Electric motor protection relays

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Electric motor protection relays | Choosing the Right Protection Relay
Protection relays have different functions. They are often made up of several modules, each of which performs a specific function. In this guide, we will distinguish three types of functions: protection against abnormal variations in the main supply, protection against leakage currents, and protection against overloads. Protection against abnormal grid variations Abnormal voltage, current, and frequency variations can lead to problematic phenomena....
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thermal protection relay
thermal protection relay
TH-N Serie

Motor protection relays that protect your motor against burnout. Can be used for protection against motor burnout during overload or ...

voltage protection relay
voltage protection relay
MEprotect

Entry-level, yet powerful protection for motors and other electrical assets, finding application in power control centres and switchgear, motor control centres, etc. Complete ...

thermal protection relay
thermal protection relay
ZEB series

Tripping current: 250 A

Motor protection is one of the central tasks of the electrical equipment of any machine. The electronically configurable ZEB electronic motor protection ...

arc flash protection relay
arc flash protection relay
AF0500 series

Trigger voltage: 110, 250, 100, 240 V

... microprocessor-based arc-flash protection relay that limits arc-fault damage by detecting the light from an arc flash and rapidly tripping the feeder breaker. The unit is well suited for switchgear, transformer, ...

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Littelfuse
overload relay
overload relay
MP8000 series

Trigger voltage: 90 V - 690 V

The MP8000 is an advanced motor protection electronic overload relay that is fully programmable via Bluetooth* using an iPhone* or Android* smartphone or tablet with ...

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Littelfuse
voltage protection relay
voltage protection relay
MPU-32 series

The MPU-32 Motor Protection Unit is used to provide current and temperature-based protection, metering, and data logging for three-phase low-voltage medium-horsepower ...

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Littelfuse
current protection relay
current protection relay
3CR series

Tripping current: 15 A

... series current type motor starting relay is designed for single-phase AC applications with motor start winding currents up to 15 Amps. It is applicable ...

current protection relay
current protection relay
4CR series

Tripping current: 25 A

KLIXON® 4CR current type motor starting relay is a compact, high capacity relay, designed for universal application to split phase and capacitor start, single-phase motors ...

phase loss protection relay
phase loss protection relay
C Series

Trigger voltage: 230, 24 V

For motors of low and medium power in several applications such as compressors, ventilators, surface mounted pumps, conveyor belts, machine tools, and in general to protect motors which ...

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FANOX ELECTRONIC
overload relay
overload relay
GL Series

Tripping current: 4 A - 91 A
Trigger voltage: 230, 24, 115 V

The integral motor protection provides protection for L.V. motors up to 1000 Vac. The current adjustment is from 1 to over 630. The relay ...

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FANOX ELECTRONIC
overload relay
overload relay
G/BG EEx

Trigger voltage: 230, 115, 24 V

Motor safety in volatile or harmful spaces is guaranteed by 3 dimensional ATEX 94/9/EC used for 3-stage motors offering up to 1000 Vac Currents between 1,5 and 630 A ...

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FANOX ELECTRONIC
overload relay
overload relay
MCOR-1 series

Tripping current: 0.12 A - 55 A

... and overall lifespan of a motor, making it important to prevent the motor from overheating, or thermal overload. IMO Thermal Overload Relays offer electromechanical protection ...

arc flash protection relay
arc flash protection relay
AFR-3S

... voltage, and electric power, and quickly disconnect the power supply before an electrical fire occurs, thereby reducing the risk of fire. AFR-3S Arc flash relay is ...

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Chongqing Blue Jay Technology Co. Ltd
insulation protection relay
insulation protection relay
DCG-UBCS1

Tripping current: 0.03 A
Trigger voltage: 400 V

... positive and negative poles -Ground insulation resistance -Voltage reverse polarity alarm Power supply :10-30VDC, Power 3w DC voltage range :0V~1000V DC voltagemeasurement ...

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Chongqing Blue Jay Technology Co. Ltd
current protection relay
current protection relay
GYID Series

... and the chassis (earth) of the power battery pack (pure electric or hybrid) power supply system. The measurement technology used in this product can monitor the insulation faults on the ...

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Chongqing Blue Jay Technology Co. Ltd
earth-leakage protection relay
earth-leakage protection relay
DER4B/2D

Tripping current: 0.03 A - 30 A
Trigger voltage: 48 V - 400 V

... constantly monitors the differential current in TRMS with the novelty of displaying the differential current divided into AC and DC. Technical features: - Type B - Compliance with ...

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DOSSENA
current protection relay
current protection relay
DER4B/2I

Tripping current: 0.03 A - 30 A
Trigger voltage: 48 V - 400 V

... constantly monitors the differential current in TRMS with the novelty of displaying the differential current divided into AC and DC. Technical features: - Type B - Compliance with ...

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DOSSENA
earth-leakage protection relay
earth-leakage protection relay
DER4/0D

Tripping current: 0.03 A - 30 A
Trigger voltage: 48 V - 400 V

The residual current relays of the DER4 Dossena range can be used on LV networks in alternating current of the TT and TN type. They make it possible to achieve adequate selectivity and residual current ...

