3WA

Siemens 3WA Product Features:

High Breaking Capacity: Designed for low-voltage, high-current power distribution systems, it reliably interrupts short-circuit fault currents, suitable for main incoming lines, bus couplers, and critical feeder circuits.

Wide Current Coverage: Offers various frame sizes and rated current levels to meet the power distribution needs of industrial and commercial buildings, data centers, and infrastructure of varying capacities.

Intelligent Electronic Trip Unit (ETU): Configurable with different levels of electronic trip units, providing overload, short-delay short-circuit, instantaneous short-circuit, and ground fault protection.

High-Precision Measurement and Monitoring: Depending on the ETU and accessories configuration, it can monitor electrical parameters such as current, voltage, power, and energy, providing data support for energy management and fault analysis.

Digital Communication Capability: Can be connected to automation and energy management systems via appropriate communication modules, enabling remote monitoring of circuit breaker status, measurement data, and fault information.

Modular Design: The trip unit, communication module, auxiliary contacts, and operating mechanism adopt a modular design, allowing for flexible configuration and expansion according to project requirements.

Fixed and Withdrawn Structures: Offers both fixed and withdrawable options. The withdrawable design facilitates equipment inspection, maintenance, and rapid replacement, improving power supply continuity.

Comprehensive selective protection: Protection parameters can be set to coordinate with upstream and downstream circuit breakers, ensuring that only the faulty circuit is disconnected during a fault.

Comprehensive safety interlocking: Mechanical and electrical interlocking devices can be configured for incoming lines, bus couplers, and other power distribution schemes to help prevent erroneous operation.

Remote operation capability: Can be configured with electric energy storage mechanisms, shunt trip units, undervoltage trip units, closing coils, etc., enabling remote opening and closing and automated control.

Convenient maintenance and diagnostics: Supports viewing operating status, tripping causes, and related diagnostic information, facilitating rapid fault location and maintenance planning by maintenance personnel.

High reliability design: Suitable for critical low-voltage power distribution systems requiring long-term continuous operation, applicable to industrial production, energy, infrastructure, and data center scenarios.

3WA Core Product Selling Points: High breaking capacity • ETU intelligent protection • Digital measurement • Communication interconnection • Modular design • Selective protection • Fixed/withdrawn structure • Remote operation • High reliability
Typical Applications: Low-voltage main incoming line, bus tie, high-capacity feeder, low-voltage side of transformer, generator power distribution, industrial power distribution systems, data centers, commercial building and infrastructure power distribution systems.