault detection for enhanced selectivity and coordination with upstream and downstream protective devices. The breaker’s modular structure allows integration of communication and metering options, enabling real‑time monitoring, diagnostics, and energy management within integrated digital control systems.

With its high interrupting capacity and rugged construction, the Siemens 3WL92112AC310BA1 is suitable for main distribution boards, branch panels, and feeder protection in industrial plants, data centers, commercial buildings, and critical infrastructure applications. Its design supports high reliability, safety, and serviceability, making it a preferred choice where sustained electrical availability and fault resilience are required in high‑current networks.

Siemens 3WL92112AC310BA1 690V 5000A Air Circuit Breaker, Electronic trip unit, Line and load terminal connectors, Manual and/or electrical operating mechanism, Arc chute assembly, Control wiring harness, Mounting hardware or racking system (if applicable), User manual and installation guide, Calibration or test certificate (if provided), Safety and compliance documentation, Manufacturer warranty card, Original Siemens packaging