Phase Failure Relay

A microcontroller-based universal 3-phase monitor for protecting 3-phase motors from abnormal power conditions. It can detect under voltage, over voltage, voltage unbalance, reverse phase, and single-phasing even when regenerated voltage is present. Adjustable trip and restart delays prevent nuisanc

Low Voltage, Phase Loss & Phase Reversal Relay, 440 to 480VAC 3Ø, 50/60 Hz, DPDT 240VAC Contacts, 5 Second Trip Time, Screw Terminals, Surface Mounting

Low Voltage, Phase Loss & Phase Reversal Relay, 440 to 480VAC 3Ø, 50/60 Hz, SPDT 240VAC Contacts, Screw Terminals, Surface Mounting

Phase Failure Relay, UL Listed File Number E164353 CCN NKCR - CSA Certified File Number LR89150 Class 321107 - CE Marked, Control Voltage: 220-240VAC@50/60Hz, 5A, 580V, 2 C/O DPDT, Mounting: Rail or Panel, Height: 3.07 Inches, Depth: 3.15 Inches, Width: 0

Phase Failure Relay, UL Listed File Number E164353 CCN NKCR - CSA Certified File Number LR89150 Class 321107 - CE Marked, Control Voltage: 380-440 V @ 50-60 Hz, 5A, 580V, 2 C/O DPDT, Mounting: Rail or Panel, Height: 3.07 Inches, Depth: 3.15 Inches, Width:

Phase Failure Relay, UL Listed File Number E164353 CCN NKCR - CSA Certified File Number LR89150 Class 321107 - CE Marked, Control Voltage: 380-440 V @ 50-60 Hz, 5A, 580V, 2 C/O DPDT, Mounting: Rail or Panel, Height: 3.07 Inches, Depth: 3.15 Inches, Width:

Phase Loss & Phase Reversal Relay, 440 to 480VAC 3Ø, 50/60 Hz, DPDT 240VAC Contacts, Screw Terminals, Surface Mounting

The 250A is a 3-phase, auto-ranging, dual-range voltage monitor that protects 190-480VAC, 50*/60Hz motors regardless of size from low and high voltage, unbalance/single-phase, and reverse-phase. The product provides a user selectable nominal voltage setpoint and the voltage monitor automatically sel

The Model 158 continuously monitors 3-phase power lines for abnormal conditions. When properly adjusted, the Model 158 monitor will detect phase loss on a loaded motor even when regenerated voltage is present. This device consists of a solid-state voltage and phase-angle sensing circuit, driving an

The Model 19 continuously monitors 3-phase power lines for abnormal conditions. When properly adjusted, the Model 19 monitor will detect phase loss on a loaded motor even when regenerated voltage is present. This device consists of a microcontroller with a voltage and phase-angle sensing circuit, dr

The Model 19 continuously monitors 3-phase power lines for abnormal conditions. When properly adjusted, the Model 19 monitor will detect phase loss on a loaded motor even when regenerated voltage is present. This device consists of a microcontroller with a voltage and phase-angle sensing circuit, dr

The Model 2500 3-Phase Monitor is designed to continuously monitor 3-phase power lines for abnormal conditions. This device features solid-state voltage and phase-angle sensing circuits, which drive a SPDT electromechanical output relay. When the correct voltage and phase sequence is applied to a sp

The Model 2501 3-Phase Monitor is designed to continuously monitor 3-phase power lines for abnormal conditions. This device features solid-state voltage and phase-angle sensing circuits, which drive a SPDT electromechanical output relay. When the correct voltage and phase sequence is applied to a sp

The Model 257 continuously monitors 3-phase power lines for abnormal conditions. When properly adjusted, the Model 257 monitor will detect phase loss on a loaded motor even when regenerated voltage is present. This device consists of a solid-state voltage and phase-angle sensing circuit, driving an

The Model 263 continuously monitors 3-phase power systems for phase loss, low voltage and phase reversal. The monitor consists of a solid-state sensing circuit, driving an electromechanical relay. Applying correct voltage and phase rotation energizes the relay. When properly adjusted, a fault condit

The Model 263 continuously monitors 3-phase power systems for phase loss, low voltage and phase reversal. The monitor consists of a solid-state sensing circuit, driving an electromechanical relay. Applying correct voltage and phase rotation energizes the relay. When properly adjusted, a fault condit