3-Phase Monitor with Trip & Restart Delays
The MODEL 18 3-Phase Monitor, SKU 18-208/240-400, provides essential protection for industrial systems. Designed for 208/240VAC nominal AC at 400Hz, it detects phase loss, low voltage, and phase reversal, safeguarding critical equipment. Its automatic reset functionality minimizes downtime, while adjustable trip delays from 1-30 seconds and restart delays from 1-300 seconds allow for precise system integration. The unit features SPDT 10 amp output contacts, ensuring reliable control. With a compact form factor and DIN rail or surface mount options, installation is flexible. This monitor maintains operational integrity across a wide -20° to +131° F temperature range, offering consistent performance in demanding environments. Its robust design and precise monitoring capabilities contribute to enhanced system longevity and reduced maintenance requirements, making it a valuable component for maintaining continuous operation.
3Ph Mon
Specifications
| Detection | Phase loss, low voltage, phase reversal |
|---|---|
| Reset Type | Automatic reset |
| Warranty | Five year unconditional warranty |
| Nominal AC (phase to phase) | 208/240VAC |
| Adjustment range | 160-240VAC |
| Frequency | 400Hz |
| Power consumption | 2.4W |
| 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 temperature | -20° to +131° F |
| Humidity tolerance | 0-97% w/o condensation |
| Terminal Torque | 3.5 in. lbs. maximum |
| Wire Type | Stranded or solid 14-28 AWG, 1/terminal |
| Enclosure material | NORYL plastic |
| Mounting | DIN Rail or Surface Mount |
| Low Current Option | Models ordered with suffix '/SG' will have silver with gold flash contacts (SPDT 5 amps at 120VAC resistive) |
| Agency Approval | UL Recognized (U.S. and Canada) |
| Usage Environment | For use in a Pollution Degree 2 Environment |
| Dimension Tolerance | ± 0.06" |
