Product Description
Description: Phase Monitor Relays • Nominal AC Voltage (phase to phase): 480VAC • Adjust Range (VAC): 380-480V • Frequency: 60Hz • Power Consumption: 4.5W • Reset: Gold-Manual • Output Contacts : All SG models: SPDT silver w/gold flash 5 amps at 240VAC resistive All other models: SPDT 10 amps at 240VAC resistive • Mounting : surface
| Product Information | Resources |
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| Specifications |
| Product Attribute | Attribute Value |
| Nominal AC Voltage (phase to phase) | 480VAC |
| Adjust Range (VAC) | 380-480V |
| Frequency | 60Hz |
| Power Consumption | 4.5W |
| Reset | Gold-Manual |
| Transient Protection | 2500 VRMS for 10ms |
| Repeat Accuracy | ± 0.1% of setpoint (fixed conditions) |
| Response Time | 50ms |
| Dead Band | Approximately 2% |
| Output Contacts | All SG models: SPDT silver w/gold flash 5 amps at 240VAC resistive All other models: SPDT 10 amps at 240VAC resistive |
| Expected Relay Life | Mech: 10 million operations Elec: 100,000 operations at rated load |
| Operating Temp | - 20° to +131° F |
| Humidity Tolerance | 0 - 97% w/o condensation |
| Enclosure Material | ABS plastic |
| Mounting | surface |
| Weight | 9.5 oz |
| Agency Approvals | ALL VERSIONS - UL Recognized and CSA Certified |
| Series Features |
| MODEL 263 3-Phase Monitor |
| Series Description: The Model 263 continuously monitors 3-phase power systems for phase loss, low voltage and phase reversal. The monitor consists of a solid-state sensing circuit, driving an electromechanical relay. Applying correct voltage and phase rotation energizes the relay. When properly adjusted, a fault condition will cause the relay to de-energize, even when regenerated voltage is present. When the fault is corrected, the Model 263 automatically resets. A manual reset version and an option for gold-plated contacts are also available. The Model 263 does not require a neutral connection, and can be used on Wye or Delta systems. Each of the five different voltage ranges is adjustable to allow the monitor to be set for existing conditions. NORMAL and TRIP LED indicators are provided to aid in adjustment and system troubleshooting. |
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