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NA Series
NA Series – Industrial Contactors and Motor Starters
The NA Series encompasses a comprehensive range of industrial contactors and motor starters designed for robust switching and control of three-phase motors and resistive loads. These devices are engineered for high electrical endurance, typically rated for AC-3 and AC-4 utilization categories, ...
NA Series – Industrial Contactors and Motor Starters
The NA Series encompasses a comprehensive range of industrial contactors and motor starters designed for robust switching and control of three-phase motors and resistive loads. These devices are engineered for high electrical endurance, typically rated for AC-3 and AC-4 utilization categories, with coil voltages available from 24 VAC/DC up to 690 VAC. Key technical parameters include rated operational currents from 9 A to 150 A, making them suitable for motor powers up to 75 kW at 400 VAC. The series features modular designs with screw or spring-cage terminals, integrated arc chambers for enhanced breaking capacity, and optional mechanical interlocks for reversing applications. Auxiliary contact blocks, surge suppressors, and thermal overload relays are available as add-on accessories to complete the motor starter assembly.
These contactors and starters are primarily deployed in industrial control panels, motor control centers (MCCs), and automation cabinets for applications such as conveyor systems, pumps, compressors, fans, and HVAC equipment. They are also widely used in building management systems for lighting and heating control, as well as in renewable energy installations like solar tracking systems and wind turbine pitch control. The NA Series is suitable for environments requiring IP20 protection in open panels or IP65 when housed in enclosures, ensuring reliable operation in dusty or humid industrial settings.
The NA Series includes several subcategories: NA-09, NA-12, NA-18, NA-25, NA-32, NA-40, NA-50, NA-65, NA-80, NA-95, NA-115, and NA-150 contactors. The article code structure typically follows the pattern "NA-XX-YYY-ZZ", where XX denotes the frame size (e.g., 09, 12), YYY indicates the coil voltage (e.g., 024 for 24 VAC, 230 for 230 VAC), and ZZ specifies the auxiliary contact configuration (e.g., 10 for 1 NO, 01 for 1 NC). For example, NA-09-024-10 represents a 9 A contactor with a 24 VAC coil and one normally open auxiliary contact. Thermal overload relays like the NA-TO-09 complement the contactors for motor protection.
Partnering with Electric Automation Network ensures access to genuine NA Series components with real-time pricing and global express shipping. Our engineering team provides personalized technical support for selecting the correct contactor ratings, coil voltages, and auxiliary configurations for your specific motor control application. We offer detailed documentation including wiring diagrams, derating curves, and compliance certificates (CE, UL, CCC) to streamline your panel design and procurement process.
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