274-5-120VAC-M
The Model 274 3-Phase Current Monitor provides essential protection for industrial applications. Designed for 120VAC systems, it accurately monitors three simultaneous currents within a 1 to 5 amp range. Its broad 50 to 400Hz frequency range accommodates diverse operational environments, ensuring compatibility with various machinery. Users can configure the trip delay from 0.2 to 20 seconds, allowing precise response tailoring to specific equipment needs and operational parameters. The unit offers both automatic and manual reset options, providing operational flexibility to suit different control strategies. Featuring a robust SPDT 10A at 240VAC resistive contact rating, it ensures reliable switching and control integration. Constructed with durable ABS plastic, the monitor maintains consistent performance across an operating temperature range of -20° to +131° F. This device contributes to system longevity by detecting current anomalies, thereby mitigating potential equipment damage and reducing costly downtime in critical industrial processes.
The Model 274 3-Phase Current Monitor is designed to monitor all legs of
a 3-phase line, and can also be used to monitor three individual
single-phase lines. The output relay will energize on an over-current
condition on any one of the 3 monitored lines. Two indicator lamps are
provided to show when an over-current condition exists and when the
output relay is tripped. An adjustable trip delay of 0.2 to 20 seconds
is provided to reduce nuisance tripping. Matching current transformers
are available to extend the range of the device to most any range up to
1,000 amps. The Model 274 is offered in either manual or automatic reset
models. An external power supply of 24, 120 or 230 VAC powers the device.
Out of stock
Specifications
| Input Voltage | 120VAC |
|---|---|
| Input Voltage Range | 100-130V |
| Current Range | 1 to 5 amps |
| Power Consumption | 3W |
| Frequency Range | 50 to 400Hz |
| Dead Band | 4% |
| Trip Delay | 0.2 to 20 seconds |
| Reset | Automatic or Manual |
| Contact Rating | SPDT 10A at 240VAC resistive |
| Expected Relay Life (Mechanical) | 10 million operations |
| Expected Relay Life (Electrical) | 100,000 ops at rated load |
| Operating Temperature | -20° to +131° F |
| Enclosure Material | ABS plastic |
| Monitored Currents | 3 Simultaneous Currents |
| Config: Volts | 24VAC, 120VAC, 240VAC |
| Config: Reset | Auto, Manual |
