Phase Failure (Loss) Protective Relays and Monitoring Relays
from RS Components, Ltd.
Ph Failure, Seq + Under Volt Relay [See More]
- Voltage Sensitive Relay: Undervoltage
- Voltage Sensing Range: 280
- Power (Phase) Sensing: Phase Failure (Loss); Sequence
- Approvals: RoHS
from RS Components, Ltd.
Ph Fail Seq Und Over Volt + Time Del Rly [See More]
- Voltage Sensitive Relay: Overvoltage Protection; Undervoltage
- Frequency Sensing Range: 48
- Power (Phase) Sensing: Phase Failure (Loss); Sequence
- Approvals: RoHS
from RS Components, Ltd.
Monitoring relay 17.5mm [See More]
- Power (Phase) Sensing: Phase Failure (Loss); Sequence
- Approvals: RoHS
- Frequency Sensing Range: 45
from RS Components, Ltd.
Monitoring relay 17.5mm [See More]
- Power (Phase) Sensing: Phase Failure (Loss); Sequence
- Voltage Sensing Range: 100 to 240
- Current Sensing Range: 0.0500
- Approvals: RoHS
from RS Components, Ltd.
Monitoring relay 17.5mm [See More]
- Voltage Sensitive Relay: Overvoltage Protection; Undervoltage
- Approvals: RoHS
- Power (Phase) Sensing: Phase Failure (Loss); Sequence
from RS Components, Ltd.
Monitoring relay 17.5mm [See More]
- Voltage Sensitive Relay: Overvoltage Protection; Undervoltage
- Approvals: RoHS
- Power (Phase) Sensing: Phase Failure (Loss); Sequence
from RS Components, Ltd.
3 Phase Seq, Failure-Asymmetry 1CO 400V [See More]
- Power (Phase) Sensing: Phase Failure (Loss); Sequence
- Approvals: RoHS
- Voltage Sensing Range: 400
from RS Components, Ltd.
Voltage Monitor 1/3 phase Under/Window [See More]
- Power (Phase) Sensing: Phase Failure (Loss); Sequence
- Approvals: RoHS
- Frequency Sensing Range: 16.6
from RS Components, Ltd.
3 Phase Seq, Failure-Asymmetry 480V/277V [See More]
- Power (Phase) Sensing: Phase Failure (Loss); Sequence
- Approvals: RoHS
from RS Components, Ltd.
400V VoltageMonitor 3 phase Under/Win [See More]
- Voltage Sensitive Relay: Undervoltage
- Voltage Sensing Range: 400
- Power (Phase) Sensing: Phase Failure (Loss); Sequence
- Approvals: RoHS
from RS Components, Ltd.
115V VoltageMonitor 3 phase Under/Win [See More]
- Voltage Sensitive Relay: Undervoltage
- Voltage Sensing Range: 115
- Power (Phase) Sensing: Phase Failure (Loss); Sequence
- Approvals: RoHS
from RS Components, Ltd.
3 PH VOLTAGE CONTROL RELAY [See More]
- Voltage Sensitive Relay: Overvoltage Protection; Undervoltage
- Voltage Sensing Range: 380 to 480
- Power (Phase) Sensing: Phase Failure (Loss); Sequence
- Approvals: RoHS
from RS Components, Ltd.
3 PH UNDERVOLTAGE CONTROL RELAY [See More]
- Voltage Sensitive Relay: Undervoltage
- Voltage Sensing Range: 200 to 240
- Power (Phase) Sensing: Phase Failure (Loss); Sequence
- Approvals: RoHS
from RS Components, Ltd.
PH FAIL SEQ UNDER DPDT [See More]
- Voltage Sensitive Relay: Undervoltage
- Voltage Sensing Range: 243 to 540
- Power (Phase) Sensing: Phase Failure (Loss); Sequence
- Approvals: RoHS
from RS Components, Ltd.
PH ASYM FAIL SEQ UO VOLT DPDT [See More]
- Voltage Sensitive Relay: Overvoltage Protection; Undervoltage
- Voltage Sensing Range: 243 to 540
- Power (Phase) Sensing: Phase Failure (Loss); Sequence
- Approvals: RoHS
from RS Components, Ltd.
