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G3PJ
G3PJ – High-Performance Three-Pole Molded Case Circuit Breakers (MCCBs)
Block 1: Technical Introduction
G3PJ series molded case circuit breakers (MCCBs) are designed for robust protection in industrial power distribution systems. These three-pole (3P) devices offer high breaking capacity, typically ranging from 25kA to 100kA at 415V AC, ensuring r...
G3PJ – High-Performance Three-Pole Molded Case Circuit Breakers (MCCBs)
Block 1: Technical Introduction
G3PJ series molded case circuit breakers (MCCBs) are designed for robust protection in industrial power distribution systems. These three-pole (3P) devices offer high breaking capacity, typically ranging from 25kA to 100kA at 415V AC, ensuring reliable fault interruption. Rated currents span from 16A to 1600A, with adjustable thermal and magnetic trip units for precise coordination. The compact, modular design supports fixed or plug-in mounting, and accessories like auxiliary contacts, shunt trips, and undervoltage releases enhance functionality. Operating at frequencies of 50/60 Hz, these breakers meet global standards such as IEC 60947-2 and UL 489, making them suitable for both commercial and industrial applications.
Block 2: Applications and Sectors
G3PJ breakers are ideal for installation in main distribution boards (MDBs), sub-distribution panels, motor control centers (MCCs), and automation cabinets. They protect cables, motors, transformers, and other critical equipment against overloads and short circuits. Common sectors include manufacturing plants, data centers, renewable energy systems (solar and wind), commercial buildings, and infrastructure projects like water treatment facilities. Their high breaking capacity makes them particularly effective in high-fault-current environments, such as heavy industrial settings with large motors or welding equipment.
Block 3: Subcategories and Key Articles
The G3PJ series includes several subcategories based on frame size and breaking capacity: G3PJ-250 (up to 250A), G3PJ-630 (up to 630A), and G3PJ-1600 (up to 1600A). Key article codes follow the pattern G3PJ-XXX-YYY, where XXX denotes the rated current (e.g., 100, 250, 630) and YYY indicates the breaking capacity (e.g., 25, 50, 100). For example, G3PJ-250-50 represents a 250A breaker with 50kA breaking capacity. Accessories like G3PJ-AUX (auxiliary contact) and G3PJ-SHT (shunt trip) are also available. These breakers are often paired with thermal-magnetic or electronic trip units for customizable protection curves.
Block 4: Business Benefits and Support
Electric Automation Network offers the G3PJ series with real-time pricing, global express shipping, and dedicated technical support from our team of electrical engineers. We provide detailed documentation, including datasheets, wiring diagrams, and compliance certificates, ensuring seamless integration into your projects. Our multilingual portal simplifies procurement across regions, while our engineering experts assist with selection, coordination studies, and troubleshooting. Whether you need a single unit or bulk orders for large-scale installations, we ensure fast delivery and reliable after-sales service.
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