Phase control relays

Phase monitoring relays

Phase sequence and phase loss sensors (relays) are designed to protect electric motors powered from a three-phase network. The sequence and phase failure relay detects events that may result in damage to the motor, such as a voltage failure in one or more phases or the occurrence of voltage imbalance between phases. Phase sequence relays also detect incorrect phase sequence of the power supply, thus preventing the motor from rotating in the wrong direction.

There are 39 products.

Showing 1-12 of 39 item(s)

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Power supply voltage

Power supply voltage

Assembly

Assembly

The executive element

The executive element

Contact configuration

Contact configuration

Cooperation with power generators

Cooperation with power generators

Contactor contact monitoring

Contactor contact monitoring

Phase sequence control

Phase sequence control

TrueRMS

TrueRMS

Active filters

Three-phase asymmetry and sequence monitors CKF-319 True RMS Three-phase asymmetry and sequence monitors CKF-319 True RMS
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Three-phase asymmetry and sequence monitors CKF-319 True RMS

CKF-320-TRMS, 5902431674391

To protect electric motors supplied from a three-phase network in the event of a power failure in at least one phase or voltage unbalance between phases that threatens to destroy the motor and to protect the direction of rotation of the motor in the event of a phase change in front of the sensor.

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Three-phase monitor CZF Three-phase monitor CZF
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Phase control relays CZF

CZF, 5908312593010
With the fixed actuation threshold voltage asymmetry.
Three phase monitors serve to protect the three-phase electric motors supplied from three-phase mains, against phase collapse in at least one phase or against phase-to-phase voltage asymmetry, threatening to damage the motor.
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Three-phase monitor CZF Three-phase monitor CZF
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Phase control relays CZF TRMS

CZF-TRMS, 5902431673653
With the fixed actuation threshold voltage asymmetry.
Three phase monitors serve to protect the three-phase electric motors supplied from three-phase mains, against phase collapse in at least one phase or against phase-to-phase voltage asymmetry, threatening to damage the motor.
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Phase control relays CZF-B Phase control relays CZF-B
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Phase control relays CZF-B

CZF-B, 5908312593041
With the fixed actuation threshold voltage asymmetry.
Three phase monitors serve to protect the three-phase electric motors supplied from three-phase mains, against phase collapse in at least one phase or against phase-to-phase voltage asymmetry, threatening to damage the motor.
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Phase control relays CZF-B Phase control relays CZF-B
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Phase control relays CZF-B TRMS

CZF-B-TRMS, 5902431673769
With the fixed actuation threshold voltage asymmetry.
Three phase monitors serve to protect the three-phase electric motors supplied from three-phase mains, against phase collapse in at least one phase or against phase-to-phase voltage asymmetry, threatening to damage the motor.
More
Phase control relays CZF-BS Phase control relays CZF-BS
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Phase control relays CZF-BS

CZF-BS, 5908312593102
With the fixed actuation threshold voltage asymmetry.
Three phase monitors serve to protect the three-phase electric motors supplied from three-phase mains, against phase collapse in at least one phase or against phase-to-phase voltage asymmetry, threatening to damage the motor.
More
Phase control relays CZF-BS Phase control relays CZF-BS
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Phase control relays CZF-BS TRMS

CZF-BS-TRMS, 5902431673783
With the fixed actuation threshold voltage asymmetry.
Three phase monitors serve to protect the three-phase electric motors supplied from three-phase mains, against phase collapse in at least one phase or against phase-to-phase voltage asymmetry, threatening to damage the motor.
More
Phase control relays CZF-310 Phase control relays CZF-310
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Phase control relays CZF-310

CZF-310, 5908312593126
With fixed actuation threshold voltage asymmetry.
Three phase monitors serve to protect the three-phase electric motors supplied from three-phase mains, against phase collapse in at least one phase or against phase-to-phase voltage asymmetry, threatening to damage the motor.
More
Phase control relays CZF-310 Phase control relays CZF-310
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Phase control relays CZF-310 TRMS

CZF-310-TRMS, 5902431673691
With fixed actuation threshold voltage asymmetry.
Three phase monitors serve to protect the three-phase electric motors supplied from three-phase mains, against phase collapse in at least one phase or against phase-to-phase voltage asymmetry, threatening to damage the motor.
More
Phase control relays CZF-BR Phase control relays CZF-BR
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Phase control relays CZF-BR

CZF-BR, 5908312593119
With adjustable actuation threshold at voltage asymetry.
Three phase monitors serve to protect the three-phase electric motors supplied from three-phase mains, against phase collapse in at least one phase or against phase-to-phase voltage asymmetry, threatening to damage the motor.
More
Phase control relays CZF-311 Phase control relays CZF-311
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Phase control relays CZF-311

CZF-311, 5908312593133
With adjustable actuation threshold at voltage asymmetry.
Three phase monitors serve to protect the three-phase electric motors supplied from three-phase mains, against phase collapse in at least one phase or against phase-to-phase voltage asymmetry, threatening to damage the motor.
More
Phase control relays CZF-311 Phase control relays CZF-311
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Phase control relays CZF-311 TRMS

CZF-311-TRMS, 5902431673707
With adjustable actuation threshold at voltage asymmetry.
Three phase monitors serve to protect the three-phase electric motors supplied from three-phase mains, against phase collapse in at least one phase or against phase-to-phase voltage asymmetry, threatening to damage the motor.
More
Phase control relays CZF-B Phase control relays CZF-B

Phase control relays CZF-B

CZF-B, 5908312593041
With the fixed actuation threshold voltage asymmetry.
Three phase monitors serve to protect the three-phase electric motors supplied from three-phase mains, against phase collapse in at least one phase or against phase-to-phase voltage asymmetry, threatening to damage the motor.
More
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