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Cat XLM Switchgear

The Emergency Transfer and Load management (XLM) product supports transfer between the utility source and generator bus and allows for sustained parallel operation with the utility for load management applications.

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ConfigurationConfigurable PLC based switchgear capable of controlling and monitoring multiple generator sets, tie, utility and load breakers for utility paralleling applications

Modes of OperationEmergency Standby, Utility Import/Export, Peak shaving, and base load operations with redundant controls and components. Closed transition to/from generator power

ApplicationLV and MV ( 208V - 38 kV

ANSI Protective Devices15/25, 27/59, 81 O/U, 32, 40, 50, 51

ANSI Protective Devices15/25, 27/59, 81 O/U, 32, 40, 47, 50, 51, 86

CertificationsIBS, CBC, UBC & OSHPD Certified

Control Panel EnclosureNEMA 1 or NEMA 3R, Freestanding Construction

Operating Temperature0 degrees to 50 degrees C

Storage Temperature-20 degrees C to +60 degrees C

Low Voltage StandardsNEMA SG-5, CSA, ANSI C37.51, ANSI C37.20.1, UL 1558 or UL 891, NFPA 110, NFPA 99 and NFPA 70

Medium Voltage StandardsNEMA SG-5, ANSI / IEEE C37.20.2, CSA-C22.2 No. 31-M89, EEMAC G8-3.2, NFPA 70, NFPA 99 and NFPA 1110


Automatically match the on-line generator capacity to the loads, and avoid unnecessary operation of generator sets.


Accommodates interface with a building management system for monitoring all system parameters via Modbus RTU or TCP


Provides additional discrete synchronization protection


To monitor breaker status, alarms, metering and other operating parameters



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