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 CTS Series Automatic Transfer Switch |
 MX250 Microprocessor Controller |
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Technical Summary |
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| Rating Range | 40 to 4000A | Switch Dependent | - |
| Transfer Type | Open transition | Application Dependent | - |
| Switch Type | Contactor Based | Application Dependent | - |
Electrical Ratings |
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| Control Power | 40 to 4000 amperes, 2, 3 or 4 Poles | - | - |
| Enclosure Capability | NEMA 1, 3R, 4, 4X and 12 | - | - |
| System Voltage Application | Available to 600 VAC, 50 or 60 Hz | - | - |
| Applicable Testing | UL 1008 listed at 480 VAC CSA C22.2 No. 178 certified at 600 VAC IEC 947-6-1 listed through 480 VAC |
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Controller Specifications |
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| 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 | - | 90-100% of nominal | - |
| Delay for Engine Cool Down (U) | - | 0-60 minutes | - |
| 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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