Current Unbalance Detector
The Model 2722 Current Unbalance Detector provides essential monitoring for 3-phase AC current systems. This device compares three single-phase motors and detects open 3-phase heating elements, preventing potential equipment damage and operational inefficiencies. With an input voltage range of 190-250VAC and a frequency range of 50-400Hz, it offers broad applicability across various industrial setups. Its robust design includes 2500V transient protection for 10ms, ensuring system integrity against electrical disturbances. The unit features an adjustable unbalance detection from 2% to 25% and a configurable trip delay from 0.2 to 20 seconds, allowing precise system integration and response customization. Operating reliably from -20° to +131° F with 0-97% humidity tolerance, the Model 2722 maintains consistent performance in diverse industrial environments, contributing to sustained operational uptime.
Ph Unbal Detector
Specifications
| Input Voltage | 240VAC |
|---|---|
| Input Voltage Range | 190-250VAC |
| Power Consumption | 1.5W |
| VA Burden | 0.5VA per phase |
| Frequency Range | 50 - 400Hz |
| Current Range | 1 - 5 amps AC |
| Transient Protection | 2500V for 10ms |
| Unbalance Adjustment | 2% to 25% |
| Trip Delay | 0.2 to 20 seconds ± 5% |
| Output Contact Form | DPDT |
| Output Contact Rating | 10A at 240VAC resistive |
| Expected Relay Life (Mechanical) | 10 million operations |
| Expected Relay Life (Electrical) | 100,000 at rated load |
| Operating Temperature | -20° to +131° F |
| Humidity Tolerance | 0-97% w/o condensation |
| Enclosure Material | ABS plastic |
| Agency Approval | UL Recognized |
| Agency Approval | CSA Certified |
| Function | Monitors 3-phase AC Current |
| Function | Compares Three Single-phase Motors |
| Function | Detects Open 3-phase Heating Element |
| Reset Type | Automatic or Manual Reset |
