Liebert ATF Series Liebert AccuGuide Series Type ACG, National Electrical Code NEC Considerations

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Surge Suppression Systems

Liebert AccuGuide Series — Type ACG

SPD Interconnect Assembly

Installation Instructions

All electrical connections shall be installed by a qualified (licensed) electrician. All wiring must comply with the National Electrical Code (NEC) and applicable local codes.

National Electrical Code (NEC) Considerations

The National Electrical Code Article 240-21 details specific tap rules that should be considered before installation.

NEC 240.21 Location in Circuit. Over current protection shall be provided in each ungrounded circuit conductor and shall be located at the point where the conductors receive their supply except as specified in 240.21(A) through (G). No conductor supplied under the provisions of 240.21(A) through (G) shall supply another conductor under those provisions, except through an over current protective device meeting the requirements of 240.4.

(A)Branch-Circuit Conductors. Branch-circuit tap conductors meeting the requirements specified in 210.19 shall be permitted to have over current protection located as specified in that section.

(B)Feeder Taps. Conductors shall be permitted to be tapped, without over current protection at the tap, to a feeder as specified in 240.21(B)(1) through (5).

(1)Taps Not Over 3 m (10 ft) Long. Where the length of the tap conductors does not exceed 3 m (10 ft) and the tap conductors comply with all of the following:

(1)The Ampacity of the tap conductors (25 Amps in our case) is

a.Not less than the combined computed loads on the circuits supplied by the tap conductors, and

b.Not less than the rating of the device supplied by the tap conductors or not less than the rating of the over current protective device at the termination of the tap conductors.

(2)The tap conductors do not extend beyond the switchboard, panelboard, disconnecting means, or control devices they supply.

(3)Except at the point of connection to the feeder, the tap conductors are enclosed in a raceway, which shall extend from the tap to the enclosure of an enclosed switchboard, panelboard, or control devices, or to the back of an open switchboard.

(4)For field installations where the tap conductors leave the enclosure or vault in which the tap is made, the rating of the over current device on the line side of the tap conductors shall not exceed 10 times the Ampacity of the tap conductor.

(2)Taps Not Over 7.5 m (25 ft) Long. Where the length of the tap conductors does not exceed 7.5 m (25 ft) and the tap conductors comply with all of the following:

(1)The Ampacity of the tap conductors is not less than one-third of the rating of the over current device protecting the feeder conductors (75 Amp maximum in our case).

(2)The tap conductors terminate in a single circuit breaker or a single set of fuses that will limit the load to the Ampacity of the tap conductors. This device shall be permitted to supply any number of additional over current devices on its load side.

(3)The tap conductors are suitably protected from physical damage or are enclosed in a raceway.

(3)Taps Supplying a Transformer. Not Applicable

(4)Taps Over 7.5 m (25 ft) Long. Not Applicable

(5)Outside Taps of Unlimited Length. Not Applicable

Flexible liquid tight non-metallic conduit in lengths greater than six feet must be installed in accordance with NEC 351-27.

Installation, Operation and Maintenance Manual

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Liebert TVSS Units SL-22085 Rev 2, 11/2006

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Contents Interceptor II, SAD Hybrid Advantage, Type SS, LM, AccuVar Page Surge Suppression Systems Location Considerations Unpacking and Preliminary InspectionHandling Considerations StorageElectrical Connections Voltage Ratings and Power Source ConfigurationsSource Configurations Voltage Ratings and Power Source ConfigurationsTypical Parallel Connections with Internal Rotary Disconnect System Grounding and Bonding Servicing Troubleshooting / Servicing / MaintenanceTroubleshooting Preventative Maintenance Inspection and CleaningAccuVar Series Installation InstructionsSurge Suppression Systems Type LM SeriesPowerSure LPL Allowable RangeSeries Liebert Active Tracking Filter Series Type F Surge Protective Device SPD Installation InstructionsGround Liebert Active Tracking Filter SystemLiebert PanelGuard Series Type Lpge SPD Interconnect Assembly Installation Instructions Liebert AccuGuide Series Type ACGNational Electrical Code NEC Considerations Equipment Performance ConnectionConduit Conduit SizeDimensional Information AccuVar Series Type ACV & AII Alarm Enable/Disable FeatureAudible Alarm AccuVar Series Hybrid Advantage Series Type HModel Dimensions Inches Active Tracking Filter Series Type FModel Application Wire Range Type SS SeriesBreaker Size Lbs Unit Dimensions InchesWire Size Breaker Type LM Series500 000 PowerSure Medium Exposure Series Type LPM375 750 000PowerSure Low Exposure Series Type LPL PanelGuard Series Type Lpge Example Installations Surge Suppression Systems Limited Warranty Items Not Covered By Warranty LimitationsMiscellaneous Surge Suppression Systems Items Not Covered By Warranty Liebert Corporation

PanelGuard Extension, LM, Interceptor II, ATF Series, SAD Hybrid Advantage specifications

The Liebert AccuVar is a cutting-edge power management solution designed to optimize and protect critical infrastructure. This system is well-known for its unique ability to provide variable voltage and current, ensuring that equipment receives the right level of power needed for optimal performance. One of its main features is the capability for advanced energy management, which aids in reducing operational costs and improving energy efficiency. This is particularly beneficial in environments where power consumption is a major concern.

Another product in this domain is the PowerSure LPM/LPL Series. This series is specifically designed for high-performance applications, featuring a compact design that maximizes space efficiency without compromising on power quality. With excellent surge protection and state-of-the-art noise filtering technologies, the PowerSure series is perfect for protecting sensitive electronic equipment. Its real-time diagnostic capabilities allow users to monitor power quality continuously, which is crucial for both operational stability and preventative maintenance.

The Type SS is a reliable solution for mission-critical applications, featuring an advanced system architecture that ensures uptime and reliability. With high operating efficiency and low total harmonic distortion, the Type SS minimizes operational risk while enhancing system performance. Its modular design provides flexibility in scaling and upgrading systems according to the changing needs of the business.

The SAD Hybrid Advantage showcases a blend of traditional and innovative technologies, enabling an optimal balance between performance and reliability. This series employs a hybrid system that leverages both linear and switching technologies, offering superior load handling capabilities. Enhanced thermal management and intelligent control features ensure that the system operates efficiently, regardless of load variations.

Lastly, the ATF Series is engineered for robust protective capabilities and versatile application in challenging environments. With features such as integrated battery management and customizable configuration options, the ATF series is adaptable for various power needs. The system’s ease of installation and user-friendly interfaces make it highly accessible for IT and facility managers.

Overall, these power management solutions represent a significant leap forward in technology, offering businesses a wide range of features including efficiency, reliability, and adaptability in their power systems. Each series serves distinct applications, ensuring that there is a suitable solution for every critical infrastructure need.
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