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To ensure accuracy, please note that images may be representative. Refer to the product data sheet for detailed specifications.
| Manufacturer | TimeMark |
| Manufacturer Product Number | 18-120 |
| Description | Phase Monitor Relay; 3-Phase; 120V AC; 85...120V AC; 1C SPDT |
| Datasheet | Download Datasheet |
The TimeMark 18-120 is a 3-phase monitor for 120 V AC, 60 Hz systems. It drops its output relay out on phase loss, phase reversal and undervoltage and resets once the fault clears.
Trip points: undervoltage 85-120 V AC. Adjustment: field adjustable. Trip delay: undervoltage 1-30 s (adjustable). Restart: 1-300 s (adjustable). Reset: automatic.
Output: 1C SPDT, 10 A at 240 V AC resistive. Mounting: DIN rail or surface mount. Indicator: "FAULT" (red) and "NORM" (green) condition indicators. Approvals: UL Recognized (U.S. and Canada). It operates from -29 to +55 °C.
| Category | |
| Manufacturer | TimeMark |
| Model | 18 |
| Monitoring Function | Phase Loss, Phase Reversal and Undervoltage |
| Number of Phases | 3-Phase |
| Input Voltage | 120V AC |
| Undervoltage Trip Range | 85...120V AC |
| Undervoltage Trip Adjustment | Field adjustable |
| Restart Delay (s) | 1...300 s (adjustable) |
| Trip Delay - Undervoltage (s) | 1...30 s (adjustable) |
| Reset Method | Automatic |
| Status Indicator | "FAULT" (red) and "NORM" (green) condition indicators |
| Contact Configuration | 1C SPDT |
| Output Rating | 10 A at 240 V AC resistive |
| Number of Poles | 1 |
| Mounting Type | DIN Rail or Surface Mount |
| Dimensions | 3.91" x 2.20" x 2.30" H (3.18" / 1.78" mounting); dimensions have a tolerance of ± 0.06" |
| Operating Temperature (Storage) (°C) | -29...+55 |
| Approvals | UL Recognized (U.S. and Canada) |