Phase protection relays

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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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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 ...

phase protection relay
phase protection relay
PGR-8800 series

Trigger voltage: 12, 48, 120, 240 V

... -8800 is a microprocessor-based relay that limits arc-fault damage by detecting the light from an arc flash and rapidly tripping. Phase-current-transformer inputs are provided for current-constrained ...

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 ...

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
overload relay
overload relay
PF-16R

Trigger voltage: 400, 440, 230 V

3-phase by COS φ PF-R does not need level sensors to detected dry running. It is designed for use with 3-phase motors from 1 to 630 A and over. It has a cable feed, visual indicator of the tripping ...

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FANOX ELECTRONIC
phase sequence protection relay
phase sequence protection relay
U3 series

... stages and stage misfortune. Lastly, Model U3S-420 is valid for 400 and 440 nominal V This device is fit to protect three-phase deployments against varieties in primary voltage. Delicate to off base stage arrangement. ...

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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 ...

over-voltage protection relay
over-voltage protection relay
PR200

Tripping current: 5 A
Trigger voltage: 250 V

... range. -. Built-in 2-channel relay, free to user set protected trip mode, alarm mode and trig mode. In protection mode, channel 1 relay can use for alarm, channel 2 for trig operation. -. ...

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 ...

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 loss protection relay
phase loss protection relay

... ensuring start-up and cause the system to trip. ENTES Phase Failure (Motor Protection) Relays offer the perfect solution to these defects. They are designed to impart 100% efficient ...

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, ...

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 ...

phase protection relay
phase protection relay
MS2V73

... is basically an attracted armature unit of simple & rugged construction powered from a bridge rectifier. Each phase of the relay can be set from 25 to 325 VAC in 50 V steps by using ...

over-voltage protection relay
over-voltage protection relay
VEUM400, VEUM400N series

VEUM400 / VEUM400N SERIES UNDER-OVER VOLTAGE RELAY - Compact Size - 1 Module ( 17,5mm) - Monitor own supply and detects if one or more phases exceed the set under or over voltage trip levels - Measure ...

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EL.CO.
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 ...

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EL.CO.
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 - Din ...

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EL.CO.
phase protection relay
phase protection relay
RMP-112D

Trigger voltage: 25 V - 125 V

... rsquo;s RMPs are protective overload and reverse power relays and parts of DEIF’s complete range of relays for generator protection and control. The RMPs are applied ...

phase protection relay
phase protection relay
Polarr

... functions through measuring the 3-phase and residual currents. The operations is conducted through the use of CTs. The unit is placed in the GVR and carry out auto-reclosing over current. It provides sensitive earth fault ...

electric motor protection relay
electric motor protection relay
RW_E series

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

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

over-current protection relay
over-current protection relay
Reyrolle 7SR45

... Reyrolle 7SR45 numeric relay provides both definite time and inverse time overcurrent and earth fault protection functions ensuring sensitivity with a minimum operate setting of 0.2 ⋅ ...

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Siemens Energy automation and smart grid
earth-leakage protection relay
earth-leakage protection relay
REF601

Trigger voltage: 24 V - 265 V

... a dedicated feeder protection and control relay intended for the protection and control of utility and industrial power systems in primary and secondary distribution networks. The relay ...

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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
phase protection relay
phase protection relay
MiCOM P441 - P444 series

... scheme distance relays provide flexible, fast and reliable protection of transmission and sub-transmission lines. Basic description: Full scheme 5-zone distance, plus aided directional earth fault (DEF) ...

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

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

Monitors: Phase loss, Phase unbalance, Phase sequence, Overload trip current, Under / Over current Suitable for 1Ø or 3Ø motors. Accuracy: 5% of set value. 2 C/O (DPDT) ...

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SELEC Controls Pvt. Ltd.
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 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 intervention ...

voltage protection relay
voltage protection relay
SEL-749M

... and cyclic overload currents. The relay offers all basic motor protection features, including short-circuit, load loss, load jam, and frequent-starting protection as well as imbalance ...

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Schweitzer Engineering Laboratories
phase sequence protection relay
phase sequence protection relay
PVR series

Trigger voltage: 150 V - 416 V

The phase sequence and phase failure protector trip relay is designed to monitor the correct phase rotation or sequence of a three-phase ...

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Crompton Instruments
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 relays. ...

three-phase protection relay
three-phase protection relay
LXPRC/S

Trigger voltage: 110, 208, 380, 400, 415 V

... for the output relay to energise, all phases must be present, the phase sequence correct and the phase to phase voltages within the set Under/Over trip ...

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Broyce Control
motor protection relay
motor protection relay
MPR-100

... of additional specific protection functions for motor industrial applications. Its versatility makes it the perfect solution for oil & gas, minery and all heavy-duty environments. Applications Metering & protection ...

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Orion Italia
digital protection relay
digital protection relay
DFK-05F

Trigger voltage: 380 V

Digital Asymmetry Adjutable Phase Failure Relay with 3×3 Digit LED Display Features The phase protection relays are designed to protect the three-phase ...

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Tense Electronic
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