Product Description
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| Product Information | Resources |
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| Specifications |
| Product Attribute | Attribute Value |
| Function | Current Unbalance |
| Input Voltage | 24 VAC |
| Input Voltage Range | 20-28VAC |
| Power Consumption | 1.5W max. |
| VA Burden | 0.5VA per phase |
| Frequency Range | 50 - 400Hz |
| Current Range | 1 - 5A AC |
| Transient Protection | 2500V for 10ms |
| Unbalance Adjustment | 2% to 25% |
| Trip Delay | 0.2 to 20 seconds ± 5% |
| Output Contacts | DPDT 10A@240VAC |
| Expected Relay Life | Mech: 10 million operations Elec: 100,000@rated load |
| Operating Temperature | - 20o to +131o F |
| Humidity Tolerance | 0-97% w/o condensation |
| Enclosure Material | ABS plastic |
| Weight | 1.35 lbs |
| Agency Approvals | UL Recognized CSA Certified |
| Series Features |
| MODEL 2722 Current Unbalance Detector |
| Series Description: The Model 2722 Current Unbalance Detector is designed to monitor 3-phase AC current (or compare three single-phase AC currents). A solid-state electronic sensing circuit drives an internal DPDT relay which energizes during normal, balanced conditions. An unbalanced condition will cause the relay to drop out. The Model 2722 accepts current inputs up to 5A and will consider zeroA as balanced (relay stays energized), making the device suitable for use with 3-phase heaters. The Model 2722 has adjustments for percent of unbalance and time delay before tripping. It will automatically reset upon restoration of correct current balance, or a normally-closed momentary switch can be connected for a manual reset. External CTs can be used to extend the operating current range. |
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