
WEG
RW117-3D3-U097
UPC: 7909323765487
Contact for Pricing
Overview
- WEG RW Series Bi-Metallic Thermal Overload Relay
- 3-Pole configuration
- Adjustable current setting: 63A to 140A
- Phase loss and current unbalance sensitivity
- Class 10 trip characteristics, selectable manual/automatic reset
- Direct mounting to WEG contactors CWB95-CWB125
- Compliant with IEC 60947-4-1 and UL 508 standards
Specifications
Current Rating | 63-140 A |
Poles | 3 |
Series | RW |
Package Weight (Imperial) | 1.078 LB |

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The NNC75X75WH2 Halogen-Free Wide Slot Wiring Duct is used to route, protect, and manage wires near sensitive electronic equipment and in environments where heat resistance or public safety is a concern. UL 94 flame class of V-0 with a UL recognized continuous-use temperature up to 95 C (203 F). Halogen-Free, Polyphenylene Oxide (PPO). Mounting holes provided. 2.85" x 2.97" (72.4 mm x 75.4 mm) and 6.6' (2 m) long. Cover included. Color White. 5 pieces per package.Frequently Asked Questions
Which WEG contactors is this relay compatible with?
This relay is designed for use with WEG contactors CWB95 to CWB125.
Is this relay compliant with international standards?
Yes, it meets IEC 60947-4-1 and UL 508 standards.
What is the trip current range for RW117-3D3-U097?
The trip current range is 63A to 140A, adjustable to match motor FLA.
Can this relay be mounted directly on contactors?
Yes, it is designed for direct mounting to compatible WEG contactors.
Does this relay protect against phase loss?
Yes, it includes phase loss and current unbalance sensitivity protection.
What reset modes are available?
The relay offers selectable manual or automatic reset modes.
What trip class does this overload relay use?
This relay uses Class 10 trip characteristics for motor protection.
How to Install the WEG RW117-3D3-U097 Overload Relay
Step-by-step guide to mounting and wiring the RW117-3D3-U097 thermal overload relay with compatible WEG contactors.
Estimated time: 20m
Tools needed:
Screwdriver, Wire strippers, Multimeter
Supplies needed:
Mounting screws, Compressed air (for cleaning), Crimp connectors (if needed)
- Prepare the contactor
Ensure the WEG contactor (CWB95-CWB125) is powered off and isolated. Clean the mounting surface for secure attachment.
- Mount the overload relay
Align the RW117-3D3-U097 relay with the contactor's mounting points. Secure it using the provided screws and tighten firmly.
- Connect the power wires
Route the motor power cables through the relay's terminals. Connect L1, L2, and L3 to the relay's power poles, ensuring tight connections.
- Set the trip current
Adjust the trip current dial to match the motor's full load amperage (FLA) using the provided scale.
- Connect auxiliary contacts
Wire the 1NO and 1NC auxiliary contacts to the control circuit as per your system requirements.
- Verify installation
Use a multimeter to confirm proper wiring and connections. Power on the system and test the relay's trip and reset functions.
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.









