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Cat EGP Switchgear
MX150 Microprocessor Controller

Technical Summary

Configuration Configurable PLC based switchgear capable of controlling and monitoring multiple generator sets, tie and load breakers in conjunction with downstream transfer switches for standby or emergency applications - -
Modes of Operation Multi-unit Island and multi-unit standby mode with optional redundant controls and components. - -
Application LV and MV (208V - 38 kV) - -
Rating Range - Switch Dependent -
Transfer Type - Application Dependent -
Switch Type - Application Dependent -

Generator Protective Devices

ANSI Protective Devices 15/25, 27/59, 81 O/U, 32, 40, 50, 51 - -

Environmental Parameters

Certifications IBC, CBC, UBC & OSHPD Certified - -
Control Panel Enclosure NEMA 1 or NEMA 3R Freestanding Construction - -
Operating Temperature 0°C to 50°C - -
Storage Temperature -20°C to +60°C - -
Low Voltage Standards NEMA SG-5, CSA, ANSI C37.51, ANSI C37.20.1, UL 1558 or UL 891, NFPA 110, NFPA 99 and NFPA 70 - -
Medium Voltage Standards NEMA SG-5, ANSI / IEEE C37.20.2, CSA-C22.2 No. 31-M89, EEMAC G8-3.2, NFPA 70, NFPA 99 and NFPA 1110 - -

Controller Specifications

Undervoltage Dropout for Source 1 and Source 2 - 75-98% of nominal -
Undervoltage Restore for Source 1 and Source 2 - 85-100% of nominal -
Underfrequency Dropout for Source 1 and Source 2 - 88-98% of nominal -
Underfrequency Restore for Source 1 and Source 2 - 90-100% of nominal -
Delay for Engine Cool Down (U) - 0-10 seconds -
Delay Transfer to Nonpreferred Source (W) - 0-5 minutes -
Delay NeutralTransition Time Delays (DT,DW) - 0-10 minutes -
Storage Temperature - (-30˚C - 75˚C ), -22˚F - 167˚F -
Operating Temperature Ambient - 40 - 400 amp molded shell (-20˚C to 65˚C) , -4˚F to 149˚F
40 - 4000 amp all others (-20˚C to 60˚C), -4˚F to 149˚F
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