Digital protection relays

34 companies | 211 products
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earth-leakage protection relay
earth-leakage protection relay
EL731 series

Trigger voltage: 120, 240, 24, 48 V

... DC sensitive earth-leakage relay that offers complete coverage for all frequencies, with values between 0 and 6,000Hz. In addition to this, users will require two CTs for the entire frequency range, or, alternatively, ...

phase protection relay
phase protection relay
RX-5

Tripping current: 1 A - 1,000 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. ...

differential protection relay
differential protection relay

The X...DB3 series earth leakage relays type B are designed to measure the DC, AC and high frequency leakage current. Thanks to their distinctive feature (the displaying of the leakage current) it is possible to continuously ...

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FRER
current protection relay
current protection relay
X48DB3

The X...DB3 series earth leakage relays Type B are designed to measure the DC, AC and high frequency leakage current. Thanks to their distinctive feature (the displaying of the leakage current) it is possible to continuously ...

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FRER
current protection relay
current protection relay
X72DB3

The X...DB3 series earth leakage relays Type B are designed to measure the DC, AC and high frequency leakage current. Thanks to their distinctive feature (the displaying of the leakage current) it is possible to continuously ...

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FRER
earth-leakage protection relay
earth-leakage protection relay
SIA B

Trigger voltage: 230, 24, 110 V

... powered Overcurrent and Earth Fault Protection Relays, using the operating current through three specific current transformers fitted on the lines. Thanks to this adaptation the SIA-B ...

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FANOX ELECTRONIC
earth-leakage protection relay
earth-leakage protection relay
SIL-A

Trigger voltage: 24, 220, 48, 230 V

The SIL-A is an overcurrent and earth fault protection relay for primary and secondary distribution with auxiliary power supply 24-220 Vdc/ 48-230 Vac. The current measurement is obtained ...

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FANOX ELECTRONIC
over-voltage protection relay
over-voltage protection relay
SIA-F

SIA-F – SF6 & METALCLAD SWITCHGEAR OC&EF PROTECTION RELAY SIA-F protection relay is suitable to protect installations against O/C and E/F. Its compact ...

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FANOX ELECTRONIC
earth-leakage protection relay
earth-leakage protection relay
CBS4 series

Unit equivalent to 4 earth leakage protection networks. 4 independent programmable relays available Four inputs to connect the external toroidal transformers of the WG Superimmunized Type A relay ...

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CIRCUTOR
earth-leakage protection relay
earth-leakage protection relay
RGU-10 series

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
earth-leakage protection relay
earth-leakage protection relay
WRU10 series

Trigger voltage: 110, 230 V

... differential protection settings. protection trigger current. protection status messages, etc. Units with three programmable output contact relays, one switched and ...

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CIRCUTOR
phase sequence protection relay
phase sequence protection relay
DMP series

... values Prompt A/S by looking the LED panel which displays the causes of the type of fault and values 3 phase digital ampere meter function (Digital meter) Motor load rate(%) and Easy ...

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LS Industrial Systems
earth-leakage protection relay
earth-leakage protection relay
ELR-3A

Trigger voltage: 240 V

Earth Differential Relay Type A • earth leakage current measurement by external toroidal gearbox • measurement in true effective value (trms) • programming and display via a backlit LCD display - fault current (red ...

earth-leakage protection relay
earth-leakage protection relay
ELR-3B

Trigger voltage: 250, 230 V

... Monitor device Type B. Associated to external core balance transformer the CTB-1/xxx family. It has 2 programmables outputs relays. Main trip and prealarm signal. It has one free voltage input for external TRIP/RESET. ...

overload relay
overload relay
TRM-400

Tripping current: 290 A - 400 A

Digital thermal relays are designed to prevent and control loads from damage due to high current. 290A - 400A (Adjustable Overload Value) Error Delay Time Adjustable Operation Mode Adjustable ...

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Tense
overload relay
overload relay
TRM-10

Tripping current: 0.1 A - 10 A

Digital thermal relays are designed to prevent and control loads from damage due to high current. 40A - 100A (Adjustable Overload Value) 50% Fixed Current Asymmetry Error Delay Time ...

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Tense
overload relay
overload relay
TRM-300

Tripping current: 190 A - 300 A

Digital thermal relays are designed to prevent and control loads from damage due to high current. 190A - 300A (Adjustable Overload Value) 50% Fixed Current Asymmetry Error Delay Time ...

