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 Cat EGP Switchgear |
 MX350 Controller |
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Technical Summary |
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| 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 |
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| ANSI Protective Devices | 15/25, 27/59, 81 O/U, 32, 40, 50, 51 | - | - |
Environmental Parameters |
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| 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 |
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| Voltage Unbalance on Dropout for Source 1 and Source 2 | - | 5 to 20% of nominal | - |
| Delay NeutralTransition Time Delays (DT,DW) | - | 0-10 minutes | - |
| Control Power | - | 120 VAC | - |
| Undervoltage Dropout for Source 1 and Source 2 | - | 75-99% of nominal | - |
| Undervoltage Restore for Source 1 and Source 2 | - | 85-100% of nominal | - |
| Overfrequency Dropout for Source 1 and Source 2 | - | 50.1 - 63 Hz | - |
| Source Sensing | - | 120 - 690 VAC +/- 1% of nominal voltage (+/- .05 Hz, +/-.5 A) | - |
| Delay for Engine Cool Down (U) | - | 0-60 minutes | - |
| Underfrequency Restore for Source 1 and Source 2 | - | 45 - 59.5 Hz | - |
| Load Control Relay Contacts (2) | - | 0-259 minutes | - |
| Overvoltage Dropout for Source 1 and Source 2 | - | 105 - 110% of nominal | - |
| Voltage Unbalance for Restore for Source 1 and Source 2 | - | 4 to 19% of nominal | - |
| Storage Temperature | - | (-40˚C - 90˚C ) | - |
| Underfrequency Dropout for Source 1 and Source 2 | - | 45 - 59.9 Hz | - |
| Overfrequency Restore for Source 1 and Source 2 | - | 50 - 62.9 Hz | - |
| Delay Transfer to Nonpreferred Source (W) | - | 0-5 minutes | - |
| Operating Temperature Ambient | - | (-20˚C to 50˚C) | - |
| Communications Interface - Optional | - | Serial RS-485 upt to 115.2 Kbps or TCP/IP (10/100 base-T) | - |
| Overvoltage Restore for Source 1 and Source 2 | - | 103 - 108% of nominal | - |
| Load Control Relay Contacts (1) | - | rated for 10A @ 24VDC or 120VAC | - |
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