WEG SSW900D0255T6E4B - SOFT-STARTER SSW900D0255T6E4B
WEG

SSW900D0255T6E4B

UPC: 7909712688021

Contact for Pricing

Overview

The WEG SSW900D0255T6E4B Soft-Starter is a high-performance electronic motor controller designed to optimize the startup and shutdown of three-phase induction motors in industrial applications. Engineered by WEG, a global leader in motor and drive technology, this soft starter delivers precise voltage control during motor acceleration and deceleration, eliminating damaging current spikes and mechanical stress that shorten equipment lifespan. The SSW900 series represents WEG’s commitment to reliability, efficiency, and innovation in motor control solutions, making it an ideal choice for engineers and maintenance professionals seeking to enhance system performance while reducing operational costs. **Key Features & Technical Advantages** The SSW900D0255T6E4B Soft-Starter is built for durability and versatility, featuring a robust polycarbonate housing in a distinctive blue finish that ensures long-term resistance to industrial environments. Its compact design allows for seamless integration into control panels, even in space-constrained installations. The unit incorporates advanced ramp control algorithms that enable adjustable acceleration and deceleration times, providing operators with the flexibility to tailor motor performance to specific application requirements. Built-in motor protection functions safeguard against overloads, phase imbalance, and overheating, extending the operational life of both the motor and connected equipment. **Applications & Industry Use Cases** This soft starter is particularly well-suited for demanding industrial applications where controlled motor startup is critical. In pumping systems, the SSW900D0255T6E4B prevents water hammer by gradually increasing motor speed, protecting pipes, valves, and pumps from sudden pressure surges. Conveyor systems in manufacturing plants benefit from smooth acceleration, reducing wear on belts and mechanical components while minimizing electrical disturbances on the grid. HVAC systems in commercial buildings rely on soft starters to manage large fan and pump motors without causing voltage sags that disrupt other sensitive equipment. Additionally, the soft starter excels in applications involving compressors, mixers, and crushers, where high starting currents can damage motors or trigger nuisance tripping of protective devices. **Why Choose WEG for Motor Control Solutions?** WEG has established itself as a trusted name in industrial motor control, with decades of expertise in designing and manufacturing high-efficiency motors, drives, and automation solutions. The SSW900 series, including the SSW900D0255T6E4B, reflects WEG’s dedication to innovation, offering features like energy-efficient operation, reduced harmonic distortion, and compatibility with a wide range of motor types. Professionals in industries such as oil and gas, water treatment, mining, and food processing rely on WEG soft starters to improve system reliability, reduce maintenance costs, and comply with stringent energy efficiency standards. The SSW900D0255T6E4B is backed by WEG’s global service network, ensuring technical support, spare parts availability, and compliance with international certifications. **Installation & Maintenance Considerations** Designed for ease of installation, the SSW900D0255T6E4B features a user-friendly interface with clear LED indicators and intuitive programming options. It supports both local and remote control, allowing integration with PLCs, SCADA systems, or standalone operation. The soft starter’s compact footprint and DIN-rail mounting capability simplify panel assembly, while its robust construction ensures reliable performance in harsh conditions, including high humidity, dust, and temperature fluctuations. Routine maintenance is minimal, typically limited to periodic checks of connections and cooling vents, making it a low-overhead solution for continuous industrial operations. **Selecting the Right Soft Starter for Your Application** When evaluating soft starters, professionals prioritize factors such as motor compatibility, adjustable ramp times, and built-in protection features. The WEG SSW900D0255T6E4B addresses these needs with its versatile design, supporting motors in the mid-to-high power range while offering customizable acceleration profiles to match load requirements. Its compatibility with WEG’s broader ecosystem of motors and drives ensures seamless integration into existing systems, reducing commissioning time and minimizing compatibility issues. For applications demanding both performance and longevity, the SSW900D0255T6E4B delivers a cost-effective solution that enhances operational efficiency and reduces downtime.
  • Smooth controlled acceleration/deceleration for 3-phase induction motors
  • Built-in motor protection against overloads, phase imbalance, and overheating
  • Adjustable ramp times for customized motor performance
  • Compact polycarbonate housing in durable blue finish
  • Ideal for pumps, conveyors, HVAC, and industrial machinery

Specifications

Color
Blue
Connection Type
Screw Terminal
Current Rating
255 A
Frequency
50/60 Hz
Material
Polycarbonate
Mounting Type
DIN-Rail
Poles
3
Series
SSW900
Package Weight (Imperial)
30.8 LB
MT-63 34A 3D SCREW EXP (MT63-3D-34-S-E)

1311001000

MT-63 34A 3D SCREW EXP (MT63-3D-34-S-E)
MT-63 19A 3D SCREW EXP (MT63-3D-19-S-E)

1311000700

MT-63 19A 3D SCREW EXP (MT63-3D-19-S-E)
CONTACT BLOCK BU BLB-02

BLB-02

CONTACT BLOCK BU BLB-02
CONTACT BLOCK BU BFB-40

BFB-40

CONTACT BLOCK BU BFB-40
Copper One-Hole Lug, 45 Degree Bend Standard Barrel, Peep Hole, Max 35kV, Wire Size #1 AWG, 1/2 Inch Bolt Size, Silver Plated,Die Code 37, Die Color Code Green

54150UFSP

Copper One-Hole Lug, 45 Degree Bend Standard Barrel, Peep Hole, Max 35kV, Wire Size #1 AWG, 1/2 Inch Bolt Size, Silver Plated,Die Code 37, Die Color Code Green
One-hole, metric conductor, standard barrel with window lug, 4-6mm wire, M8 stud hole.

