Description
Time Mark 25 – True RMS 3-Phase Monitor

- True RMS 3-phase monitor
- Manual reset
- DPDT contacts
- Voltage range: 80-550VAC
- User selectable relay operation options
- Phase sensing: Phase Reversal, Phase Loss, PHase Unbalance
The Time Mark 25 True RMS 3-Phase Monitor has a display that shows the voltage with an accuracy of +/- 0.5%. The display is updated every second and re-initialized every 30 seconds. Model 25 has a rotary encoder with a switch on the unit. By pressing the encoder switch for more than 5 seconds, the unit will enter the setup mode. This unit has a user-selectable relay option for High-Low or DPDT. It can also be user-selected to energize on fault or de-energize on fault. The user can select automatic or manual restart on the Model 25. The Model 25 True RMS 3-Phase Monitor can be either calibrated using a True RMS Voltmeter or can be restored to factory defaults in the field.
Typical Application – Monitor and Control:

Typical Application – Monitor and Alarms:

Three Phase Monitor Relays | |
|---|---|
| 3-Phase Monitor Relay Function | Phase Loss/Reversal/Unbalance/Under & Over Voltage |
| Max Nominal Phase to Phase Voltage (monitors) | 550 |
| Min Nominal Phase to Phase Voltage (monitors) | 80 |
| TIME MARK DELAY | Adjustable Trip Delay, Adjustable Trip Restart Delay |
| Monitor Relay Contact Type | DPDT |
| Electrical Approval (monitor relays) | cUL, UL |
| Time Mark Mounting | DIN |
Product General Attributes | |
| Warranty | 5 YEARS |
| Warranty Details | This product is warranted to be free from defects in materials and workmanship, and is covered by our exclusive 5-year Unconditional Warranty. |
| Safety Approval | UL |
| Product Weight | 0.53 LBS |
| Product Height | 3.54 IN |
| Product Length | 4.14 IN |
| Product Width | 2.79 IN |
| Shipping Weight | 0.60 LBS |
| Country of Origin | United States |
| Shipping Height | 3.54 IN |
| Shipping Length | 4.14 IN |
| Shipping Width | 2.79 IN |






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