Title: Eaton S801+T18N3S Soft Starter – 480V, 18A, 3-Phase Motor Control with Integrated Bypass

Product Overview:
The Eaton S801+T18N3S is a high-performance, compact, and feature-rich soft starter engineered for the precise and controlled acceleration and deceleration of 3-phase AC induction motors. As a key component of Eaton's renowned S801+ series, this intelligent motor control device significantly mitigates mechanical stress on machinery and electrical stress on power systems by providing a smooth, ramped start and stop. It is an ideal solution for a wide array of industrial applications, contributing to extended motor life, reduced maintenance costs, and improved overall system efficiency. Equipped with advanced motor protection features and an integrated bypass contactor, the S801+T18N3S offers a reliable, energy-efficient, and cost-effective alternative to traditional full-voltage starters, ensuring optimal performance and longevity for your critical equipment.

Key Features & Benefits:

 Smooth, Controlled Motor Starting & Stopping: Eliminates damaging inrush currents and mechanical shock, significantly extending the lifespan of motors, gearboxes, belts, and all connected mechanical equipment.
 Integrated Bypass Contactor: Reduces heat dissipation from the SCRs during full-speed operation, enhancing energy efficiency and extending the soft starter's operational life by bypassing the power semiconductors once the motor reaches full speed.
 Advanced Motor Protection: Provides comprehensive electronic protection against common motor faults including overload, phase loss, phase imbalance, locked rotor, and over-temperature, safeguarding your valuable assets from potential damage.
 Energy Efficiency Optimization: Minimizes peak demand charges and reduces overall energy consumption during the motor start-up phase, directly contributing to lower operational costs and a greener footprint.
 Compact, Space-Saving Design: Features a small footprint, allowing for easy and efficient integration into existing control panels and new electrical installations where panel space is at a premium.
 User-Friendly Interface: Offers simple setup and intuitive diagnostics via accessible controls, enabling quick commissioning, effortless parameter adjustments, and efficient troubleshooting.
 Wide Application Versatility: Suitable for a broad spectrum of industrial applications, providing reliable motor control for pumps, fans, conveyors, compressors, mixers, and other general industrial machinery.
 Enhanced System Reliability: Reduces unplanned downtime and maintenance by preventing sudden jolts and stresses on mechanical components, leading to more consistent and dependable operations.
 Comprehensive Diagnostic Capabilities: Provides clear fault indication and status monitoring, allowing for rapid identification and resolution of operational issues, minimizing disruption.
 Robust Industrial Construction: Built to withstand demanding industrial environments, ensuring long-term performance, exceptional durability, and reliable operation in harsh conditions.

Applications:

The Eaton S801+T18N3S soft starter is meticulously engineered for optimal performance in diverse industrial and commercial settings where precise and smooth motor control is paramount. Its robust design and advanced features make it suitable for a wide range of demanding applications, including:
 Pumping Systems: Essential for water and wastewater treatment plants, irrigation systems, chemical processing, and various HVAC circulation pumps, ensuring smooth fluid transfer and preventing water hammer.
 Fan and Blower Systems: Ideal for industrial ventilation, exhaust fans, cooling towers, and air handling units, reducing mechanical stress on fan blades and bearings during start-up.
 Conveyor Systems: Crucial for material handling, baggage claim systems, assembly lines, and mining operations, preventing sudden jerks that can damage products or mechanical components.
 Compressors: Used in air compressors, refrigeration units, and process gas compressors, minimizing mechanical shock and extending the life of the compressor unit.
 Mixers and Agitators: Perfect for food and beverage processing, chemical blending, and pharmaceutical manufacturing, ensuring a gentle start to prevent splashing or damage to mixing components.
 Chillers and HVAC Equipment: Optimizing start-up for large cooling systems and air conditioning units, reducing electrical demand spikes and mechanical wear.
 General Industrial Machinery: Any application requiring controlled acceleration and deceleration of 3-phase AC motors to reduce mechanical stress, improve process control, and enhance overall system efficiency.

Technical Specifications:

 Part Number (with special characters): S801+T18N3S
 Part Number (without special characters): S801T18N3S
 Rated Motor Voltage: 480V AC, 3-Phase
 Rated Motor Current: 18 Amps
 Control Voltage: 120V AC
 Horsepower Rating (at 480V): Up to 15 HP (Typical for 18A applications, consult motor nameplate for exact sizing)
 Starting Method: Reduced Voltage Soft Start (Ramped Voltage)
 Stopping Method: Coast-to-Stop (Configurable Soft Stop options may be available on specific S801+ models)
 Bypass: Integrated Bypass Contactor for full-speed operation
 Overload Protection: Electronic Motor Overload Protection (Selectable Class 10, 20, 30)
 Enclosure Type: Open (IP00) for panel mounting
 Mounting: Panel Mount via screws
 Operating Temperature Range: -10°C to +50°C (14°F to 122°F)
 Storage Temperature Range: -25°C to +70°C (-13°F to 158°F)
 Weight: Approximately 5.5 lbs (2.5 kg)
 Certifications: UL Listed, cUL Listed, CE Compliant (Typical for Eaton industrial control products)
 Communication: Optional communication modules may be available for network integration (e.g., Modbus RTU)
 Diagnostic Indicators: LED status indicators for operational status and fault conditions