| RS PRO | Voltage | 1 | - | SPDT | 12 → 24V dc | Undervoltage | DIN Rail | - | - | - | - | 0 → 30s | - | - | - | - | L | - | - | - | - |
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| RS PRO | Phase, Voltage | 3 | - | DPDT | - | Overvoltage, Undervoltage | DIN Rail | - | - | - | Phase Failure, Phase Sequence | - | - | - | - | - | - | - | - | - | - |
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| RS PRO | Current | 1 | - | SPDT | - | - | DIN Rail | 1A | 10A | Overcurrent, Undercurrent | - | 0.1 → 30s | 48 → 63Hz | - | - | - | L | - | - | - | - |
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| RS PRO | Phase, Voltage | 3 | - | SPDT | - | Overvoltage Protection, Undervoltage Protection | DIN Rail | - | - | - | Phase Loss, Phase Sequence, Phase Asymmetry | 2 → 999s | - | - | - | - | - | - | - | - | Overfrequency, Underfrequency |
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| RS PRO | Voltage | 1 | - | SPDT | - | Overvoltage, Undervoltage | DIN Rail | - | - | - | - | 0.2 → 10s | 48 → 63Hz | - | - | - | L | - | - | - | - |
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| RS PRO | Voltage | 3 | - | DPDT | - | Overvoltage Protection, Undervoltage Protection | DIN Rail | - | - | - | - | 2 → 999s | - | - | - | - | - | - | - | - | - |
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| RS PRO | Voltage | 1 | - | SPDT | Maximum of 500 V | Overvoltage, Undervoltage | DIN Rail | - | - | - | - | 0.1 → 30s | 48 → 63Hz | - | - | - | L | - | - | - | - |
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| RS PRO | Voltage | Single | - | - | 220V ac | - | DIN Rail | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
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| RS PRO | Phase, Voltage | 3 | - | SPDT | - | Undervoltage | DIN Rail | - | - | - | Phase Failure, Phase Sequence | 0.2 → 10s | 48 → 63Hz | - | - | - | L | - | - | - | - |
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| RS PRO | Phase | 3 | - | SPDT | - | Overvoltage Protection, Undervoltage Protection | DIN Rail | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
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| RS PRO | Voltage | 3 | - | DPDT | - | Overvoltage, Undervoltage | DIN Rail | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
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| RS PRO | Phase, Voltage | 3 | - | SPDT | Maximum of 280 V | Undervoltage | DIN Rail | - | - | - | Phase Failure, Phase Sequence | 100ms | 48 → 63Hz | - | - | - | L | - | - | - | - |
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| RS PRO | Phase, Voltage | 3 | - | SPDT | - | Overvoltage, Undervoltage | DIN Rail | - | - | - | Phase Failure, Phase Sequence | 0.2 → 10s | 48 → 63Hz | - | - | - | L | - | - | - | - |
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| RS PRO | Phase | 3 | - | - | - | - | DIN Rail, Surface Mount | - | - | - | Phase Failure, Phase Sequence | - | - | - | - | - | - | - | - | - | - |
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| RS PRO | Voltage | 3 | - | DPDT | - | Overvoltage Protection, Undervoltage Protection | DIN Rail | - | - | - | - | 2 → 999s | - | - | - | - | - | - | - | - | - |
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| RS PRO | Phase, Voltage | 3 | - | DPDT | 243 → 540 V | Undervoltage | DIN Rail, Surface Mount | - | - | - | Phase Failure, Phase Sequence | 0.2 → 10s | - | - | - | - | - | - | - | - | - |
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| RS PRO | Phase | 3 | - | SPDT | Phase Loss, Voltage Assemmetry | - | DIN Rail | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
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| Crouzet | Voltage | 3 | - | SPDT | 183 → 528V ac | Overvoltage, Undervoltage | DIN Rail | - | - | - | - | 0.3 → 30s | - | - | - | - | M3US | - | - | - | - |
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| Phoenix Contact | Voltage | 1 | - | SPDT | 0 → 300V ac/dc | Undervoltage | - | - | - | - | - | 0.2 → 10s | - | - | - | - | EMD-SL-V-UV-300 | - | - | - | - |
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| Carlo Gavazzi | Current, Voltage | - | - | SPDT | 0.4 → 500 V ac, 2 → 500V dc | Overvoltage | DIN Rail | - | - | Overcurrent | - | <300ms | - | - | - | - | PUA01 | - | - | - | - |