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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 | B2722 |
| Description | Current Monitor Relay; 3-Phase Current Unbalance; 1-5 A AC per phase; 120V AC |
| Datasheet | Download Datasheet |
The TimeMark B2722 is a 3-phase current unbalance detector for 1-5 A AC per phase. It compares the currents in the three lines; its relay stays energized while they are balanced and drops out after the trip delay when the unbalance exceeds its setting.
Sensing: direct 1-5 A; external CT above 5 A (TimeMark 276). Control supply: 120 V AC. Line: 100-130 V AC. Trip delay: 0.2-20 s (adjustable, ±5%). Reset: automatic; manual with an external N.C. switch.
Output: 2C DPDT, 10 A at 240 V AC resistive. Mounting: surface mount, screw terminals. Approvals: UL Recognized, CSA Certified. It operates from -29 to +55 °C.
| Category | |
| Manufacturer | TimeMark |
| Model | 2722 |
| 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 | 120V AC |
| Input Operating Range | 100-130V AC |
| Trip Delay | 0.2...20 s (adjustable, ±5%) |
| Reset Method | Automatic; manual with an external N.C. switch |
| Contact Configuration | 2C DPDT |
| Number of Poles | 2 |
| Output Rating | 10 A at 240 V AC resistive |
| Mounting Type | Surface Mount |
| Termination Style | Screw Terminal |
| Rated Power | 1.5 W max |
| Operating Temperature (Storage) (°C) | -29...+55 |
| Approvals | UL Recognized, CSA Certified |