2581-220V
The Model 2581-220 3-Phase Monitor provides essential protection for industrial equipment. This device accurately detects critical conditions including phase loss, low voltage, and phase reversal, safeguarding machinery from potential damage. Its encapsulated circuitry enhances durability in demanding environments, ensuring long-term operational stability. With a rapid 50ms response time, the monitor ensures prompt system intervention upon fault detection. The integrated LED status indicator offers immediate operational feedback, simplifying diagnostics. Installation is streamlined via 1/4" quick-connect terminals. This unit operates reliably across a wide temperature range of -20° to +131° F and features robust transient protection up to 2500 VRMS. A 5-year unconditional warranty underscores its robust design and consistent performance, minimizing downtime and maintenance concerns for critical three-phase applications.
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 at 10% below nominal. An LED indicator is provided for
system troubleshooting.
Out of stock
Specifications
| Nominal Voltage (phase to phase) | 220VAC |
|---|---|
| Trip Point | 200VAC |
| Power Consumption | 1.65W |
| Function | Detects Phase Loss, Low Voltage and Phase Reversal |
| Circuitry | Encapsulated Circuitry |
| Indicator | LED Status Indicator |
| Terminals | 1/4" Quick-connect Terminals |
| 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 | 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 | 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. |
| Warranty | 5-year Unconditional Warranty |
