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Medium Voltage Circuit Breaker-Type ATS and Bypass/Isolation Switches

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UL Tested, Listed, and Labeled Medium-Voltage Automatic Transfer Switches

Russelectric was the industry leader in obtaining UL listing for its medium- voltage transfer switchgear. All Russelectric RTS Series circuit breaker automatic transfer switches have been fully UL tested, listed, and labeled under UL 1008 A. In addition, all Russelectric medium-voltage transfer switchgear (operating above 600 volts and below 15 kV) is listed per UL category “Circuit Breakers and Metal-Clad Switchgear – Over 600 Volts (DLAH)”. It is also designed, manufactured, and tested to meet or exceed stringent IEEE, NEMA, and ANSI standards.

Russelectric RTS Series medium- voltage ATSs are rugged, high-speed switching devices designed to transfer electrical loads from a normal power source to an emergency power source upon reduction or loss of voltage and to retransfer loads when normal power is restored.

Supervised by the advanced RPTCS microprocessor control, Russelectric Medium-Voltage Circuit Breaker Automatic Transfer Switches direct the flow of electric power through the carefully timed opening/closing of circuit breakers.

Designed, for Maximum Safety and Operating Simplicity

Switches are designed to provide maximum protection for operators and maintenance personnel and to minimize the danger of operator error. Drawout modules, metal-clad construction, segregation of controls from power elements, and separately accessible grounded compartments are all part of Russelectric’s design safety philosophy.

All switches are designed for unattended automatic operation, but include controls for manual operation. Designs provide accessibility for maintenance, trouble- shooting, and component replacement.

All switches are factory tested for functionality prior to shipment. Interconnect wiring diagrams enable proper interfacing of switches with the prime mover and other equipment.

 

For more information and to finish reading this article, please download our brochure. Click HERE

Non-Automatic Transfer Switches- RTS Series

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Russelectric RTS Series non-automatic transfer switches are ideal for applications in which immediate restoration of service (after loss of the normal source) is not critical, and local operations personnel are available to initiate transfer. These switches are UL-listed double-throw devices with identical withstand ratings and design characteristics to RTS Series automatic transfer switches.

Since these non-automatic switches are identical in design to Russelectric RTS Series automatic transfer switches and are of the same exceptional quality, users can be con dent that they are time- tested, reliable, and safe.

Operations personnel can initiate a source transfer locally using electrically operated push-buttons or a mechanical external manual operator, or remotely (optional).

All non-automatic switches can be easily converted to fully automatic operation with the addition of a control panel and minor wiring changes. This ensures flexibility for future expansion and system redesign.

Tested, Listed, and Labeled by UL under UL-1008

Before Underwriters’ Laboratories, Inc. will allow a transfer switch to be listed with a short circuit rating, it requires that the switch be able to close in on the same amount of fault current as it can withstand. All Russelectric RTS Series transfer switches have been fully tested, listed, and labeled for 30-cycle and 3-cycle closing and withstand ratings under UL-1008.

In applications where extremely high short circuit current is available, fuse protection is mandatory. When coordinated with current limiting fuses, Russelectric RTS Series transfer switches have UL-listed closing and withstand ratings of 200,000 A.

Download brochure, HERE.

Bypass/Isolation Switches- RTS-30 Series

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Russelectric RTS-30 Series automatic transfer switches are the most complete line of 480 VAC 30-cycle and 3-cycle UL tested switches available today.

Tested, Listed, and Labeled by UL Under UL-1008

Before Underwriters’ Laboratories, Inc. will allow a transfer switch to be listed with a short circuit rating, it requires that the switch be able to close in on the same amount of fault current as it can withstand. All Russelectric RTS-30 Series automatic transfer switches have been fully tested, listed, and labeled for 30-cycle and 3-cycle closing and withstand ratings under UL-1008.

Built Rugged for Long Life, Minimum Maintenance, and Trouble-Free Service

Russelectric builds all its transfer switches for years of reliable, trouble- free operation with a minimum of maintenance. In fact, many Russelectric switches have been in continuous service for over 40 years.

Contact assemblies are designed to handle the rigors of 30-cycle closing and withstand performance and offer exceptional arc- and track-resistance. Segmented contacts are, machined (not cast, forged, or stamped) from solid copper. Main contact pad material is designed to prevent overheating, and stationary contact pad material prevents welding during withstand conditions. Brush movement of main contacts cleans contact pads with every operation.

All mechanical assemblies, linkages, and connecting rods are purpose-built and precision-machined in-house. Linkages are heavy-duty anodized steel rods (machined, not stamped or riveted) with aircraft-style ball joint fittings.

Bus bar is solid copper, silver plated in accordance with UL and ANSI standards. All bus is formed, cut, and punched before being plated to guarantee the integrity of the silver plating and ensure maximum performance.

Enclosures are fabricated with code gauge steel to meet UL and other applicable standards. All enclosures feature arc-welded seams, extra bracing, and smooth, ground corners. Switches are seismic tested to International Building Code requirements for earthquake compliance.

All transfer switches are thoroughly inspected both mechanically and electrically under simulated operating conditions before shipment.

In applications where extremely high short circuit current is available, fuse protection is mandatory. When coordinated with current limiting fuses, Russelectric RTS-30 Series transfer switches have UL listed closing and withstand ratings of 200,000 amperes.

To download the complete brochure, please click HERE.

Automatic Transfer Switches- RTS-30 Series

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Russelectric RTS-30 Series automatic transfer switches are the most complete line of 480 VAC 30-cycle and 3-cycle UL tested switches available today.

Tested, Listed, and Labeled by UL Under UL-1008

Before Underwriters’ Laboratories, Inc. will allow a transfer switch to be listed with a short circuit rating, it requires that the switch be able to close in on the same amount of fault current as it can withstand. All Russelectric RTS-30 Series automatic transfer switches have been fully tested, listed, and labeled for 30-cycle and 3-cycle closing and withstand ratings under UL-1008.

In applications where extremely high short circuit current is available, fuse protection is mandatory. When coordinated with current limiting fuses, Russelectric RTS-30 Series transfer switches have UL listed closing and withstand ratings of 200,000 amperes.

High-Performance Design

Russelectric automatic transfer switches are modern, high-speed switching devices designed to transfer electrical loads from a preferred power source to an alternate power source when voltage and/or frequency varies from preset limits, and to retransfer loads when preferred source is restored.

Russelectric RTS-30 Series automatic transfer switches utilize simple electrical operators to provide high-speed quick- break, quick-make, preloaded transfers. The operators are connected to the switch mechanism by precision self- aligning, ball joints and sturdy linkage rods which prevent misalignment.

Built Rugged for Long Life, Minimum Maintenance, and Trouble-Free Service

Russelectric builds all its transfer switches for years of reliable, trouble- free operation with a minimum of maintenance. In fact, many Russelectric switches have been in continuous service for over 40 years.

Contact assemblies are designed to handle the rigors of 30-cycle closing and withstand performance and offer exceptional arc – and track-resistance. Segmented contacts are, machined (not cast, forged, or stamped) from solid copper. Main contact pad material is designed to prevent overheating, and stationary contact pad material prevents welding during withstand conditions. Brush movement of main contacts cleans contact pads with every operation.

To download the complete brochure, please click HERE.