Over & Under 3-Phase Monitor
The Model 269 Over & Under 3-Phase Monitor, SKU A269, offers essential protection for industrial systems. This device monitors for high voltage, low voltage, phase loss, and phase reversal, safeguarding critical equipment from electrical anomalies. Its adjustable response time, ranging from 1 to 10 seconds, allows for precise application tuning to specific operational requirements. Operating reliably across a -20° to +130° F temperature spectrum, it ensures consistent performance in diverse industrial environments without compromise. The monitor features robust SPDT 10A output contacts at 240VAC resistive, providing reliable control capabilities for connected machinery. With a nominal AC voltage of 120VAC and adjustable voltage ranges (Upper 110-145V, Lower 80-115V), it integrates seamlessly into standard industrial setups. This unit is engineered for operational stability and extended system longevity, minimizing downtime.
3Ph Power Mon
Specifications
| Monitored Conditions | High Voltage, Low Voltage, Phase Loss & Phase Reversal |
|---|---|
| Warranty | 5 Year Unconditional Warranty |
| Nominal AC Voltage (phase to phase) | 120VAC |
| Adjustable Range - Upper | 110-145V |
| Adjustable Range - Lower | 80-115V |
| Frequency | 60Hz |
| Power Consumption | 1.5W |
| Transient Protection | 2500VRMS for 10ms |
| Repeat Accuracy | ± 0.1% of set point (fixed conditions) |
| Response Time | Adjustable from 1-10 seconds ±5% |
| Reset Time | 0.25 seconds |
| Reset Type | Automatic |
| Dead Band | Approximately 2% |
| Output Contacts | SPDT 10A at 240VAC resistive |
| Expected Relay Life (Mechanical) | 10 million operations |
| Expected Relay Life (Electrical) | 100,000 operations at rated load |
| Operating Temperature | -20° to +130° F |
| Humidity Tolerance | 0-97% w/o condensation |
| Enclosure Material | ABS Plastic |
| Mounting | Surface |
| Agency Approval | UL Listed & CSA Certified |





