News/Events

Struthers-Dunn Expands The Motor Control Contactor Offering To Include Solid State Technology

Historically, the Struthers-Dunn name has been associated with exceptional performance and operational durability in motor contactors and unique relay applications. Our new generation of 645 Solid State Motor Control relays exemplifies the future of Struthers-Dunn and its pursuit of providing technologically advanced devices while maintaining competitive prices.

The 645 series is a UL approved 3 phase motor controlling contactor that relies on 100% Solid State technology. There are no moving parts to wear out and no contacts to weld under heavy operation. The relay is designed to accommodate high power motor loads (up to 75 Amps at 480 VAC) with frequent cycling (10M operations). The 645 footprint provides an excellent solution to the space constraints required by today’s multi-phase motor control or heater applications. Typical applications include industrial compressors and HVAC systems.

The 645R version is a dual input motor reversing relay designed specifically for hoists, commercial doors and heavy machinery controls. This unique relay utilizes AC or DC controlled Solid State devices for reversing phases on three phase loads. Similar to the rest of the 645 line, random turn on or zero cross construction is also available in the 645R Series.

To view the 645RT Solid State Motor Reversing Specifications and other Solid State motor control solutions click on the Motor Reversing Section on our homepage. From our site you are also able to download the 645RT CAD drawing or 3D models from any one of 29 CAD Formats.

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Struthers-Dunn and Southeastern Institute Of Manufacturing and Technology Product Design Partnership

Struthers-Dunn and the Southeastern Institute of Manufacturing and Technology (SIMT) has formed a product design coop partnership. SIMT is an expansion of the Florence-Darlington Technical College located in Florence, South Carolina.

For several years Struthers-Dunn has produced a custom designed 2 pole 102 Series relay for the City of Chicago’s street lights. This 102 Series relay has enjoyed an excellent performance history especially in the harsh winter environment of Chicago. However, the City of Chicago requested Struthers-Dunn to produce a much smaller version of the current 102 Relay to accommodate the revised space and field replacement requirements.

Due to the time constraints of the project and the work load of Struthers-Dunn, a partnership with SIMT was formed to expedite the product design and prototype production. A completely redesigned product was manufactured and assembled in less than 6 months. The new design has doubled the standard contact capability (from 100 Amps to 200 Amps), and allows for a streamlined manufacturing and assembly process. This engineering partnership will continue to assist Struthers-Dunn in designing new products to meet today’s relay application solutions. For more information about the 102 Design and SIMT, please click on the following link to view a short informational video. Click here to view video. (Adobe Flash Player Required)

New Flash Transfer Relay

Struthers-Dunn recently added features to the 21 Series Flash Transfer Relay. This relay is widely used by State Department of Transportation, State Department of Public Safety, and Municipalities to assist in the traffic control cabinets at street intersections.

A Green LED Light Pipe, visible in sun light, has been added to assist Safety Technician trouble shooting. The Green LED will clearly show which relays are in the “ON” Position. This will decrease diagnostic time as well increase technician safety in those very busy intersections.

For additional information on the new 21XBXPL Flash Transfer Series, please review our Product Section or contact your favorite distributor or our Inside Sales/Customer Service Department.

Struthers-Dunn Announces New Engineering Manager

Michael Lane, President of Struthers-Dunn, LLC announced on July 21, 2008 that Mike O’Donnell has joined the Struthers-Dunn Team as Engineering Manager. Lane indicated that Mike brings to this position over four years in Industrial Relay Design and Product Management as well as approximately seven years of electric motor design as a product engineer for an electromechanical aerospace supplier.

According to Lane, Mike’s new role will focus on specification reviews, new product development, and continuous product improvement. Mike will also provide assistance to the Sales Department by evaluating new applications and providing technical support for the Struthers-Dunn Product Line.

Originally from Chicago, Mike and his family will relocate to the Struthers-Dunn Corporate facility and plant located in Florence, South Carolina in early August.

This personnel addition highlights the Struthers-Dunn commitment to our customers, their application requirements and support, and the continuous effort to develop new products.