Additional information
| Automatic Reset | |
|---|---|
| Certifications | |
| Contacts | 2x N.O. |
| Manual Reset | Yes |
| Mount | DIN, Surface Mount |
| Phase Sensing | |
| Trip Delay | |
| Trip Restart | Yes |
| Voltage Sensing | |
| Voltage Range |
20AA-HM
Categories: 20AA-Series, 3-Phase-MonitorsThe Model 20AA is a microcontroller-based universal 3-phase monitor for protecting 3-phase motors from abnormal power conditions. It can detect under voltage, over voltage, voltage unbalance, reverse phase, and single-phasing even when regenerated voltage is present. The Model 20AA includes adjustable trip and restart delays to prevent nuisance tripping during power fluctuations and short cycling in compressor applications. The LED status indicators and adjustment pots for Voltage Adjustment, % Unbalance, Restart Delay and Trip Delay are mounted on the front of the unit for easy access. The 20AA has 2 normally open (N.O.) isolated contacts.
Automatic or manual restart versions are available. The Model 20AA does not require a neutral connection and can be used on either Wye or Delta systems.
All versions of the Model 20AA are UL Recognized (U.S. and Canada) and are available with optional gold flashed silver contacts for low current applications.
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If Octopart does not currently display the Time Mark product you desire, please call us Toll-Free at (800) 862-2875 or use the Find a Distributor link on our website to find a distributor near you.
If Octopart does not currently display the Time Mark product you desire, please call us Toll-Free at (800) 862-2875 or use the Find a Distributor link on our website to find a distributor near you.