PHFAIL SEQ U VOLT DPDT [See More]
- Voltage Sensitive Relay: Undervoltage
- Voltage Sensing Range: 243 to 540
- Power (Phase) Sensing: Phase Failure (Loss); Sequence
- Approvals: RoHS
from RS Components, Ltd.
PH ASYM FAIL SEQ U VOLT DPDT [See More]
- Voltage Sensitive Relay: Undervoltage
- Voltage Sensing Range: 243 to 540
- Power (Phase) Sensing: Phase Failure (Loss); Sequence
- Approvals: RoHS
from RS Components, Ltd.
SINGLE OR 3 PHASES PUMP CONTROL [See More]
- Power (Phase) Sensing: Phase Failure (Loss); Sequence
- Current Sensing Range: 10
- Current Sensitive Relay: Over-Current Protection; Undercurrent
- Approvals: RoHS
from RS Components, Ltd.
PHASE LOSS AND SEQUENCE [See More]
- Power (Phase) Sensing: Phase Failure (Loss); Sequence
- Approvals: RoHS
- Voltage Sensing Range: 183 to 528
from RS Components, Ltd.
PHASE LOSS AND SEQUENCE UNBALANCE [See More]
- Voltage Sensitive Relay: Overvoltage Protection; Undervoltage
- Voltage Sensing Range: 220 to 480
- Power (Phase) Sensing: Phase Failure (Loss); Sequence
- Approvals: RoHS
from RS Components, Ltd.
PHASE LOSS AND SEQUENCE UNBALANCE [See More]
- Voltage Sensitive Relay: Overvoltage Protection; Undervoltage
- Voltage Sensing Range: 183 to 528
- Power (Phase) Sensing: Phase Failure (Loss); Sequence
- Approvals: RoHS
from RS Components, Ltd.
PHASE LOSS AND SEQUENCE UNBALANCE [See More]
- Power (Phase) Sensing: Phase Failure (Loss); Sequence
- Approvals: RoHS
- Voltage Sensing Range: 183 to 528
from RS Components, Ltd.
PHASE LOSS AND SEQUENCE UNDERVOLTAGE [See More]
- Voltage Sensitive Relay: Undervoltage
- Voltage Sensing Range: 183 to 528
- Power (Phase) Sensing: Phase Failure (Loss); Sequence
- Approvals: RoHS
from RS Components, Ltd.
PHASE LOSS AND SEQUENCE [See More]
- Power (Phase) Sensing: Phase Failure (Loss); Sequence
- Approvals: RoHS
- Voltage Sensing Range: 183 to 528
from RS Components, Ltd.
3phase multifunction monitoring relay [See More]
- Power (Phase) Sensing: Phase Failure (Loss); Sequence
- Frequency Sensing Range: 45
- Voltage Sensing Range: 102 to 552
- Approvals: RoHS
from Macromatic Industrial Controls, Inc.
The PAP Series Phase Monitor Relays provide protection against phase loss, phase reversal & undervoltage in a compact plug-in design. These devices are designed to be compatible with most Wye or Delta systems. Phase Monitor Relays protect against single phasing regardless of any regenerative... [See More]
- Voltage Sensitive Relay: Undervoltage
- Line Voltage Range: 90 to 120
- Power (Phase) Sensing: Phase Failure (Loss); Reversal
- Features: Automatic Reset; Sealed Relay; Visual Indicator
from Solcon Solutions LLC
Medium Voltage Control supply voltage:110V - 230V - 110-230V AC/DC Separate AUX19-60 VDC The MPS-3000 delivers a complete motor protection and control package. Monitoring 3-phase currents and voltage together with 10 RTD/Thermistor temperature inputs makes it an ideal solution for Medium and large... [See More]
- Voltage Sensitive Relay: Overvoltage Protection; Undervoltage
- Current Sensitive Relay: Over-Current Protection; Undercurrent
- Power (Phase) Sensing: Phase Failure (Loss); Sequence
- Supply Voltage Range: 110 to 230
from Time Mark Corporation
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... [See More]
- Voltage Sensitive Relay: Overvoltage Protection; Undervoltage
- Protective Functions: Time Delay; Synchronous Check (Paralleling)
- Power (Phase) Sensing: Phase Failure (Loss); Reversal; Unbalance
- Voltage Sensing Range: 84 to 114
from Eaton Corporation
PHASE LOSS, PHASE REVERSAL, PHASE UNBALANCE, UNDERVOLTAGE TYPE. 2 FORM C (DPDT) CONTACT CONFIGURATION. 240 VAC/30 VDC 10 AMPERE CONTACT RATING. UL, CSA APPROVAL. 360 TO 460 V CONTROL VOLTAGE. 480 V AT 50/60 HZ MONITORED VOLTAGE. D65 MODEL [See More]
- Voltage Sensitive Relay: Undervoltage
- Approvals: UL, CSA
- Power (Phase) Sensing: Phase Failure (Loss); Reversal; Unbalance
from Macromatic Industrial Controls, Inc.
