Model 19 3-Phase Monitor with Trip & Restart Delays
19-480
The Model 19 3-Phase Monitor provides essential protection for industrial equipment. This device detects critical conditions such as phase loss, low voltage, and phase reversal, safeguarding machinery from potential damage. Its automatic reset functionality ensures continuous operation without manual intervention following a fault correction. Users can configure both trip and restart delays, ranging from 1-30 seconds and 1-300 seconds respectively, to suit specific application requirements. Operating at 480VAC nominal, it is compatible with both Wye and Delta systems, requiring no neutral connection. This monitor offers a reliable solution for maintaining system integrity.
3Ph Adj Trp/Rstrt Dly
DOWNLOADS:
Specifications
| Detection | Phase loss, low voltage, phase reversal |
|---|---|
| Reset Type | Automatic |
| Warranty | Five year unconditional |
| Nominal AC (phase to phase) | 480VAC |
| Adjustment range | 380-480VAC |
| Frequency | 60Hz |
| Power consumption | 3.7W |
| Transient protection | 2500VAC for 10ms |
| Repeat accuracy | ± 0.1% of set point (fixed conditions) |
| Trip delay | 1-30 sec. |
| Restart Delay | 1-300 sec. |
| Dead band | Approximately 2% |
| Output contacts | SPDT 10 amps at 240VAC resistive |
| Expected relay life (Mechanical) | 10 million operations |
| Expected relay life (Electrical) | 100,000 operations at rated load |
| Operating temp | -20° to +131° F |
| Humidity tolerance | 0-97% w/o condensation |
| Enclosure material | NORYL plastic cover; 6/6 Nylon base |
| Mounting | 8-pin socket (**sold separately) |
| Accessory Socket | Order 8-pin socket number 51X120 |
| System Compatibility | Wye or Delta systems |
| Neutral Connection | Not required |
| Indicators | FAULT and NORM condition indicators |
FAQs
What types of electrical anomalies does the Model 19 monitor detect?
The Model 19 detects phase loss, low voltage, and phase reversal conditions in 3-phase systems.
What are the adjustable delay ranges for trip and restart functions?
The trip delay is adjustable from 1 to 30 seconds, and the restart delay can be set from 1 to 300 seconds.
Is the Model 19 compatible with different 3-phase system configurations?
Yes, the Model 19 is compatible with both Wye and Delta electrical systems, and a neutral connection is not required for its operation.
