S8BA

S8BA Category: Power Circuit Breakers and Molded Case Switches

In the industrial electrical sector, the S8BA category encompasses a range of high-performance power circuit breakers and molded case switches designed for reliable overcurrent protection and isolation in low-voltage distribution systems. These devices typically feature multiple pole configurations such as 3P or 4P, with rated currents from 16A up to 1600A, depending on the specific model. They offer breaking capacities (Icu) from 25kA to 150kA at 415V AC, ensuring robust fault interruption. Key technical attributes include adjustable thermal and magnetic trip units, electronic trip units for precision protection, and compliance with IEC 60947-2 standards. The S8BA series includes fixed and withdrawable versions, with options for rotary handles, motor operators, and auxiliary contacts for remote monitoring. These circuit breakers are engineered for durability in harsh industrial environments, with IP20 or higher protection ratings for panel mounting.

S8BA power circuit breakers are primarily deployed in main distribution boards (MDBs), sub-distribution panels, and motor control centers (MCCs) across industries such as manufacturing, energy, oil and gas, and commercial infrastructure. They are critical for protecting transformers, generators, and large motor loads against short circuits and overloads. In automation systems, these breakers integrate with PLCs and SCADA via communication modules for real-time status feedback. Typical applications include power factor correction banks, UPS systems, and heavy machinery in factories or data centers. Their high breaking capacity makes them suitable for installations with high fault currents, such as industrial plants and large commercial buildings.

The S8BA category includes several subcategories and key article codes. Notable subcategories are fixed circuit breakers (e.g., S8BA-3P-100A), withdrawable circuit breakers (e.g., S8BA-4P-630A), and molded case switches (e.g., S8BA-3P-250A). Article codes typically follow a pattern: S8BA-[Poles]-[Rated Current]-[Breaking Capacity], where poles are 3P or 4P, rated current in amperes (e.g., 100A, 250A, 630A, 1600A), and breaking capacity in kA (e.g., 25kA, 50kA, 150kA). For example, S8BA-3P-100A-25kA denotes a 3-pole, 100A breaker with 25kA breaking capacity. Other variants include electronic trip units (e.g., S8BA-4P-630A-ETU) and accessories like shunt trips and undervoltage releases.

Partnering with Electric Automation Network ensures access to genuine S8BA circuit breakers with real-time pricing and global express shipping. Our engineering team provides personalized technical support for selection, coordination studies, and integration into existing systems. Each product includes detailed documentation, including wiring diagrams and trip curves. Benefit from reduced downtime through fast delivery and expert advice on compliance with local standards. Whether for new installations or retrofits, we streamline procurement for industrial projects worldwide.