Current protection relays

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Current 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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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 ...

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 induction ...

voltage protection relay
voltage protection relay
777-ACCUPOWER

... fully-programmable, 3-phase motor and pump protection relay. It allows for entry of motor hp rating, full-load amperes, efficiency, and power factors, and will then accurately calculate ...

over-current protection relay
over-current protection relay
900CPR-1-BL-U

Tripping current: 3, 5 A
Trigger voltage: 85 V - 270 V

... Single phase RMS current protection from Over / Under current • Accuracy : ± 1% of current • Measuring range of : 0.1A to 999A depending on CT selection • Certifications: ...

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SELEC Controls Pvt. Ltd.
self-powered protection relay
self-powered protection relay
SIA-C

OC&EF Protection Relay (self-powered + auxiliary power supply). - Self-powered with operating current through 3 standard current transformers /5 or ...

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FANOX ELECTRONIC
feeder protection relay
feeder protection relay
SIR-A

Tripping current: 1 A - 5 A
Trigger voltage: 24 V - 230 V

SIR-A Overhead Control / RTU & Feeder Protection The Fanox SIR-A is the Relay that offers the complete solution for Recloser Control and Feeder Protection with current, ...

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FANOX ELECTRONIC
phase unbalance protection relay
phase unbalance protection relay
SIL-C

Trigger voltage: 24 V - 230 V

SIL-C FEEDER & GENERATOR PROTECTION RELAY High Accuracy and Reliability in a compact device The SIL-C Relay protects Feeders and Equipment and includes comprehensive current, ...

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FANOX ELECTRONIC
earth-leakage protection relay
earth-leakage protection relay
RGU-10 series

Tripping current: 0.03 A - 30 A
Trigger voltage: 230 V

Electronic earth leakage protection relay, used to connect to the earth leakage transformers WG / WGC Series Superimmunized Type A relay with high frequency current ...

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CIRCUTOR
over-current protection relay
over-current protection relay
RGU-100B

... earth leakage current intensity monitoring and protection relay (IEC 62020), compatible with the WGB series, for type B loads (IEC 60755). High-performance relay with ...

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CIRCUTOR
current protection relay
current protection relay
CBS-400B

The earth leakage current intensity monitoring and protection relay (IEC 62020), compatible with the WGB series, for type B loads (IEC 60755) and with 4 totally independent channels. High-performance ...

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CIRCUTOR
earth-leakage protection relay
earth-leakage protection relay
X35DB3

... avoid unexpected power breaks. Main functions: - Continuous digital indication of the leakage current: total RMS, AC fundamental, AC high frequency - Double threshold: ...

earth-leakage protection relay
earth-leakage protection relay
X48DB3

... avoid unexpected power breaks. Main functions: - Continuous digital indication of the leakage current: total RMS, AC fundamental, AC high frequency - Double threshold: ...

earth-leakage protection relay
earth-leakage protection relay
X72DB3

... avoid unexpected power breaks. Main functions: - Continuous digital indication of the leakage current: total RMS, AC fundamental, AC high frequency - Double threshold: ...

current protection relay
current protection relay
3CR series

Tripping current: 15 A

KLIXON® 3CR 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 ...

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 with start-winding ...

overload relay
overload relay
OL12D

Tripping current: 20 A - 30 A

Contactor Overload - Overload for CR01C - CR12C Contactors Specifications • Housing Type Plastic

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
differential protection relay
differential protection relay
DER4/0E

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 ...

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DOSSENA
over-current protection relay
over-current protection relay
D5202S

... DESCRIPTION The D5202S is used to protect the power system by limiting the maximum supply current for a set of D5000 modules connected via Power Bus. This is particularly ...

earth-leakage protection relay
earth-leakage protection relay
ELR-3A

Trigger voltage: 24 V - 230 V

... delay time. Residual current protection relay with external CT. 2 operation threshold. Adjustable tripping and delay time. Introduction Range ELR Product name ELR-3A Product type ...

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Contrel elettronica
earth-leakage protection relay
earth-leakage protection relay
ELR-51AS

Tripping current: 0.03 A - 5 A

... Residual current protection relay Current sensors compatibility CT-1 earth leakage current sensor Technical characteristics Application Residual ...

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Contrel elettronica
earth-leakage protection relay
earth-leakage protection relay
ELR-52AS

Tripping current: 0.03 A - 5 A

... Residual current protection relay Current sensors compatibility CT-1 earth leakage current sensor Technical characteristics Application Residual ...

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Contrel elettronica
voltage protection relay
voltage protection relay
MEprotect

... functions, ~20 ANSI protection functions in one relay, plus energy measurements with up to 9th harmonic spectrum analyser - 4x current, 4x voltage and 1x ground current ...

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MITSUBISHI Automation
frequency protection relay
frequency 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 ...

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ABB Oy Distribution Automation
over-current protection relay
over-current protection relay
SIPROTEC 7SJ series

... 7SJ85 overcurrent protection has been designed specifically for protection of feeders and lines in medium-voltage and high-voltage systems. The SIPROTEC 7SJ86 overcurrent ...

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SIEMENS Energy automation and smart grid
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 device, directly ...

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Eaton Count Control Products
level protection relay
level protection relay
MEprotect

... functions, ~20 ANSI protection functions in one relay, plus energy measurements with up to 9th harmonic spectrum analyser - 4x current, 4x voltage and 1x ground current ...

over-voltage protection relay
over-voltage protection relay
PAO series

Trigger voltage: 24, 240 V

... monitored current exceed the set point level Imax, the protector will trip and the red LED will illuminate indicating the fault condition. During the time delay period the red LED will flash for the set ...

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Crompton Instruments
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.
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 re-start ...

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E-T-A
current protection relay
current protection relay
RM2I

Current relay 2 Module Min or max alarm, selectable on field Input 5A or 1A Adjustable set point, hysteresis and delay Field selectable negative or positive security (fail safe) Intervention ...

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IME Spa
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: - The most ...

feeder protection relay
feeder protection relay
PAS900 series

... inlet wire auto-input protection, capacitor proteciton, distribution transformer proteciton, motor differential protection, motor comprehensive protection and voltage comprehensive protection, ...

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Hangzhou Huning Elevator Parts Co., Ltd.
over-current protection relay
over-current protection relay
SEL-311L

... SEL-311L Line Current Differential Relay with integral four zone distance backup for easy-to-apply, high-speed line protection. Apply subcycle current differential ...

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Schweitzer Engineering Laboratories
over-current protection relay
over-current protection relay
CGI 14N/C

... and software, accompanies it. The relay is integrated with IDMT function. The relay are extremely safe and can provide quick protection against one or both over current ...

over-voltage protection relay
over-voltage protection relay
PCS-9611S

... -stage phase overcurrent protection (50/51P, 67P) • Zero sequence overcurrent protection (50/51G, 67G) • Sensitive earth fault protection (51SEF, 67SEF) • ...

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NR Electric
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