274-5-240VAC-M
The Model 274 3-Phase Current Monitor provides essential oversight for industrial electrical systems. Operating at 240VAC, it monitors three simultaneous currents within a 1 to 5 amp range, ensuring precise control. This device supports a frequency range of 50 to 400Hz, accommodating diverse application requirements. Its SPDT 10A at 240VAC resistive contact rating ensures robust switching capabilities for connected loads. Users can configure reset options for automatic or manual operation, enhancing system flexibility and response. With an expected mechanical relay life of 10 million operations and an electrical life of 100,000 operations at rated load, the Model 274 offers sustained performance and reduced maintenance needs. It functions reliably across an operating temperature range of -20° to +131° F, suitable for various industrial environments. Power consumption is limited to 3W maximum.
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 | 240VAC |
|---|---|
| Input Voltage Range | 190-250V |
| 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 |
