Product Description
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| Product Information | Resources |
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| Specifications |
| Product Attribute | Attribute Value |
| Nominal voltage | 460 VAC |
| Trip Point | - |
| Power Consumption | - |
| Trip Point Tolerance | ± 2% |
| Frequency | 60Hz |
| Transient Protection | 2500 VRMS for 10ms |
| Repeat Accuracy | ±0.1% (fixed conditions) |
| Response Time | 50ms (set or reset) |
| Dead Band | Approx. 4% |
| Contact Rating | 10A@240VAC |
| Expected Relay Life | Mech:10 million operations Elec: 100,000 operations@rated load |
| Operating Temperature | - 20o to +131o F |
| Humidity Tolerance | 97% w/o condensation |
| Enclosure Material | ABS plastic |
| Agency Approvals | Recognized to U.S. and Canadian requirements under the Component Recognition Program of Underwriters Laboratories, Inc. |
| Series Features |
| MODEL 2581 3-Phase Monitor |
| Series Description: The Model 2581 3-Phase Monitor is designed to continuously monitor 3-phase power lines for phase loss, low voltage and phase reversal. The Model 2581 Monitor will detect phase loss on a loaded motor even when regenerated voltage is present. This device consists of a solid-state voltage and phase-angle sensing circuit, driving an electromechanical relay. When correct voltage and phase rotation are applied, the internal relay will energize. A fault condition will de-energize the relay. When the fault is corrected, the monitor will automatically reset . The Model 2581 3-Phase Monitor does not require a neutral connection and can be used with Wye or Delta configured systems. Low voltage trip point is factory set@10% below nominal. An LED indicator is provided for system troubleshooting. |
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