Get A Quote
My Account
To ensure accuracy, please note that images may be representative. Refer to the product data sheet for detailed specifications.
| Manufacturer | TimeMark |
| Manufacturer Product Number | B252B |
| Description | Phase Monitor Relay; 3-Phase; 120V AC; 85...120V AC; 1 SPDT + 1 SPST-NO |
| Datasheet | Download Datasheet |
The TimeMark B252B 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: phase loss / reversal 0.05 s. Reset: automatic.
Output: 1 SPDT + 1 SPST-NO, 5 A at 115 V AC resistive. Mounting: plug-in, on an 8-pin octal (TimeMark 51X120 socket) base. Indicator: TRIP (red) and NORMAL (green) LEDs. Approvals: UL Recognized (U.S. & Canadian).
| Category | |
| Manufacturer | TimeMark |
| Model | 252 |
| Part Status | Discontinued |