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Phase Monitoring Relays

Phase monitoring relays can be designed for use on single-phase AC or DC voltages to protect motors and connected equipment from over-voltage or under-voltage conditions. Three-phase voltage monitoring relays monitor over-voltage and under-voltage conditions, as well as phase loss, phase imbalances and phase reversal.

Schneider Electric Harmony Control Relays monitor and detect abnormal operating conditions concerning current, phase, voltage, frequency, liquid level, temperature, speed and pump control. This information allows users to initiate the necessary corrective actions before serious breakdowns occur. Settings can be configured digitally using the Zelio NFC App. Monitoring parameters can be set precisely to the desired value and time delay can be set to minutes, seconds or milliseconds. Harmony Control Relays are suitable for a wide range of applications including: packaging, lifts, textile, pumping, and water.

Phoenix Contact EMD Monitoring Relays are available for a wide range of monitoring tasks to keep them within limits or to avoid the consequences of errors. The operating states are indicated using colored LEDs. Errors that may occur can be sent to a control system via a floating contact or can shut down a part of the system. Some devices are equipped with startup and response delays in order to briefly tolerate measure values outside the set monitoring range.

Products

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$606.30
Eaton D65PLR480 - D65 Series Phase Loss Reversal Monitoring Relay, 240-480V voltage rating, Plug-in octal, DIN rail
$657.98
ABB 1SVR760489R8300 CM-MPN.72P THREE-PHASE MON.
$657.98
ABB 1SVR760488R8300 CM-MPN.62P THREE-PHASE MON.
$637.87
ABB 1SVR760487R8300 CM-MPN.52P THREE-PHASE MON.
$638.83
ABB 1SVR750489R8300 CM-MPN.72S THREE-PHASE MON.
$638.83
ABB 1SVR750488R8300 CM-MPN.62S THREE-PHASE MON.
$619.29
ABB 1SVR750487R8300 CM-MPN.52S THREE-PHASE MON.
$588.34
ABB 1SVR740885R4300 CM-MPS.23P THREE-PHASE MON.
$492.34
ABB 1SVR740885R3300 CM-MPS.21P THREE-PHASE MON.
$492.34
ABB 1SVR740885R1300 CM-MPS.11P THREE-PHASE MON.
$565.10
ABB 1SVR740884R4300 CM-MPS.43P THREE-PHASE MON.
$472.20
ABB 1SVR740884R3300 CM-MPS.41P THREE-PHASE MON.