LCMA6-8-C

One-hole, metric conductor, standard barrel with window lug, 4-6mm wire, M8 stud hole.

Frequently Asked Questions about WEG

What certifications and standards do WEG products comply with?

WEG products meet extensive international standards across multiple critical categories, including safety, electromagnetic compatibility (EMC), functional safety, and regulatory compliance. Key certifications include UL, cUL, CE, TÜV Rheinland, and compliance with international standards such as EN 61800 series, IEC 61508, ISO 13849-1, and directives like Low Voltage (2014/35/EU), EMC (2014/30/EU), and RoHS. Their products are certified for safe operation in various industrial environments, with specific standards covering electrical safety, thermal performance, electromagnetic immunity, and environmental protection.

What is WEG's warranty policy?

WEG offers an 18-month standard warranty for automation products, covering defects in workmanship and materials. The warranty requires proper transportation, handling, storage, and installation within specified environmental conditions. Repairs must be performed by authorized WEG service, and the warranty is limited to the replacement or repair of the product itself, excluding consequential damages. Extended warranty options are available, including purchasing additional coverage at 2.5% of the product's selling price per year, up to 4 additional years.

What industries and applications are WEG products used for?

WEG products are extensively used across multiple industrial sectors, including packaging equipment, material handling, food processing, pumps, medical/lab equipment, door/gate openers, office machinery, and lawn/garden applications. Their versatile DC motors and variable frequency drives (VFDs) are designed for general industrial use, with solutions ranging from off-the-shelf products to custom OEM designs that meet UL/CSA standards for diverse manufacturing and processing environments.

What technical support does WEG offer?

WEG offers comprehensive technical support through multiple channels, including a dedicated Automation Service Department accessible via toll-free phone (1-877-934-3748) and email ([email protected]). They maintain a global network of accredited service centers worldwide, which customers can locate on their website. Additionally, WEG provides warranty support and technical assistance for their industrial automation products, with pre-approval required for warranty repairs.

What are the key features of WEG products?

WEG products feature advanced industrial automation technologies with key characteristics including high performance, flexibility, and connectivity. Their flagship CFW900 Variable Speed Drive demonstrates core product strengths: intelligent thermal management, built-in safety functions, IoT readiness, advanced energy saving capabilities, and comprehensive communication protocols. WEG drives offer robust performance with features like 150% overload capacity, modern graphic HMI, plug-and-play expansion modules, and compatibility across multiple industrial segments including food and beverage, pulp and paper, and manufacturing.

What communication protocols do WEG products support?

WEG products support multiple industrial communication protocols across their product lines, including EtherNet/IP, Modbus-TCP, Modbus-RTU, CANopen, and optional protocols like Profibus-DP and DeviceNet. Specifically, the PLC500 offers 2x Gigabit Ethernet Ports, 1x CAN Port, and 1x RS485 port, enabling seamless integration with major industrial communication networks.

What environmental ratings do WEG products have?

WEG products feature multiple environmental ratings and protection classes. They offer Protection Class 3C2 as a standard coating and Protection Class 3C3 as an optional extra coating, both compliant with IEC 60721-3-3. Environmental specifications include air relative humidity from 5% to 95% non-condensing, altitude ratings up to 1,000m standard (with current derating above that), and Pollution Degree 2 classification with non-conductive pollution requirements.

What accessories are available for WEG products?

WEG offers a comprehensive range of accessories across multiple product lines. For variable frequency drives like the CFW900, accessories include I/O expansion modules, communication modules, encoder modules, temperature transducer modules, relay output modules, and HMI accessories. These accessories expand communication capabilities, input/output functions, and application flexibility. Most accessories are interchangeable between drive frames and can be installed in backplane slots, with communication network accessories limited to one per variable speed drive.

What are the main product lines offered by WEG?

WEG offers a comprehensive range of industrial automation products, including variable frequency drives (CFW series like CFW100, CFW300, CFW500), soft starters (SSW series including SSW05, SSW07, SSW900), and the innovative Motion Fleet Management (MFM) system for predictive maintenance and asset monitoring. Their product lines are designed to support industrial automation needs across various sectors, providing solutions for motor control, fleet management, and operational efficiency.

How are WEG products typically installed?

WEG products are typically installed with careful attention to mounting specifications, protection ratings, and airflow requirements. For variable speed drives like the CFW900, installation methods include surface mounting, flange mounting, and side-by-side configurations with specific clearance guidelines. Installers must follow precise dimensional requirements for each product frame size, ensuring proper ventilation and electrical connections.