Three-phase protection relays

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Three-phase 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 locked rotor. Offers a wide range of functions, including ...

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 relays of the Eaton Moeller series ...

electric motor protection relay
electric motor protection relay
RW_E series

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

... individual base, the RW_E electronic overload relays provide protection for electric motors up to 840 A. Main characteristics •Incorporated protections: overload, phase ...

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 the Littelfuse App. It is easy to ...

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 ...

voltage protection relay
voltage protection relay
777 ACCUPOWER

The 777-AccuPower is a fully-programmable 3-phase motor and pump protection relay. It allows motor hp rating, full load amps, efficiency and power factor to be entered and will accurately ...

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.

differential protection relay
differential protection relay
SIPROTEC 7UT8 series

... transformer differential protection have been designed specifically for the protection of two and multi-winding (up to 5 sides). transformers. They are the main protection for the transformer ...

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Siemens Energy automation and smart grid
earth-leakage protection relay
earth-leakage protection relay
RG1M series

... Tripped relay. Power LED flashing and leakage LED ON. Detection of a transformer continuity fault Applications The RG1M relays combined with the WG / WGC transformer provides complete differential ...

earth-leakage protection relay
earth-leakage protection relay
RGE series

... Permanently: 100 % Applications The relays of the RGE series and the transformer of the WG / WGC series enable a full earth leakage protection for both single and three-phase ...

thermal protection relay
thermal protection relay
T119

T-119 protective relay for monitoring the windings of your electrical transformer Temperature relay with T-119 The T119 is a unit developed to monitor the temperature of MV cast ...

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 memory optical ...

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FANOX ELECTRONIC
overload relay
overload relay
GEN 10

Tripping current: 4 A - 10.3 A
Trigger voltage: 24 V

Fanox presents GEN generator protection relay. It has been designed for protection of low voltage generators up to 1000 Vac and up to 2000 A or higher currents. It is equipped with thermal ...

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FANOX ELECTRONIC
overload relay
overload relay
GL 200

Tripping current: 60 A - 200 A
Trigger voltage: 24, 115, 230 V

FANOX integral motor protection relays - gl relay is suitable for 3-phase motors between 60 to 200 A and above. Cable feed is through relay. Its thermal ...

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FANOX ELECTRONIC
grid and system protection relay
grid and system protection relay
NA003-M64

Trigger voltage: 24, 110 V

Grid protection monitoring relay RE series; Frequency and voltage monitoring; Grid and system protection; Functionally Safe; Measuring voltage 3 x 400/230V AC; Supply voltage 24V DC, ...

grid and system protection relay
grid and system protection relay
NA003.COM-64

Trigger voltage: 24 V - 110 V

... system protection monitoring relay RE series; Frequency and voltage monitoring; Functional safety; Measuring voltage 3 x 400/230V AC; Supply voltage 24V DC, 110-240V AC; 3 CO contacts; Width 107 mm; Installation ...

arc flash protection relay
arc flash protection relay
AFR-M

Tripping current: 5 A
Trigger voltage: 220 V

AFR arc flash protective relay is a costeffective solution that reduces arc-fault damage by detecting the light from an arc flash and rapidly tripping in low-voltage (LV) and medium-voltage (MV) electrical ...

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Chongqing Blue Jay Technology Co. Ltd
arc flash protection relay
arc flash protection relay
AFR-S

Tripping current: 5 A
Trigger voltage: 220 V

AFR arc flash protective relay is a costeffective solution that reduces arc-fault damage by detecting the light from an arc flash and rapidly tripping in low-voltage (LV) and medium-voltage (MV) electrical ...

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Chongqing Blue Jay Technology Co. Ltd
over-voltage protection relay
over-voltage protection relay
PR-240

Tripping current: 5 A
Trigger voltage: 250 V

... range of medium-voltage, three-phase induction and synchronous motors protect relay. · Panel mounting HMI unit and Din-rail mounting control unit. · Suit for Motor under 0.66KV and ...

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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

... 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
current protection relay
current 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 protection ...

