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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 | 272-24 |
| Description | Current Monitor Relay; 3-Phase Current Unbalance; 1-5 A AC per phase; 24V AC |
| Datasheet | Download Datasheet |
The TimeMark 272-24 is a 3-phase current unbalance detector for 1-5 A AC per phase. It compares the currents in the three lines and trips when the unbalance exceeds its setting.
Sensing: direct 1-5 A; external CT above 5 A (TimeMark 276). Control supply: 24 V AC. Line: 20-28 V AC. Trip delay: 0.5-10 s (adjustable, ±20%). Reset: automatic.
Output: 1C SPDT, 10 A at 240 V AC resistive. Mounting: surface mount, screw terminals. Indicator: UNBALANCED and TRIPPED LEDs. It operates from -29 to +55 °C.
| Category | |
| Manufacturer | TimeMark |
| Model | 272 |
| Monitoring Function | 3-Phase Current Unbalance |
| Sensor Type | Direct 1-5 A; external CT above 5 A (TimeMark 276) |
| Setting Adjustment | Unbalance trip 2-25% (front panel) |
| Current Range | 1-5 A AC per phase |
| Input Voltage | 24V AC |
| Input Operating Range | 20-28V AC |
| Trip Delay | 0.5...10 s (adjustable, ±20%) |
| Reset Method | Automatic |
| Status Indicator | UNBALANCED and TRIPPED LEDs |
| Contact Configuration | 1C SPDT |
| Number of Poles | 1 |
| Output Rating | 10 A at 240 V AC resistive |
| Mounting Type | Surface Mount |
| Termination Style | Screw Terminal |
| Rated Power | 1.5 W |
| Operating Temperature (Storage) (°C) | -29...+55 |