WEG SSW900E0670T6E4B - SOFT-STARTER SSW900E0670T6E4B
WEG

SSW900E0670T6E4B

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Overview

The WEG SSW900E0670T6E4B Soft-Starter is a high-performance electronic motor controller designed to deliver smooth, controlled acceleration and deceleration for three-phase induction motors in demanding industrial environments. Engineered by WEG, a global leader in motor technology and industrial automation solutions, this soft starter minimizes mechanical and electrical stress during motor startup and shutdown, significantly extending equipment lifespan while reducing maintenance costs. By gradually ramping up voltage during motor initiation, it eliminates damaging current surges that can degrade motor windings, couplings, and connected machinery—critical for applications where reliability and uptime are paramount. This soft starter is particularly well-suited for applications requiring precise motor control, including pumps, fans, compressors, conveyors, and HVAC systems. In pumping applications, the SSW900E0670T6E4B prevents water hammer effects by controlling deceleration, protecting pipelines and valves from pressure surges. For HVAC systems, it ensures stable operation by reducing voltage sags during startup, which is essential in facilities with sensitive electrical infrastructure. The built-in motor protection features monitor overload conditions, phase imbalance, and excessive temperature, providing comprehensive safeguards against common failure modes. Key features of the WEG SSW900E0670T6E4B include adjustable ramp times for both acceleration and deceleration, allowing engineers to tailor performance to specific application requirements. The compact, space-saving design simplifies panel integration, making it ideal for retrofits or new installations where panel space is limited. WEG’s soft starters are renowned for their durability and ease of use, with intuitive programming via local keypad or remote communication protocols such as Modbus RTU, facilitating seamless integration into existing control systems. The SSW900E0670T6E4B also supports a wide range of motor voltages and frequencies, ensuring compatibility with global industrial standards. Industries that benefit from this soft starter include water and wastewater treatment, mining, oil and gas, manufacturing, and building automation. In water treatment plants, for example, soft starters reduce stress on centrifugal pumps, extending bearing and seal life while minimizing energy consumption during startup. In manufacturing, they protect conveyor systems and machine tools from torque spikes that can cause misalignment or premature wear. WEG’s reputation for innovation and reliability—backed by decades of expertise in motor control technology—makes the SSW900E0670T6E4B a trusted choice for engineers and maintenance teams seeking to optimize motor performance and reduce operational costs. Installation is straightforward, with DIN-rail or panel-mounting options available, and WEG provides comprehensive technical documentation and support to ensure quick commissioning. Whether upgrading existing systems or designing new installations, the SSW900E0670T6E4B delivers the performance, protection, and flexibility required for modern industrial motor control applications.
  • Smooth, controlled motor acceleration/deceleration reduces mechanical and electrical stress
  • Built-in motor protection against overload, phase imbalance, and overheating
  • Adjustable ramp times for customized performance in diverse applications
  • Compact design with easy panel integration (DIN-rail or panel-mount)
  • Compatible with Modbus RTU for seamless integration into industrial control systems

Specifications

Mounting Type
DIN-rail or panel-mounting
Series
SSW900
Series
SSW900E
Package Weight (Imperial)
138.6 LB

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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.