3-Phase Monitor with Trip & Restart Delays
The MODEL 18 3-Phase Monitor, SKU 18-208/240, provides essential protection for industrial equipment. This device detects critical conditions including phase loss, low voltage, and phase reversal, safeguarding machinery from potential damage. Its automatic reset function minimizes downtime, ensuring continuous operation. Configurable trip delays from 1 to 30 seconds and restart delays from 1 to 300 seconds allow for precise system integration and operational flexibility. Operating at 208/240VAC nominal, with an adjustment range of 160-240VAC, it accommodates various power supply conditions. The unit features SPDT 10 amp output contacts and maintains performance across an operating temperature range of -20° to +131° F. Transient protection up to 2500VAC for 10ms enhances durability. Its robust design, low 2.4W power consumption, and five-year warranty underscore its reliability in demanding industrial environments. This monitor is a critical component for maintaining system integrity.
3Ph Monitor
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 | 60Hz |
| 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" |
