GE CR306G004LTH 

Technical Specifications

Item	Description
Brand	General Electric (GE)
Model	CR306G004LTH
Product Type	NEMA-rated magnetic motor starter
Series	CR306 NEMA Starter Line
Function	Motor control, overload protection, switching
Phase	3-phase industrial applications
Enclosure Compatibility	NEMA industrial enclosures
Control Voltage	Varies by coil configuration
Mounting	Panel-mounted / enclosed assembly
Operating Duty	Heavy-duty industrial operation

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Product Overview

The GE CR306G004LTH is a heavy-duty NEMA-rated magnetic motor starter designed for reliable motor control in industrial environments. It is part of GE’s CR306 series, known for durability, long service life, and strong performance in demanding electrical systems.

This model is commonly used to start, stop, and protect three-phase motors in manufacturing plants, HVAC systems, pumping stations, and other industrial automation setups where consistent motor operation is critical.

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Core Functions & Performance Features

The CR306G004LTH is engineered to deliver stable and safe motor control under varying load conditions. Its key capabilities include:

• Reliable motor starting and stopping control
• Integrated overload protection compatibility
• High endurance for frequent switching cycles
• Stable operation under electrical load fluctuations
• Designed for long operational lifespan in harsh environments
• Strong arc suppression during switching operations

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Structure & Design Composition

The unit is constructed using industrial-grade electrical and mechanical components to ensure durability and safety. Its main structural elements include:

• Heavy-duty contactor assembly for high-current switching
• Thermal overload relay compatibility section
• Reinforced coil mechanism for consistent actuation
• High-conductivity contact points for efficient power transfer
• Rugged base frame designed for NEMA enclosure integration

The modular structure allows it to be easily installed within control panels or motor control centers (MCCs).

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Applications

The GE CR306G004LTH is widely used across multiple industrial sectors, including:

• Industrial motor control systems
• HVAC compressor and fan systems
• Water pumping and treatment facilities
• Conveyor and material handling systems
• Manufacturing automation lines
• Heavy machinery motor control circuits

Its versatility makes it suitable for both light and heavy-duty motor applications.

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Installation & Maintenance Guidelines

Installation Notes:

• Must be installed inside a compatible NEMA-rated enclosure
• Electrical connections should follow industrial wiring standards
• Ensure correct coil voltage matching before energizing
• Installation should be performed by qualified technicians

Maintenance Recommendations:

• Periodic inspection of contact wear and arc marks
• Tightening of terminal connections to prevent loosening
• Cleaning dust and debris from enclosure interior
• Replacement of overload components when required
• Routine operational testing under load conditions

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Advantages

• High reliability in continuous industrial operation
• Strong resistance to electrical wear and arcing
• Compatible with standard NEMA motor control systems
• Long service life with minimal maintenance needs
• Flexible integration into existing control panels
• Proven performance in demanding industrial environments

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Conclusion

The GE CR306G004LTH motor starter is a dependable solution for industrial motor control applications requiring durability, safety, and consistent performance. Its robust construction and compatibility with NEMA systems make it a trusted choice for engineers and system integrators across multiple industries.

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