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Tense
earth-leakage protection relay
earth-leakage protection relay
DER3BDUAL/2I

Tripping current: 0.05 A - 7 A

DER3B DUAL – UNIVERSAL relay type B. Dossena presents the new DER3B DUAL series, the new generation of earth differential relays. The earth differential relays DER3B DUAL series ...

earth-leakage protection relay
earth-leakage protection relay
DER3BDUAL/6D

Tripping current: 0.05 A - 7 A

DER3B DUAL – UNIVERSAL relay type B. Dossena presents the new DER3B DUAL series, the new generation of earth differential relays. The earth differential relays DER3B DUAL series ...

earth-leakage protection relay
earth-leakage protection relay
DER3/1D

Tripping current: 0 A - 30 A

... 1DL is specifically used on LV networks in the TT and TN types of current. It offers a wide range of options in different protections due to the wide adjustment of current dispersion and threshold for a delayed 10-second ...

over-current protection relay
over-current protection relay

The DKR-24 Series, manufactured by Entes, is an overcurrent protection relay designed to avoid damage from overloading the motor. This is equipped with electronic coil ...

earth-leakage protection relay
earth-leakage protection relay
IPR-A

... interruption Features CT primary ratio selectable in 5 A steps (10 A to 6000 A) Line and ground RMS currents measurement 1 trip relay and 2 programmable auxiliary relay Control ...

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Orion Italia
over-voltage protection relay
over-voltage protection relay
SMPR-1

... voltage (50) Instantaneous phase overcurrent (50N/50G) Instantaneous ground overcurrent Overload alarm pickup level (51) Inverse time phase overcurrent (51N/51G) Inverse time ground ...

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Orion Italia
current protection relay
current protection relay
IPR-D

Ground Protection Relay Ground Protection Relay (IPR-D) has been designed to measure the ground RMS current under normal conditions or under disturbances. The current ...

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Orion Italia
over-current protection relay
over-current protection relay
7SR51

... product interface and the relay element is withdrawable for easy replacement. Inputs and outputs 4 CT + 8 BI + 6 BO 4 CT + 13 BI + 8 BO 4 CT + 38 BI + 18 BO 4 ...

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Siemens Energy automation and smart grid
IEC protection relay
IEC protection relay
G30

The G30 is a system designed for generator protection, and is suitable for applications where the transformer and generator are in the same protection zone. This allows for the required amount of protection ...

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GE Grid Solutions
voltage protection relay
voltage protection relay
REF630 IEC

Relion® REF630 IED is constructed to be world-class for managing utility and distribution substations. It is built to protect, manage as well as measure and supervise at the feeder-level with the control function feature. The ...

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ABB Oy Distribution Automation
current protection relay
current protection relay
EMR-3000

... s EMR-3000 motor protection relay is a multifunctional microprocessor-based protective relay for the protection of any size motor at all voltage levels. ...

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Eaton Count Control Products
under-current protection relay
under-current protection relay
FPC 200, Protection relay

Tripping current: 0.3 A - 30 A

... and prepared software for 4 main protection groups as feeder protection, transformer protection, motor protection and busbar protection. Every groupd ...

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Iskra d.d.
over-current protection relay
over-current protection relay
SEL-311L

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

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Schweitzer Engineering Laboratories
voltage protection relay
voltage protection relay
RM3C

Direct and pulsanting voltage or current relay Wall mounting Bidirectional direct or pusating voltage or current relay 2 Min. and / or Max. programmable alarms Input voltage 50mV... 200mV Input ...

overload relay
overload relay
LC 200

Tripping current: 0.5 A
Trigger voltage: 24 V

The LC 200 accessories electronic overload guard features a power supply that ranges from 12 to 24V AC or DC. It consists of a red LED six-digit display placed on the top of the device. It mounts on a ...

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Pavone sistemi
over-current protection relay
over-current protection relay
CGI 14N/C

CGI 14N/C is a numerical over current and earth fault relay, entirely digitized and integrated with microprocessor technology. This allows for analog to digital conversion of the valves ...

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CG Power Systems
voltage protection relay
voltage protection relay
MSAR5

... application of digital techniques to protection relay technology. The requirement for highly reliable control relay elements does however remain and often constitutes ...

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Mors Smitt BV
transmission line protection relay
transmission line protection relay
L-PRO 4000

... is a digital, microprocessor-based line distance protection system that provides comprehensive distance based line protection for medium to extra-high-voltage transmission lines. Apply ...

voltage protection relay
voltage protection relay
ISOPAK1xx series

Tripping current: 4 mA - 20 mA

... Supervision C/O relay outputs "Highest up" 4-20mA signal & RS-485 Modbus RTU outputs Description The digitally controlled ISOPAK1xx adds to Megacon's wide range of ISOGUARD products for insulation and earth ...

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Meagacon AS
arc flash protection relay
arc flash protection relay
VAMP 321

... Programmable operation zones Communication protocol support for SCADA and automation interfacing Supports maximum 6 Digital Inputs and 8 Digital Outputs for object (CB) status and control (order option dependent)

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Vamp
current protection relay
current protection relay
MDR-2

The MDR-2 is a differential current relay intended for protection of a generator against internal short circuits (leaking currents). It is based on a 16-bit digital signal processor providing ...

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DEIF