The PLP Series Phase Monitor Relays provide protection against phase loss & phase reversal in a compact plug-in design. These devices are designed to be compatible with most Wye or Delta systems. Phase Monitor Relays protect against single phasing regardless of any regenerative voltages. The... [See More]
- Power (Phase) Sensing: Phase Failure (Loss); Reversal
- Features: Automatic Reset; Sealed Relay; Visual Indicator
- Line Voltage Range: 120
- Approvals: UL, RU
from Time Mark Corporation
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... [See More]
- Voltage Sensitive Relay: Overvoltage Protection; Undervoltage
- Protective Functions: Time Delay; Synchronous Check (Paralleling)
- Power (Phase) Sensing: Phase Failure (Loss); Reversal; Unbalance
- Voltage Sensing Range: 84 to 114
from Macromatic Industrial Controls, Inc.
The PMD Series Phase Monitor Relays utilize a microprocessor-based design to provide protection against phase loss, phase reversal, phase unbalance, undervoltage and overvoltage. The PMDU is a universal voltage product that works on any three-phase system voltage from 208-480V (separate 120V &... [See More]
- Voltage Sensitive Relay: Overvoltage Protection; Undervoltage
- Protective Functions: Time Delay
- Power (Phase) Sensing: Phase Failure (Loss); Reversal; Unbalance
- Line Voltage Range: 120
from Time Mark Corporation
The Model 2581 3-Phase Monitor is designed to continuously monitor 3-phase power lines for phase loss, low voltage and phase reversal. The Model 2581 Monitor will detect phase loss on a loaded motor even when regenerated voltage is present. This device consists of a solid-state voltage and... [See More]
- Voltage Sensitive Relay: Undervoltage
- Protective Functions: Synchronous Check (Paralleling)
- Power (Phase) Sensing: Phase Failure (Loss); Reversal
- Voltage Sensing Range: ? to 208
from Macromatic Industrial Controls, Inc.
The PMP Series Phase Monitor Relays utilize a microprocessor-based design to provide protection against phase loss, phase reversal, phase unbalance, undervoltage and overvoltage. The PMPU is a universal voltage product that works on any three-phase system voltage from 208-480V (a separate 120V... [See More]
- Voltage Sensitive Relay: Overvoltage Protection; Undervoltage
- Protective Functions: Time Delay
- Power (Phase) Sensing: Phase Failure (Loss); Reversal; Unbalance
- Line Voltage Range: 120
from Time Mark Corporation
The Model 246 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 relay. A neutral is not required, allowing the Model 246 to be used with... [See More]
- Voltage Sensitive Relay: Overvoltage Protection; Undervoltage
- Protective Functions: Synchronous Check (Paralleling)
- Power (Phase) Sensing: Phase Failure (Loss); Reversal
- Voltage Sensing Range: 85 to 140
from Time Mark Corporation
The Model 259 3-Phase Monitor is designed to protect individual 3-phase equipment and motors, or in conjunction with shunt trip breakers. When correct voltage and phase rotation is applied, an internal DPDT relay energizes. A fault condition (phase loss, phase reversal, or low voltage) drops out the... [See More]
- Voltage Sensitive Relay: Undervoltage
- Protective Functions: Time Delay; Synchronous Check (Paralleling)
- Power (Phase) Sensing: Phase Failure (Loss); Reversal
- Voltage Sensing Range: 85 to 125
from Time Mark Corporation
The Model 2594 3-Phase Monitor is designed for use with applications which require high control voltage (up to 600VAC). The Model 2594 protects 3-phase equipment and motors from phase loss, phase reversal and low voltage. When the correct voltage and phase rotation is applied, an internal DPDT relay... [See More]
- Voltage Sensitive Relay: Undervoltage
- Protective Functions: Synchronous Check (Paralleling)
- Power (Phase) Sensing: Phase Failure (Loss); Reversal
- Voltage Sensing Range: 85 to 125
from Time Mark Corporation
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... [See More]
- Voltage Sensitive Relay: Undervoltage
- Protective Functions: Synchronous Check (Paralleling)
