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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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 series 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
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 ...

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
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 ...

overload relay
overload relay
MCOR-2-20

Tripping current: 14 A - 35 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 ...

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IMO Precision Controls Limited
overload relay
overload relay
MCOR-3-28

Tripping current: 20 A - 48 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 ...

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IMO Precision Controls Limited
overload relay
overload relay
MCOR-1-0.18

Tripping current: 0.12 A - 0.18 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 ...

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IMO Precision Controls Limited
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
earth-leakage protection relay
earth-leakage 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
thermal protection relay
thermal protection relay
TSR19

Tripping current: 6 A
Trigger voltage: 250, 25 V

- Changeover contacts - Contact material AgNi - Measuring range 100-1800 Ohm Treshold exceeded (over) Threshold fixed

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. ...

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 ...

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
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
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. •Incorporated protections: ...

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 series

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
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 ...

thermal protection relay
thermal protection relay
TH-T series

Tripping current: 0.16 A - 480 A

Protects motors against overload and locked rotor, securing safe operation. Standard model complies with Japanese and many international standards.

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MITSUBISHI ELECTRIC AUTOMATION
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 ...

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
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 ...

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 ...

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.
current protection relay
current 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
motor protection relay
motor protection relay
PAS2960D

PAS2960D series digital motor protection, measurement and control device is applicable to the protection of large- and medium-sized asynchronous motors of 10kV and lower ...

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
thermal protection relay
thermal protection relay

Tripping current: 5 A - 30 A

... Great accuracy Full reliability Phase unbalance protection Direct mount to IEC contactors Panel mount adapter for NEMA contactors Interchangeable with thermal overload relay ...

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