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WEG SSW900D0412T5E4B - SOFT-STARTER SSW900D0412T5E4B
WEG

SSW900D0412T5E4B

UPC: 7909712443682

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Overview

The WEG SSW900D0412T5E4B Soft-Starter is a high-performance motor control solution designed to optimize the operation of three-phase induction motors in demanding industrial environments. Engineered by WEG, a global leader in electric motor technology, this soft starter delivers precise voltage control during motor startup and shutdown, eliminating harmful current surges and mechanical stress that can compromise equipment longevity and system reliability. By gradually ramping up motor voltage, the SSW900D0412T5E4B ensures smooth acceleration while reducing inrush current, which is critical for protecting sensitive electrical infrastructure and minimizing energy consumption during frequent motor starts. Key applications for the WEG SSW900D0412T5E4B include pumping systems where controlled stopping prevents water hammer—a common issue in water treatment, irrigation, and municipal water distribution networks. It is also ideal for conveyor systems, crushers, and fans in mining, cement, and aggregate processing industries, where sudden torque changes can damage mechanical couplings and reduce operational efficiency. The soft starter’s built-in motor protection features safeguard against overloads, phase imbalance, and under-voltage conditions, ensuring compliance with international safety standards such as IEC and UL. Installation and integration are streamlined thanks to the SSW900D0412T5E4B’s compact, panel-mountable design, which reduces cabinet space requirements while maintaining robust performance. The unit supports adjustable ramp times, allowing engineers to tailor acceleration and deceleration profiles to specific motor and load characteristics. This flexibility is particularly valuable in applications where process continuity is critical, such as in HVAC systems, food processing, and material handling facilities. WEG’s reputation for reliability is reinforced by decades of innovation in motor control technology, making the SSW900D0412T5E4B a trusted choice for engineers seeking to enhance system efficiency and reduce maintenance costs. Beyond its core functionality, the SSW900D0412T5E4B incorporates advanced diagnostics and communication capabilities, enabling seamless integration with industrial automation networks via Modbus or other industrial protocols. This allows for real-time monitoring of motor performance, predictive maintenance alerts, and remote adjustments, further optimizing operational uptime. Whether deployed in heavy-duty industrial machinery, renewable energy systems, or commercial building automation, the WEG SSW900D0412T5E4B Soft-Starter delivers unmatched control, protection, and efficiency—backed by WEG’s global service network and technical support. Selecting the right soft starter involves evaluating factors such as motor power rating, load type, and environmental conditions. The SSW900D0412T5E4B is engineered to handle a wide range of motor sizes and applications, from small pumps to large industrial fans, with consistent performance across varying load profiles. Its durable construction, compliance with international certifications, and compatibility with WEG’s extensive portfolio of motors and drives make it a versatile solution for modern industrial automation challenges. For professionals prioritizing reliability, energy efficiency, and long-term cost savings, the WEG SSW900D0412T5E4B is an investment in operational excellence.
  • Smooth, controlled motor acceleration and deceleration to reduce mechanical stress
  • Built-in motor protection against overloads, phase imbalance, and under-voltage
  • Adjustable ramp times for customized startup/shutdown profiles
  • Compact design for easy panel integration in industrial applications
  • Compatible with industrial automation networks for real-time monitoring

Specifications

Package Weight (Imperial)
30.8 LB
SOFT-STARTER SSW900D0365T6E3B WEG specifications: Rated current 365 A; Power supply 400-690 V; Enclosure IP00; Frame D

SSW900D0365T6E3B

SOFT-STARTER SSW900D0365T6E3B WEG specifications: Rated current 365 A; Power supply 400-690 V; Enclosure IP00; Frame D
VLT® Soft Starter MCD 500/600, 600 HP, 839 A, 380-690 V, 110-240 V control, non-bypassed, IP00, frame S3

