Eaton Electrical Magnum Transfer Switch manual Neutrals, Features, Relay Auxiliary Contacts

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Instructional Booklet

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Effective: March 2007

Fixed and Drawout Magnum Transfer Switches

Figure 17. ATC-800.

3.5 Neutrals

All 2-pole and 3-pole transfer switches are equipped with 100% rated neutral connections (Figures 18 and 19). Different lug con- figurations are available (See Option 21A).

Load

Connections

Source

Connections

Ground

Connections

Figure 19. Solid Neutral.

3.6 Features

Switch options, which are not part of the logic scheme, are avail- able to meet a variety of other application requirements. Options are numbered with an associated description. More detailed selec- tions, which must be made within a specific option number, are identified by letters. For available options associated with the logic scheme, refer to the specific logic document associated with the type of logic selected.

NOTICE

OPTIONS ARE UL LISTED, EXCEPT AS NOTED, WHEN SUPPLIED ON UL LISTED SWITCHES. IF AN OPTION IS SELECTED WHICH IS NOT UL LISTED, THE SWITCH WILL NOT HAVE A UL LABEL.

Load

Connections

Source

Connections

Ground

Connections

Figure 18. Neutral SE with Ground Fault.

NOTICE

NOT ALL OPTIONS ARE AVAILABLE FOR ALL TRANSFER SWITCH CONFIGURATIONS. IF IN DOUBT, CHECK PRICE LIST 29-920 FOR THE AVAILABILITY OF OPTIONS FOR A SPECIFIC TRANSFER SWITCH DESIGN. THE OPTION NUMBERS USED HERE CORRE- SPOND TO THE NUMBERS USED IN THE PRICE LIST.

14. Relay Auxiliary Contacts

Provides Form “C” relay auxiliary contacts.

E.Source 1 Available: Provides one Form “C” relay auxiliary con- tact. The relay is energized when Source 1 is available.

F.Source 2 Available: Provides one Form “C” relay auxiliary con- tact. The relay is energized when Source 2 is available.

For more information visit: www.Eaton.com

IB01602011E

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Contents Manual for the Fixed and Drawout Magnum Transfer Switches Testing and Problem Solving Maintenance Renewal Parts GuideInstructional Booklet General Information Preliminary Comments and Safety PrecautionsIntroduction Typical Load Transfer Switch Switching Device Type Schematic Design ConfigurationTypical Bypass Isolation Switch Schematic Withstand RatingsGeneral Magnum Switching Device Magnum Fixed and Drawout Switching DevicesMagnum Transfer Switch Configurations Fixed Switching Device for the Magnum Transfer Switch Transfer Switch Catalog Number Identification Using the Style Identification Guide Transfer Switch Catalog Number ExplanationReceiving, Handling, and Storage Equipment DescriptionDrawout Interlocks Power PanelSwitch Interlocks Open Transition Only Left Side View with Panels Removed Drawout Mechanism Voltage Selection PanelLogic Panel Relay Auxiliary Contacts FeaturesNeutrals Transfer Switch Equipment Enclosures EnclosureMounting Location Installation and WiringStandards Unpackaging and Inspection Mounting Procedure Seismic Tested and Approved Product Mounting InstructionsPower Cable Connections Wire Size for Available Power Cable ConnectionsVoltage Selection Adjustment Mounting the Switching Device in the Drawout MechanismEngine Start Connection WiringOperation Automatic Transfer Switch Close Switch by Pushing Close ButtonSwitching Device Positioning Drawout and Fixed Switching DevicesInstalling a Drawout Switching Device Switching Device in the Connect Position Fixed Switching Device Levering and Position IndicationOperator Panel Operation of the Bypass Isolation Transfer SwitchSwitching Device Operation Source 1 to Source 1 Bypass Bypassing the Transfer SwitchAutomatic Operation Source 2 to Source 2 BypassInto Its Source 2 to Source 1 Bypass Open Transition Only Testing Testing and Problem SolvingManual Operation When in Bypass Mode Problem SolvingTransfer Switch Will Not Automatically Recharge Switches Transfer Switch Appears InoperativeTransfer Switch Will Not Automatically Transfer to Source Maintenance Procedures MaintenancePeriodic Maintenance Procedures IntroductionCover Removal and Replacement Cover Removal and ReplacementRenewal Parts Guide Instructional Booklet Sensing Harness TSMGH02 Kcmil Neutral Terminal Instructional Booklet

Magnum Transfer Switch specifications

The Eaton Electrical Magnum Transfer Switch is a premium solution designed for reliable power management in various applications, ranging from data centers to critical facilities. Known for its robust performance and advanced technology, the Magnum Transfer Switch ensures seamless transitions between utility and backup power sources, thereby enhancing operational continuity.

One of the standout features of the Eaton Magnum Transfer Switch is its unparalleled reliability. The switch is designed with heavy-duty components that provide up to 3,000 amps of continuous current with exceptional fault protection. Its construction is particularly suited for environments where power availability is crucial, ensuring that critical loads remain powered even during grid failures.

The Magnum Transfer Switch incorporates advanced technologies that simplify the operation and monitoring of power systems. It includes microprocessor-based controls that offer users customizable settings and configurations. These smart controls enable automatic transfer operations, ensuring quick response times when switching between power sources. The intelligent diagnostics feature further enhances reliability by offering predictive maintenance alerts, which help in identifying potential issues before they lead to failures.

Safety is a priority with the Magnum Transfer Switch. It is equipped with multiple interlocking features that prevent accidental switchovers and ensure that maintenance can be performed without the risk of electrical accidents. The design adheres to stringent safety standards, providing users with peace of mind.

Flexibility is another characteristic of the Eaton Magnum Transfer Switch. It offers a range of mounting options and configurations to fit diverse installation needs, whether in commercial infrastructures or industrial settings. The switch can be integrated with various power systems, making it a versatile choice for project developers and facility managers.

Additionally, the Magnum Transfer Switch supports eco-friendly initiatives through energy-efficient designs that minimize power loss during transfer operations. This feature is increasingly important as businesses aim to reduce their carbon footprint and enhance sustainability.

In summary, the Eaton Electrical Magnum Transfer Switch stands out for its reliable performance, advanced technologies, and robust safety measures. It is a versatile solution that meets the demands of modern power management, ensuring that critical systems operate continuously, even in the face of unexpected power interruptions. With its combination of efficiency, safety, and flexibility, the Magnum Transfer Switch remains a trusted choice for professionals in various industries.
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