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Chassis part power circuit breaker
Chassis parts for power circuit breakers are the structural and mechanical components that house and support the main switching mechanism, arc chutes, and operating mechanisms of molded case circuit breakers (MCCBs) and air circuit breakers (ACBs). These parts include the insulating base, cover, and mounting brackets, typically rated for voltage...
Chassis parts for power circuit breakers are the structural and mechanical components that house and support the main switching mechanism, arc chutes, and operating mechanisms of molded case circuit breakers (MCCBs) and air circuit breakers (ACBs). These parts include the insulating base, cover, and mounting brackets, typically rated for voltages up to 690V AC and currents from 100A to 6300A, depending on the frame size. They are designed for fixed or withdrawable mounting in distribution panels and switchgear, with IP20 to IP54 protection levels. The chassis ensures proper alignment of the breaker mechanism, facilitates heat dissipation, and provides mechanical strength for high short-circuit withstand ratings up to 150kA. Common materials include thermoset resins and glass-reinforced polyester for arc resistance and insulation.
These chassis parts are essential in industrial and commercial electrical installations, including main distribution boards, motor control centers (MCCs), and generator paralleling switchgear. They are used in power generation plants, oil and gas facilities, data centers, and large building complexes where reliable circuit protection is critical. The chassis supports the integration of accessories like shunt trips, undervoltage releases, and auxiliary contacts, enabling remote operation and monitoring in automated systems.
Key subcategories include fixed chassis for panelboard mounting, drawout chassis for switchgear, and modular chassis for multi-pole configurations (3P, 4P). Main article codes often follow the manufacturer's frame size designation, such as 'NF250-SEW' or 'SACE E2.2', with suffixes indicating mounting type (e.g., '-F' for fixed, '-W' for withdrawable). These parts are available for major brands like ABB, Siemens, Schneider Electric, and Eaton, with specific codes for each frame series.
Electric Automation Network offers express worldwide shipping and specialized engineering support for chassis part selection. Our engineers provide technical documentation, including dimensional drawings and mounting instructions, ensuring compatibility with your existing switchgear. We maintain real-time pricing and stock for thousands of chassis components, reducing downtime in critical applications.
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