A200-120V
The Model 200 3-Phase Voltage Unbalance Monitor provides essential protection for industrial systems. This device continuously monitors three-phase AC lines, detecting voltage imbalances that can lead to equipment damage or operational inefficiencies. Its adjustable unbalance threshold, ranging from 2% to 10%, allows for precise application tailoring. A rapid 100ms response time ensures prompt detection of anomalies, minimizing potential downtime. The integrated DPDT 10 amp contacts facilitate direct control of protective circuits, rated for 100,000 electrical operations at load. With a robust design, including transient protection up to 2500VRMS for 10ms and an operating temperature range of -20° to +131° F, the Model 200 maintains system integrity in demanding environments. Its automatic reset function further streamlines operational continuity, reducing manual intervention. The unit's compact dimensions and surface mounting simplify installation within existing control panels.
The Model 200 3-Phase Voltage Unbalance Monitor is designed to
continuously monitor a three-phase line for unbalanced voltage
conditions. This device will only energize the relay if an unbalance
exists. Zero volts on all three phases is considered a balanced
condition. This allows the Model 200 to be used with shunt breakers, so
that the breaker can shut off the main power without tripping the
monitor. The solid-state sensing circuit drives an internal
electromechanical relay. Indicator lights on the monitor show when the
voltage balance is within an acceptable range; when an unbalance exists;
and when the relay is actually tripped. When an acceptable voltage
balance is reapplied, the Model 200 will automatically reset the relay.
Out of stock
Specifications
| Nominal AC Voltages | 120VAC |
|---|---|
| Voltage Range | ± 15% |
| Frequency | 60Hz |
| Power Consumption (per phase) | 0.5W |
| Transient Protection | 2500VRMS for 10ms |
| Repeat Accuracy | ± 0.1% (fixed conditions) |
| Unbalance Adjustment | 2% to 10% |
| Response Time | 100ms |
| Reset Time | Fixed 1 sec |
| Dropout Time | Adjustable 0.2 to 20 seconds |
| Reset Type | Automatic |
| Dead Band | 0.5% max |
| Contact Rating | DPDT 10 amps at 240VAC resistive |
| Expected Relay Life (Mechanical) | 10 million operations |
| Expected Relay Life (Electrical) | 100,000 operations at rated load |
| Operating Temp | -20° to +131° F |
| Humidity Tolerance | 0-97% w/o condensation |
| Mounting | Surface |
| Enclosure Material | ABS plastic |
| Mounting Hole Diameter | 0.19 |