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DOSSENA
phase unbalance protection relay
phase unbalance protection relay
MS2P49

... sensitive earth fault protection, the MS2P49 relay using solid state techniques, can be applied to detect earth currents down to 0.5% of the CT nominal current. The MS2P49 relay is a ...

voltage protection relay
voltage protection relay
MS2V75

Prewired three phase metrosil & resistor combination into protection panels employing high impedance differential schemes. The MS2V75 Module provides a compact, simple & cost ...

voltage protection relay
voltage protection relay
MS2V76 series

The MS2V76 series relay is a single phase protection class AC voltage relay. It may be configured for under or over voltage operation & includes a filter for rejection ...

over-voltage protection relay
over-voltage protection relay
SM 500

... Controls, is an under voltage and overvoltage protection relay that functions as a protection against phase loss and phase reversal. This device is capable ...

phase unbalance protection relay
phase unbalance protection relay
SFE2/4 series

SFE2/4 SERIES PHASE SEQUENCE RELAY - Compact Size - 1 Module ( 17,5mm) - Phase sequence / Rotation control - Universal three phase supply 3x200-450VAC - ...

phase sequence protection relay
phase sequence protection relay
SFR series

SFR SERIES PHASE SEQUENCE AND PHASE FAILURE RELAY - Compact Size - 1 Module ( 17,5mm) - Phase sequence and phase loss - Phase loss ...

phase sequence protection relay
phase sequence protection relay
RZ1FK116

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EMAS
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 that is installed ...

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, ...

current protection relay
current protection relay
MDR-2

... of external meters). Available options include a block (generator + step-up transformer) protection option and a short-circuit and overcurrent protection option. DEIF's utility ...

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DEIF
over-voltage protection relay
over-voltage protection relay
RMV-112D

Trigger voltage: 80 V - 120 V

... ideal generator protection, engine and transformer security against antagonistic framework voltage conditions. The adaptable units offer various movable parameters. The protective Voltage ...

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DEIF
over-voltage protection relay
over-voltage protection relay
RMV-122D

Trigger voltage: 80 V - 120 V

The Deiv RMV-122D is an under-voltage and overvoltage relay of (U) that can protect generators, motors and transformers from adverse system voltage conditions. In addition, this device is suitable for operations in marine ...

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DEIF
thermal protection relay
thermal protection relay
RHU & RHN Series

Tripping current: 0.1 A - 38 A

... of carbon emissions Comply with IEC, and China GB standard Certificate : CSA, UL Comply with RoHS, CE ‧Phase failure protection‧Trip class : 10A

thermal protection relay
thermal protection relay
EOL Series

Tripping current: 0.1 A - 150 A

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

over-voltage protection relay
over-voltage protection relay
VIPAM3500C

... VIPAM3500C is a digital integrated protection relay that enables high-precision measurement and protection relay for switchgear power equipment. The switchgear panel ...

under-voltage protection relay
under-voltage protection relay
VIMAC3000

... large-capacity load starting and it causes equipment faults, burns, overheating, generation of abnormal noise, malfunction of relay, instrumental error and so on. VITZROTECH VIMAC-3000 has the functions to analyze the ...

recloser control protection relay
recloser control protection relay
RER620

RER620 is a dedicated recloser relay perfectly aligned for the protection, control, measurement, and supervision of utility distribution feeders and industrial power systems. RER620 provides protection ...

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ABB Oy Distribution Automation
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 device, directly ...

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Eaton Count Control Products
level protection relay
level protection relay
FPC 400

Tripping current: 5,000, 1 mA

FPC 400 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 it to be placed ...

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Iskra d.d.
phase unbalance protection relay
phase unbalance protection relay
RM2S

Relay to check voltage asymmetry, sequence and lack of phases 2 Module Three phase line 380...415V 50 and 60Hz Voltage asymmetry threshold adjustable 5...25% Adjustable ...

over-voltage protection relay
over-voltage protection relay
800VPR-3

Tripping current: 5 A
Trigger voltage: 310 V - 520 V

Three phase voltage Protection relay Monitors: Over / Under voltage, Phase failure and Phase sequence Supply Voltage: ...

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SELEC Controls Pvt. Ltd.
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