Product Description
Description: Phase Monitor Relays • Operating Voltage: 190-480 VAC • Frequency: 50/60Hz • Type of Measurement : RMS • Auto Ranges : Yes • Under Voltage Trip Reset: 185-480VAC Trip setting +3% • Over Voltage Trip Reset: 208-528VAC Trip setting 3% • Voltage Unbalance Trip Reset: (conforms to NEMA) 6%, Fixed 5% Fixed • Output Contacts : 2X SPDT 10A at 240VAC resistive • Mounting : DIN Rail or Surface Mount
| Product Information | Resources |
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| Specifications |
| Product Attribute | Attribute Value |
| Operating Voltage | 190-480 VAC |
| Frequency | 50/60Hz |
| Type of Measurement | RMS |
| Auto Ranges | Yes |
| Under Voltage Trip Reset | 185-480VAC Trip setting +3% |
| Over Voltage Trip Reset | 208-528VAC Trip setting 3% |
| Voltage Unbalance Trip Reset | (conforms to NEMA) 6%, Fixed 5% Fixed |
| Trip Delay Time Over, Under, & Unbalanced Single-Phasing Faults Unbalance > 15% | 1-30 sec., adjustable 1 sec., fixed 1 sec., fixed |
| Restart Delay | 1-500 sec., adjustable |
| Reset | Automatic |
| Output Contacts | 2X SPDT 10A at 240VAC resistive |
| Power Consumption | 6W at 480VAC |
| Operating Temp | - 20o to +140o F |
| Humidity Tolerance | 0-97% w/o condensation |
| Terminal Torque | 9 in lbs max for power and relay terminals 4.4 in lbs max for manual reset terminals |
| Wire Type | 12-22 AWG for power and relay terminals 12-30 AWG for manual reset terminals |
| Enclosure | NORYL plastic |
| Mounting | DIN Rail or Surface Mount |
| Weight | 12.5 oz. |
| Low Current Options | Models ordered with suffix /SG have silver with gold flash contacts |
| Series Features |
| MODEL 22VB 3-Phase Voltage Band Monitor with Adjustable Trip & Restart Delays |
| Series Description: A microcontroller-based universal 3-phase voltage band monitor for protecting 3-phase motors of any size from abnormal power conditions. The Model 22VB can detect under voltage, over voltage, voltage unbalance, reverse phase, and single-phasing even when regenerated voltage is present. Status of the 3-phase system is indicated by LEDs . Relay operation is fail-safe, i.e. the two SPDT output contacts drop out when a fault condition or loss of power occurs. Under and over voltage trip points are both adjustable. The under voltage adjustment has two scales, 185-240VAC and 370-480VAC. The over voltage adjustment also has two scales, 208-264VAC and 416-528VAC. The Model 22VB will auto-range to the appropriate scale. Trip and restart delay adjustments are provided to preventing nuisance tripping during power fluctuations or short cycling in compressor applications. Voltage unbalance trip point is fixed at 6%. The Model 22VB does not require a neutral connection and can be used on either Wye or Delta systems. Operating power for the Model 22VB is drawn from phases A and C. |
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