- Power (Phase) Sensing: Phase Failure (Loss); Reversal
- Voltage Sensing Range: 85 to 120
from Time Mark Corporation
The Model 264 3-Phase Monitor continuously monitors 3-phase Wye or Delta systems for abnormal conditions. The solid-state electronic sensing circuit drives two separate single pole relays, one normally open and the other normally closed. An adjustable trip delay reduces or eliminates nuisance... [See More]
- Voltage Sensitive Relay: Undervoltage
- Protective Functions: Synchronous Check (Paralleling)
- Power (Phase) Sensing: Phase Failure (Loss); Reversal
- Voltage Sensing Range: 85 to 125
from Time Mark Corporation
The Model 2642 protects electrical equipment by sensing phase loss, low voltage and reverse phase conditions. The monitor uses a combination of voltage and phase-angle sensing, and will detect a phase loss even when regenerated voltages are present. The Model 2642 is fail safe; the output contacts... [See More]
- Voltage Sensitive Relay: Undervoltage
- Protective Functions: Synchronous Check (Paralleling)
- Power (Phase) Sensing: Phase Failure (Loss); Reversal
- Voltage Sensing Range: 85 to 125
from Time Mark Corporation
The Model 2644 3-Phase Monitor continuously monitors 3-phase Wye or Delta systems for abnormal conditions. The solid-state electronic sensing circuitry drives an internal DPDT relay, allowing the Model 2644 to operate two motor control circuits, or a control circuit and an alarm circuit. An... [See More]
- Voltage Sensitive Relay: Undervoltage
- Protective Functions: Synchronous Check (Paralleling)
- Power (Phase) Sensing: Phase Failure (Loss); Reversal
- Voltage Sensing Range: 85 to 120
from Time Mark Corporation
The Model 265 3-Phase Monitor continuously monitors 3-phase Wye or Delta systems for phase loss, low voltage and phase reversal. When properly adjusted, the Model 265 Monitor will detect phase loss on a loaded motor even when regenerated voltage is present. The solid-state sensing circuit drives an... [See More]
- Voltage Sensitive Relay: Undervoltage
- Protective Functions: Synchronous Check (Paralleling)
- Power (Phase) Sensing: Phase Failure (Loss); Reversal
- Voltage Sensing Range: 85 to 120
from Time Mark Corporation
The Model 2652 3-Phase Monitor is designed to protect motors, pumps, HVAC equipment, air compressors, etc. , by sensing phase loss, low voltage or phase reversal. With correct power applied, the DPDT output contacts transfer, and drop out when a fault condition or loss of power occurs. An adjustable... [See More]
- Voltage Sensitive Relay: Undervoltage
- Protective Functions: Synchronous Check (Paralleling)
- Power (Phase) Sensing: Phase Failure (Loss); Reversal
- Voltage Sensing Range: 85 to 125
from Time Mark Corporation
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... [See More]
- Voltage Sensitive Relay: Undervoltage
- Protective Functions: Time Delay (optional feature); Synchronous Check (Paralleling)
- Power (Phase) Sensing: Phase Failure (Loss); Reversal
- Voltage Sensing Range: 85 to 125
from Time Mark Corporation
The Model 252 3-Phase Monitor continuously monitors 3-phase power lines for abnormal conditions. When properly adjusted, the Model 252 will detect phase loss on a loaded motor even when regenerated voltage is present. The device consists of a solid-state voltage and phase-angle sensing circuit,... [See More]
- Voltage Sensitive Relay: Undervoltage
- Protective Functions: Synchronous Check (Paralleling)
- Power (Phase) Sensing: Phase Failure (Loss); Reversal
- Voltage Sensing Range: 85 to 120
from Time Mark Corporation
The Model 2522 continuously monitors 3-phase power lines for abnormal conditions. When properly adjusted, the Model 2522 will detect phase loss on a loaded motor even when regenerated voltage is present. This unit consists of a solid-state voltage and phase-angle sensing circuit, driving an... [See More]
- Voltage Sensitive Relay: Undervoltage
- Protective Functions: Synchronous Check (Paralleling)
