MAGNETEK DS-302 Product Description

Product Overview

The MAGNETEK DS-302 is a sophisticated industrial soft starter designed to provide smooth and controlled acceleration and deceleration of AC motors in various industrial applications. As a key model in Magnetek’s soft starter lineup, this device combines advanced motor protection features with user-friendly operation, making it an essential component in systems where motor longevity and operational efficiency are critical. Whether deployed in pumps, fans, conveyors, or compressors, the DS-302 minimizes mechanical stress on motors and connected equipment, reduces inrush current, and ensures stable performance across varying load conditions. Its robust design and versatile functionality make it a reliable choice for engineers and plant managers aiming to optimize motor control systems.

Hainan Jinlin Mechanical & Electrical, a distributor of industrial control products, specializes in a wide range of brands. With extensive industry knowledge and market insights, we adhere to the “Customer First, Forge Ahead” business philosophy, providing high-quality customer service to meet your needs.

Technical Specifications

Parameter	Value
Product Model	DS-302
Manufacturer	MAGNETEK
Product Type	Industrial Soft Starter
Rated Current	30 A
Motor Power Range	11 kW – 15 kW (at 400V AC)
Input Voltage	380V – 480V AC, 3-phase
Control Modes	Voltage ramp, current limit
Operating Temperature	-10°C to +50°C
IP Rating	IP20 (enclosure)

Key Features and Benefits

Smooth Motor Start and Stop

The MAGNETEK DS-302 employs advanced voltage ramp and current limit control modes to ensure gradual acceleration and deceleration of motors. This eliminates the sudden torque spikes associated with direct-on-line starting, reducing mechanical stress on couplings, gears, and belts. For example, in pump applications, the soft start prevents water hammer, protecting piping systems from damage. Similarly, in conveyor systems, it avoids sudden jolts that could disrupt product flow or damage fragile items, enhancing overall system reliability.

Comprehensive Motor Protection

Equipped with a suite of protective features, the DS-302 safeguards motors against common faults such as overload, phase loss, overvoltage, undervoltage, and overtemperature. The overload protection is adjustable to match the motor’s rated current, ensuring precise protection without unnecessary tripping. Phase loss detection prevents motor damage in case of a missing phase, while voltage monitoring protects against electrical supply irregularities. These features minimize downtime by preventing motor failures and reducing the need for costly repairs or replacements.

Energy Efficiency

By reducing inrush current during startup, the MAGNETEK DS-302 lowers peak power demand, which can lead to reduced utility costs. Unlike traditional starters that draw up to 6-8 times the motor’s full-load current during startup, the DS-302 limits inrush to a manageable level (typically 2-3 times full load), reducing strain on the electrical system and avoiding voltage dips that could affect other equipment. This energy-efficient operation also contributes to a smaller carbon footprint, aligning with modern sustainability goals.

User-Friendly Configuration and Monitoring

The DS-302 features an intuitive keypad and digital display for easy parameter setup and real-time monitoring. Users can quickly adjust start/stop times, current limits, and protection settings without specialized training. The display provides clear feedback on motor current, voltage, and operating status, enabling operators to identify issues promptly. Additionally, the soft starter supports remote control via optional analog or digital signals, allowing integration into centralized control systems for enhanced operational flexibility.

Related Models

As a certified partner of industry leaders such as Bentley Nevada, Honeywell, and ABB, we provide key components for various application areas. In process industries, the MAGNETEK DS-302 is used to control pump and fan motors in chemical processing plants and water treatment facilities. In discrete manufacturing, it regulates conveyor and mixer motors in automotive and food processing lines. In infrastructure, it manages motor-driven equipment in heating, ventilation, and air conditioning (HVAC) systems for commercial buildings. We offer a one-year warranty for the MAGNETEK DS-302. If you cannot find the model you need, please contact us immediately.