3-Phase Monitor with Adjustable Trip & Restart Delays
The 22-HM 3-Phase Monitor offers critical protection for industrial three-phase systems. Its adjustable trip delay, configurable from 1 to 30 seconds, enables precise response to voltage and unbalance faults, preventing premature shutdowns. A wide-ranging restart delay, from 1 to 500 seconds, facilitates controlled system re-engagement after a fault, minimizing operational disruption. This unit operates reliably across a 475-600 VAC range at 50/60Hz, ensuring broad compatibility. Manual reset functionality provides operators with direct control over system restoration. Featuring 2X SPDT 10A output contacts, it integrates effectively into diverse control circuits. The monitor safeguards equipment from under/over voltage, voltage unbalance, and phase loss, contributing to system longevity and operational stability. Its robust design supports consistent performance in demanding industrial settings.
Dpdt 600V Universal 3-Ph
Specifications
| Reset Type | Manual Reset |
|---|---|
| Operating Voltage | 475-600 VAC |
| Power Consumption | 6W at 600V |
| Auto Ranges | No |
| Frequency | 50/60Hz |
| Type of Measurement | RMS |
| Under Voltage Trip | 90% ±1% (% of setpoint) |
| Under Voltage Reset | 93% ±1% (% of setpoint) |
| Over Voltage Trip | 110% ±1% (% of setpoint) |
| Over Voltage Reset | 107% ±1% (% of setpoint) |
| Voltage Unbalance Trip | 2-8%, adjustable (conforms to NEMA) |
| Voltage Unbalance Reset | Trip setting minus 0.7% |
| Trip Delay (Voltage/Unbalance Faults) | 1-30 sec., adjustable |
| Trip Delay (Single-Phasing Faults) | 1 sec., fixed |
| Trip Delay (Unbalance > 15%) | 1 sec., fixed |
| Restart Delay | 1-500 sec., adjustable |
| Manual Reset Input | 5V open circuit/500µA short circuit |
| Manual Reset Requirement | External N.O. momentary pushbutton required |
| Output Contacts | 2X SPDT 10A at 240VAC resistive |
| Operating Temperature | -20° to +140° F |
| Humidity Tolerance | 0-97% w/o condensation |
| Terminal Torque (Power and Relay) | 9 in lbs max |
| Terminal Torque (Manual Reset) | 5.3 in lbs max |
| Wire Type (Power and Relay) | 12-22 AWG |
| Wire Type (Manual Reset) | 12-30 AWG |
| Enclosure | Noryl plastic |
| Mounting | Surface Mount |
| Additional Options | /SG = Silver with Gold Flash Contacts |
| System Compatibility | Wye or Delta systems |
| Neutral Connection | Not required |
| Dimension Tolerance | ± 0.06 in |
| Mounting Hole Diameter | 0.25 in |
| Warranty | 5-year Unconditional Warranty |