- Power (Phase) Sensing: Phase Failure (Loss); Reversal
- Voltage Sensing Range: 85 to 120
from Time Mark Corporation
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... [See More]
- Voltage Sensitive Relay: Undervoltage
- Protective Functions: Synchronous Check (Paralleling)
- Power (Phase) Sensing: Phase Failure (Loss); Reversal
- Voltage Sensing Range: 85 to 120
from Time Mark Corporation
The Model 258 continuously monitors 3-phase power lines for abnormal conditions. When properly adjusted, the Model 258 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... [See More]
- Voltage Sensitive Relay: Undervoltage
- Protective Functions: Synchronous Check (Paralleling)
- Power (Phase) Sensing: Phase Failure (Loss); Reversal
- Voltage Sensing Range: 85 to 120
from Time Mark Corporation
The Model 2638 3-Phase Monitor combines a 3-phase monitor with a line voltage and phase sequence indicator. Like other Time Mark Monitors, the Model 2638 senses phase loss, phase reversal and low voltage. When power and phasing are correct, the internal relay energizes. LED indicators will show that... [See More]
- Voltage Sensitive Relay: Undervoltage
- Protective Functions: Synchronous Check (Paralleling)
- Power (Phase) Sensing: Phase Failure (Loss); Reversal
- Voltage Sensing Range: 160 to 240
from Time Mark Corporation
The Model 18 continuously monitors 3-phase power lines for abnormal conditions. When properly adjusted, the Model 18 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,... [See More]
- Voltage Sensitive Relay: Undervoltage
- Protective Functions: Time Delay
- Power (Phase) Sensing: Phase Failure (Loss); Reversal
- Voltage Sensing Range: 85 to 120
from Time Mark Corporation
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,... [See More]
- Voltage Sensitive Relay: Undervoltage
- Protective Functions: Time Delay
- Power (Phase) Sensing: Phase Failure (Loss); Reversal
- Voltage Sensing Range: 85 to 120
from Time Mark Corporation
The Model 20 is 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. The Model 20 includes adjustable... [See More]
- Voltage Sensitive Relay: Overvoltage Protection; Undervoltage
- Protective Functions: Time Delay
- Power (Phase) Sensing: Phase Failure (Loss); Reversal
- Voltage Sensing Range: 190 to 480
from Time Mark Corporation
The Model 20 is 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. The Model 20 includes adjustable... [See More]
- Voltage Sensitive Relay: Overvoltage Protection; Undervoltage
- Protective Functions: Time Delay
- Power (Phase) Sensing: Phase Failure (Loss); Reversal
- Voltage Sensing Range: 475 to 600
from Time Mark Corporation
The Model 21 is 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. The Model 21 includes adjustable... [See More]
- Voltage Sensitive Relay: Overvoltage Protection; Undervoltage
- Protective Functions: Time Delay
- Power (Phase) Sensing: Phase Failure (Loss); Reversal
- Voltage Sensing Range: 190 to 480
from Time Mark Corporation
The Model 269 Over and Under 3-Phase Monitor continuously monitors 3-phase lines for high voltage, low voltage, phase loss or phase reversal. This device features a solid-state voltage and phase-angle sensing circuit, which drives a SPDT output relay. The Model 269 is independent of the system load,... [See More]
- Voltage Sensitive Relay: Overvoltage Protection; Undervoltage
- Protective Functions: Synchronous Check (Paralleling)
- Power (Phase) Sensing: Phase Failure (Loss); Reversal
- Voltage Sensing Range: 80 to 145
from Time Mark Corporation
Model 25 True RMS 3-Phase Monitor has a display that shows the voltage with an accuracy of +/- 0.5%. The display is updated every second and re-initialized every 30 seconds. Model 25 has a rotary encoder with switch on the unit. By pressing the encoder switch for more than 5 seconds, the unit will... [See More]
- Voltage Sensitive Relay: Overvoltage Protection; Undervoltage
- Protective Functions: Time Delay
- Power (Phase) Sensing: Phase Failure (Loss); Reversal; Unbalance
- Voltage Sensing Range: 80 to 550