Product Description
Description: Phase Monitor Relays • Input Voltage: 480VAC • Adjustment Range: 380-500VAC • Frequency: 60Hz • Power Consumption (per phase): 1.5W • Output contacts : SPDT 10A at 240VAC resistive • Mounting : DIN Rail or Surface Mount
| Product Information | Resources |
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| Specifications |
| Product Attribute | Attribute Value |
| Input Voltage | 480VAC |
| Adjustment Range | 380-500VAC |
| Frequency | 60Hz |
| Power Consumption (per phase) | 1.5W |
| Transient Protection | 2500 VRMS of 10ms |
| Repeat Accuracy | ± 0.1% of setpoint (fixed conditions) |
| Response Time | 0.5 seconds |
| Reset Time | Short cycle restart delay - 2 seconds R versions - 5 minutes |
| Reset Type | Automatic |
| Dead Band | 0.02 |
| Output contacts | SPDT 10A 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 | 97% w/o condensation |
| Enclosure Material | ABS plastic |
| Mounting | DIN Rail or Surface Mount |
| Weight | 5 oz. |
| Series Features |
| MODEL 158 MODEL 158R 3-Phase Monitor |
| Series Description: The Model 158 continuously monitors 3-phase power lines for abnormal conditions. When properly adjusted, the Model 158 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 electro-mechanical 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 158 does not require a neutral connection, and can be used with Wye or Delta systems. Four versions cover 120V, 208/240V, 480V (60Hz) and 380V (50Hz). Voltage ranges are sufficient to allow for proper adjustment to existing conditions. A front-mounted L E D failure indicator is provided. The R versions of the Model 158 Monitor have an additional LED indicator for RESTART, and a 5 minute short cycle timer, to delay restarting the motor. The Model 158 can be DIN Rail or Surface Mounted. |
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