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This device consists of a solid-state voltage and phase-angle sensing circuit, driving an electromechanical relay. When correct voltage and phase rotation are applied, the internal relay will energize.
When correct voltage and phase rotation are applied, the internal relay will energize. A fault condition will de-energize the relay. When the fault is corrected, the monitor will automatically reset. The Model 158 does not require a neutral connection, and can be used with Wye or Delta systems.
The Model 253 Reverse Phase Relay is a solid-state sensing device designed for installation in equipment using 3-phase power. This unit is used where it is desirable to have a contact closure indicating that the proper phase rotation sequence has been applied. The relay closes when the proper sequence (ABC) is
This device consists of a solid-state voltage and phase-angle sensing circuit, driving an electromechanical relay. When the correct voltage and phase rotation are applied, the internal relay will energize. A fault condition will de-energize the relay.
Monitors 3-phase power lines for abnormal conditions. When properly adjusted, 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 electromechanical relay.
Time Mark has a variety of 3-phase relays that can offer protection against phase loss, phase reversal, phase unbalance and under/over voltage. Phase-angle and voltage sensing circuits are used to detect phase loss even when regenerative loads cause little measurable voltage reduction between phases. All models feature automatic reset.
The Time Mark EX263M 3-Phase Monitor Relay from Thermal Devices, an authorized Time Mark distributor. Time Mark has a variety of 3-phase relays that can offer protection against phase loss, phase reversal, phase unbalance and under/over voltage.
