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. These...
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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 ...

distance protection relay
distance protection relay
SIPROTEC 7SA82

... 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: Classic, reactance ...

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SIEMENS Energy automation and smart grid
power protection relay
power protection relay
PCS-9641

... temperature protection (RTD)

  • Under-frequency, overfrequency and rate-of-change of frequency protection (81U/O/R)
  • Reverse power protection (32R)
  • Under power
  • ...

    power protection relay
    power 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 within utility ...

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    ABB Oy Distribution Automation
    thermal protection relay
    thermal protection relay
    JRS1

    Tripping current: 0.16 A - 80 A
    Trigger voltage: 380 V

    ... over-load relay is suitable for the circuit of AC50~60Hz, rated operating voltage Ue: 380V, rated current 0.1~80A, as the use of over-load and break phase protection for AC motor. Thermal ...

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    PEOPLE ELE. APPLIANCE GROUP CO., LTD.
    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, motor ...

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    Littelfuse
    over-current protection relay
    over-current protection relay
    SEL-501

    ... The SEL-501 Dual Universal Overcurrent Relay is two complete sets of protection; both can be configured as one of five basic relays. ...

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    Schweitzer Engineering Laboratories
    current protection relay
    current protection relay
    ELR

    Tripping current: 0.03 A - 10 A

    ... Earth leakage relay type B, 2 operating thresholds, modular with display, external toroid, auxiliary supply 230VAC ...

    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 on both split phase and capacitor ...

    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 ...

    overload relay
    overload 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 need dependable ...

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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 clearly displays ...

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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 with greater thermal ...

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    FANOX ELECTRONIC
    earth-leakage protection relay
    earth-leakage protection relay
    DER4B/2D

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

    ... Din modules Dossena presents the DER4B range, the new generation of type B differential toroid relays. DER4B is recommended for electrical protection in the tertiary sector, where devices that generate ...

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    DOSSENA
    earth-leakage protection relay
    earth-leakage protection relay
    DER4B/2I

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

    ... Recessed 96x96mm Dossena presents the DER3B range, the new generation of type B differential toroid relays. DER3B is recommended for electrical protection in the tertiary sector, where devices that ...

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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
    overload relay
    overload relay
    GSR1 series

    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.
    earth-leakage protection relay
    earth-leakage 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 robust design enables ...

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    Iskra d.d.
    arc flash protection relay
    arc flash protection relay
    VAMP 230

    ... VAMP 230 Key Features: Feeder and motor manager suitable for various current and voltage applications 5 Current & 3 Voltage inputs allows use of directional o/c and various voltage-based protection ...

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    Vamp
    temperature protection relay
    temperature protection relay
    PMM/T series

    Trigger voltage: 24 V - 240 V

    ... Thermistor protector trip relay monitors the temperature of a motor using the PTC sensor (positive temperature coefficient resistor) or thermostat (TK) switch built in to the motor ...

    over-current protection relay
    over-current protection relay
    MPR-3M series

    Tripping current: 10, 80, 40 A
    Trigger voltage: 415, 230 V

    ... Under Current Electrical Connection : 3Ø-3W Display : 3 LED Indication Trip Setting : Phase Unbalance: 50% of Motor Current (Fixed), T(sec) Setting: 2 , 4, 6 , 8 ,10 Sec Trip Time ...

    motor protection relay
    motor protection relay
    RX series

    Tripping current: 1 A - 2,000 A
    Trigger voltage: 0 V - 600 V

    ... RX Motor Protection Relay Take your motor protection to a new level. The RX Series provides more than just solid state overload or power protection ...

    over-current protection relay
    over-current protection relay
    2-6500 series

    Trigger voltage: 28, 250 V

    ... pole motor protection controls with automatic reset actuation, small physical size, reliable snap-action mechanism. Caution: In specifying these 2 products, care should be taken to ensure that automatic motor ...

    voltage protection relay
    voltage protection relay
    GEMStart 5®

    Trigger voltage: 24 V

    ... GemStart5® is a motor protection relay perfectly dedicated to protect, control and monitor electrical motors and their applications. Discover more about its functionalities. Operation: - ...

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    Comeca Group
    power factor protection relay
    power factor protection relay
    G4CM690V16ATL20

    Tripping current: max 16.0 A

    Power factor monitoring (cos phi); Monitoring of inductive and capacitive consumers; Multifunction; up to 690V / 16A; Recognition of disconnected consumers as „good“ or „fault“ state; Reset-key; Fault latch; 2 CO; timing for start-up supression and tripping ...

    earth-leakage protection relay
    earth-leakage protection relay
    PR 260

    ... The PR 260 electric motor protection relay, known as the motor management relay, is designed for motor protection and control, which ...

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    Chongqing Blue Jay Technology Co. Ltd
    phase loss protection relay
    phase loss protection relay
    RAM1S

    Trigger voltage: 380 V

    ... RAM1S - MTR PROTECTION (PHASE FAILURE ) RELAY 3 X 380 V AC ...

    phase loss protection relay
    phase loss protection relay
    FAZ series

    ... These are the devices used to prevent the motors from being damaged by overheating due to the lack of phase or voltage imbalance and to prevent the problems that may arise from the phase sequence error. There are different models working ...

    over-voltage protection relay
    over-voltage protection relay
    DG 3802

    Tripping current: 0.2, 6 A
    Trigger voltage: 250 V

    ... Ther­mistor Motor Protec­tion Relay DG 3802 protects motors und machines against over-tem­pera­ture caused by heavy starting duties, braking, under-voltage, over-voltage and high swit­ching ...

    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 for restricted ...

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