Product Description
Description: Phase Monitor Relays • Nominal AC Voltage: 480 • Adjustment Range: 336-456V • Frequency : 50/60Hz • Unbalance adj range : 2 to 10% per NEMA specifications • Trip Delay adj range : 1 to 10 seconds (1 sec increments) • Power Consumption : 4.5W per phase • Output Contacts : SPDT 30 amps at 28VDC/300VAC 50/60Hz 5 amps at 480/600VAC 50/60Hz 0.75 PF • Mounting : Surface
| Product Information | Resources |
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| Specifications |
| Product Attribute | Attribute Value |
| Nominal AC Voltage | 480 |
| Adjustment Range | 336-456V |
| Frequency | 50/60Hz |
| Unbalance adj range | 2 to 10% per NEMA specifications |
| Trip Delay adj range | 1 to 10 seconds (1 sec increments) |
| Power Consumption | 4.5W per phase |
| Repeat Accuracy | ± 1% of full scale |
| Reset Time | 150ms nominal |
| Reset Type | Automatic |
| Dead Band | 2% of full scale |
| Output Contacts | SPDT 30 amps at 28VDC/300VAC 50/60Hz 5 amps at 480/600VAC 50/60Hz 0.75 PF |
| Operating Temp | - 4o to +131o F |
| Humidity Tolerance | 0-97% without condensation |
| Enclosure Material | ABS plastic |
| Weight | 2 lbs. 5 oz. |
| Mounting | Surface |
| Agency Approval | UL Listed to U.S. and Canadian safety standards |
| Series Features |
| MODEL 2500 MODEL 2501 3-Phase Monitor |
| Series Description: The Model 2500 3-Phase Monitor is designed to continuously monitor 3-phase power lines for abnormal conditions. This device features solid-state voltage and phase-angle sensing circuits, which drive a SPDT electromechanical output relay. When the correct voltage and phase sequence is applied to a specified Model 2500, the output relay will not energize. An under voltage, phase reversal, phase unbalance or phase loss condition will cause the output relay to energize, even if regenerated voltage is present. Complete power loss will not cause Model 2500 to trip. The 2501 version of this unit operates in fail-safe mode, and the contacts de-energize on a fault condition. A neutral connection is not required, allowing the Model 2500 or 2501 to be used with either Wye or Delta system configurations. Each option on the Model 2500 or 2501 monitor is adjustable throughout its operating range. The adjustment pots and LED indicators for VOLTAGE ADJUST, UNBALANCE ADJUST and TIME DELAY are mounted on the front of the unit for easy access. Seven versions of the Model 2500 or 2501 cover voltage ranges from 120 to 600 VAC, and are UL Listed and CSA Certified. |
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