Omni-Rupter® Switches

Omni-Rupter® Switches are superiorly designed overhead distribution switches with configurations and options to suit nearly any pole-mount distribution switching application.

The interrupters feature an operating cam and shunt arm arrangement with an internal latch and spring mechanism that provides a consistent operating speed for the interrupters, independent of the speed of the operating mechanism.

Positive toggle linkage ensures the switch blades are under positive pressure when the switch is closed, eliminating the need to provide “wind up” in the vertical pipe and the possibility of “contact creep” and overheating.

Jaw contacts use spring-loaded floating contact buttons that provide even contact forces across the contacts, reducing friction during operating. Field-replaceable sacrificial guide fingers bring the blade into alignment and act as arcing contacts under fault-closing conditions.

Articulating terminal pads allow added flexibility when connecting jumpers. They reduce loading stress on the blades while minimizing operating friction and blade misalignment caused by overloaded terminal pads.

Omni-Rupter Switches are available with a ground-level manual operating handle, a vandal-resistant hookstick operating handle, or provisions for an S&C 6801M Automatic Switch Operator. All interrupter switches are factory adjusted and tested for close three-pole interphase interrupting simultaneity. Omni-Rupter Switches are available with a choice of fiberglass or steel bases and fiberglass interphase operating rods. They also come with Cypoxy™, porcelain, or silicone insulators. Some configurations are available with wildlife-protection options.

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50/60-Hz Ratings①

① Ratings apply to Omni-Rupter Switches with catalog number revision "R4." For ratings for previous versions of Omni-Rupter Switches, please contact your nearest S&C Sales office.

Interrupting Ratings

② Applies to the switching of the primary of a transformer that remains energized from the secondary bus or to the disconnecting of a loaded secondary bus from one of the two transformers supplying that bus while the primary side of the transformer remains energized.

③ Omni-Rupter Switches can also switch the magnetizing currents associated with such loads.

A variety of optional features are available for Omni-Rupter Switches.

Factory-Adjusted Hookstick Operating Mechanism

• Operable from the ground using an “extendo” hot-stick. Reflectors are included to provide enhanced visibility at night and during inclement weather.
• No vandal-tempting operating handle to install, or grounding mat.
• Cuts switch installation time by up to 60%.
• Redesigned “U”-shaped hookstick pull rings provide a larger landing area for the hookstick, allowing operation from all angles—even directly behind the switch.
• A padlock hasp is incorporated into the hookstick handle, improving visibility by placing the lockout front and center on the switch.
• No field adjustment is needed—ever.

Phase-to-Ground Wildlife Protection

• The phase-to-ground wildlife protection is retrofittable to all installed Omni-Rupter Switches in the upright mounting style.
• The discs’ unique “snap-fit” design allows the protection system to be installed on a de-energized switch on the pole. No tools are required, and no disassembly of the switch parts is needed.
• The wildlife protection prevents animals from making phase-to-ground part contact.

Hookstick with Hookstick Lockout/Tagout

Hookstick-operated Omni-Rupter Switches (mounting configurations) are available with a hookstick-operated lockout/tagout device. This padlockable device locks the switch in the Open position with a single pull of the hookstick.

Also Available:

• Insulating section in the vertical shaft
• Mounting provisions for surge arresters
• Dead-ending extension-link assemblies
• Ice shields
• Open-gap wildlife protection
• Harsh-environment contacts

6801M Automatic Switch Operator

S&C’s 6801M Automatic Switch Operators are fully integrated, microprocessor-based controls that let you automate almost any distribution-class switch and are an ideal match for Omni-Rupter Switches. By combining and testing the electromechanical components, remote terminal unit (RTU), control, and communications as a single package, we also added intelligence, increased reliability, and reduced costs.

When equipped with the optional radio faulted-circuit indicators, the 6801M operator can isolate faults without the need for expensive line post current sensors. Sectionalizing is triggered by a signal from the radio faulted-circuit indicators, followed by a loss of control power.

When equipped with the optional voltage- and current-sensing option, the 6801M operator provides true RMS voltage and current readings plus fault detection, automatic sectionalizing, and loss-of-phase capabilities. When paired with S&C’s IntelliTeam® SG Automatic Restoration System, multiple 6801M operators can work together as teams with IntelliRupter® PulseCloser® Fault Interrupters, 6800 Series Automatic Switch Controls, and IntelliNode™ Interface Modules.

S&C Omni-Rupter Switches are expressly designed for overhead feeder switching and for use in sectionalization schemes. These interrupter switches are available in five mounting configurations to accommodate the variety of line constructions encountered on today’s distribution systems:

Upright Mounting Configuration

All Omni-Rupter Switches are available with a choice of either Cypoxy™ or Porcelain insulators and can be supplied with a wide variety of options-including voltage and current sensors, insulated bases, insulated operating rods, surge arrester mounting brackets and wildlife protection. (Switches shown feature steel bases and Cypoxy Insulators.)

For a full list of options, see S&C Specification Bulletin 765-31.

Standard erection drawings for S&C Alduti-Rupter® Switches - Outdoor Distribution, Alduti-Rupter® Switches - Indoor Distribution, Omni-Rupter® Switches, Scada-Mate® Switches, Circuit-Switchers, etc. can be downloaded here. Please browse our list of equipment erection drawings at our FTP site by clicking here.