136Z4337

VLT® Soft Starter MCD 500/600, 600 HP, 839 A, 380-690 V, 110-240 V control, non-bypassed, IP00, frame S3
The softstarter PSR6-600-70 has a rated maximum operational current of 6 A with an operating voltage span from 208...600 V AC. The rated control voltage is between 100...240 V AC at 50/60 Hz. PSR features a two-phase control soft start and stop through a voltage ramp. It has built-in bypass for easy installation and energy saving. A RUN signal is available from a relay output in NO (normally open state). The start/stop ramp and time is easy to set by three potentiometers on the front. PSR is often used in combination with a manual motor starter (MMS) from ABB, so mechanical connection kits are available. Another popular option is Fieldbus communication, which can be enabled by an external adaptor and a Fieldbus plug. The PSR range is our most compact softstarters with basic functionality and values. They are suitable for small three-phase motors with nominal currents from 3...105 A and can manage up to 100 starts per hour. Common applications are, for example, pumps, fans, compressors, and conveyors.

PSR6-600-70

The softstarter PSR6-600-70 has a rated maximum operational current of 6 A with an operating voltage span from 208...600 V AC. The rated control voltage is between 100...240 V AC at 50/60 Hz. PSR features a two-phase control soft start and stop through a voltage ramp. It has built-in bypass for easy installation and energy saving. A RUN signal is available from a relay output in NO (normally open state). The start/stop ramp and time is easy to set by three potentiometers on the front. PSR is often used in combination with a manual motor starter (MMS) from ABB, so mechanical connection kits are available. Another popular option is Fieldbus communication, which can be enabled by an external adaptor and a Fieldbus plug. The PSR range is our most compact softstarters with basic functionality and values. They are suitable for small three-phase motors with nominal currents from 3...105 A and can manage up to 100 starts per hour. Common applications are, for example, pumps, fans, compressors, and conveyors.
The Carlo Gavazzi RSE6012-B is a 3-phase soft starter designed for induction motors. It operates at 600Vac with a rated current of 12Aac, making it suitable for medium-duty motor control applications. The device features a control voltage range of 24-110Vac/dc and 110-480Vac, ensuring compatibility with a wide range of control systems. Mounted on a DIN rail for easy installation, it provides smooth motor starting to reduce mechanical stress and electrical surges. Manufactured by Carlo Gavazzi, a leader in industrial automation components, this soft starter is ideal for applications requiring reliable and precise motor control.

RSE6012-B

The Carlo Gavazzi RSE6012-B is a 3-phase soft starter designed for induction motors. It operates at 600Vac with a rated current of 12Aac, making it suitable for medium-duty motor control applications. The device features a control voltage range of 24-110Vac/dc and 110-480Vac, ensuring compatibility with a wide range of control systems. Mounted on a DIN rail for easy installation, it provides smooth motor starting to reduce mechanical stress and electrical surges. Manufactured by Carlo Gavazzi, a leader in industrial automation components, this soft starter is ideal for applications requiring reliable and precise motor control.
SOFT-STARTER SSW900E0480T5E4B

SSW900E0480T5E4B

SOFT-STARTER SSW900E0480T5E4B
SOFT-STARTER SSW900D0365T5E4B

SSW900D0365T5E4B

SOFT-STARTER SSW900D0365T5E4B
STANDARD PANEL GPH2015QC2001 WEG specifications: Panel type SOFT-STARTER; Horsepower (HP) 15 HP; Main voltage 230 V; Bypass type None; Control options Start Pushbutton, Stop Pushbutton, Run Light, Fault Light and Keypad; Enclosure rating Type 4

GPH2015QC2001

STANDARD PANEL GPH2015QC2001 WEG specifications: Panel type SOFT-STARTER; Horsepower (HP) 15 HP; Main voltage 230 V; Bypass type None; Control options Start Pushbutton, Stop Pushbutton, Run Light, Fault Light and Keypad; Enclosure rating Type 4
SOFT-STARTER SSW900C0200T6E2B WEG specifications: Rated current 200 A; Power supply 400-690 V; Enclosure IP00; Frame C

SSW900C0200T6E2B

SOFT-STARTER SSW900C0200T6E2B WEG specifications: Rated current 200 A; Power supply 400-690 V; Enclosure IP00; Frame C

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.