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DOSSENA
temperature protection relay
temperature protection relay
TCM series

Tripping current: 6 A

... indicators for power supply and output relay The TCM is used with PTC sensors (DIN 44081) to provide permanent over temperature protection for motors and other equipment Up ...

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HIQUEL
temperature protection relay
temperature protection relay
ICM series

Tripping current: 6 A
Trigger voltage: 230 V

• thermistor motor protection relay • 5 selectable functions • up to 6 PTC-sensors in series switchable test function (without sensor connected) • probe short and/or open circuit detection ...

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HIQUEL
overload relay
overload relay
LR2-D

This series of thermal overload relays can be used in the circuit of 50Hz or 60Hz, rated insulation voltage 660V, rated current 0.1-93A for protecting the phase brick when the electric ...

earth-leakage protection relay
earth-leakage protection relay
ELR-3B

Trigger voltage: 230 V

ELR-3B AC and/or DC leakage installations. Alarm or prealarm relay. Instantaneous display. In recent years the use of loads with power electronics has become widespread. ...

thermal protection relay
thermal protection relay
RHU & RHN Series

Tripping current: 0.1 A - 38 A

Reduce power consumption for energy saving and reduction of carbon emissions Comply with IEC, and China GB standard Certificate : CSA, UL Comply with RoHS, CE ‧Phase failure protection‧Trip ...

thermal protection relay
thermal protection relay
EOL Series

Tripping current: 0.1 A - 150 A

... certificate : CE, UL, CSA, and TUV ‧Wide adjustable current range (5:1) ‧ Phase failure, over current, inrush current, phase unbalance protection ‧ Quick response protection ...

phase protection relay
phase protection relay
MS2V73

High speed differential protection for various items of power system plant including generators, busbars, motors & the individual windings of power transformers and ...

temperature protection relay
temperature protection relay

The unit is manufactured by GIC, and is a thermistor relay that is resistant against phase sequence, loss, and asymmetry faults. The device is also resistant to overheating in applications with heavy-duty load, peak switching ...

power protection relay
power protection relay
MPR24, MPR230 series

... SERIES MOTOR PROTECTION RELAY - Compact size - 1 module - 17,5mm - 24VAC/DC or 90-264VAC Power supply - DIN rail mounting - Protection relay ...

phase loss protection relay
phase loss protection relay

... failure of the power supply structure to prevent three-phase motors from overheating and damage. Motors are equipped with Thermic-magnetic relay, a vital component ...

phase unbalance protection relay
phase unbalance protection relay
FR-02

The FR-02 is a phase sequence relay with 1 C/O output contact. It is designed to monitor the L1, L2 and L3 phase sequence. Ideal applications include pumping systems, elevators, air compressors, etc.

over-voltage protection relay
over-voltage protection relay
RMV 142D

Trigger voltage: 80 V - 120 V

These Uni-line protective voltage relays are applicable for the security of generators, engines and transformers against adverse framework voltage conditions. These are adaptable units ...

distance protection relay
distance protection relay
SIPROTEC 7SA series

... configured and combined as required. •Minimum tripping time: 19 ms •6 independent measuring loops (6-system distance protection) •Several distance-protection functions can be selected: ...

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Siemens Energy automation and smart grid
level protection relay
level protection relay
REB611

... dedicated busbar protection relay designed for phase-segregated short-circuit protection, control, and supervision of single busbars. REB611 is used in high-impedance-based applications ...

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ABB Oy Distribution Automation
electric motor protection relay
electric motor protection relay
RW_E series

Tripping current: 0.4 A - 420 A
Trigger voltage: 1,000, 690 V

... mounting on the contactors or on an individual base, the RW_E electronic overload relays provide protection for electric motors up to 840 A. Main characteristics •Incorporated ...

overload relay
overload relay
GSR1-09

Tripping current: 0.1 A - 0.16 A
Trigger voltage: 690 V

GSR1 series thermal overload relay is used in AC 50Hz (or 60Hz); rated voltage is up to 690V, for protecting AC motor against overload or phase-breaking.

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Tianshui 213 Electrical Apparatus Group CO.,LTD.
electric motor protection relay
electric motor protection relay
C440

Tripping current: 0.3 A - 1,500 A
Trigger voltage: 690 V

Increased flexibility, enhanced protection The C440/XTOE electronic overload relay delivers enhanced motor protection and communications capabilities in a single compact ...

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Eaton Count Control Products
power protection relay
power protection relay
MCAG

The MCAG relays is designed to provide high-speed protection to power system plants such as generators, reactors, busbars, motors and the individual windings of power ...

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Alstom Grid
temperature protection relay
temperature protection relay
FPC 200

Tripping current: 0.3 A - 30 A

FPC 200 is a family of current or voltage digital protection relays with easy to use interface meant for variety of solutions in industry and power distribution. Its ...

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Iskra d.d.
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