Description
Time Mark 16-1-H-P
Voltage and Frequency Monitors

- Universal range: 12–30 or 30–277 VAC/VDC
- 8 pin plug-in case – 2 SPDT relays
- Monitors AC or DC single phase voltages for over, under or over/under voltage
- Adjustable Trip & Restart, can be disabled
- 5 LEDs: Trip, Normal & Delay status
The Model 16-1-X-X protects equipment from Over, Under, Over/Under voltage or rapid cycling conditions that can damage valuable equipment. Trip and restart delays are adjustable, or can be disabled. Input voltage ranges are 12-30 VAC/VDC or 30-277 VAC/VDC. The 8 -pin plug-in has 2 SPDT relays, while the surface mount case has 1 SPDT relay. See Ordering Information for details. 8-pin plug-in versions require an 8-pin socket, such as Time Mark’s Model 51X120.
A proprietary microcontroller-based sensing circuit deenergizes the relay(s) after the trip delay (if enabled) upon detection of harmful voltage conditions. The relay(s) will energize after power line conditions return to an acceptable level and the restart delay time has expired (if enabled). Trip delays can be added to avoid nuisance tripping while restart delays can be used to stagger the startup of equipment or protect compressors. Time Mark’s proprietary microcontroller-based design offers maximum flexibility with an easy to use interface.
| Dimensions | Application |
![]() | ![]() |
Voltage Frequency Monitor Relays | |
|---|---|
| Voltage Frequency Monitors Function | Over and Under, Over or Under |
| Time Mark Mounting | 8-pin |
| Nominal Voltage (monitor relays) | 30-277 VAC/VDC |
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. Should this device fail to operate for any reason, we will repair it for five years from the date of manufacture. For complete warranty details, see the Terms and Conditions of Sales page in the front section of the Time Mark catalog or contact Time Mark at 1-800-862-2875. |
| Product Weight | 0.38 LBS |
| Product Height | 3.52 IN |
| Product Length | 2.44 IN |
| Product Width | 1.75 IN |
| Country of Origin | United States |
| Shipping Height | 3.52 IN |
| UPC | 662917006621 |
| Shipping Length | 2.44 IN |
| Shipping Width | 1.75 IN |



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