Digital protection relays

38 companies | 229 products
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earth-leakage protection relay / 1 NO/NC / panel-mount / high-sensitivity
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, ...

voltage protection relay / panel-mount / digital / programmable
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
power protection relay / panel-mount / programmable / digital
power protection relay
REM630 IEC

ABB motor protection boasts a comprehensive motor management IED for protection,control,measuring and supervision of medium and large motors in medium industrial power systems.The Motor Protection ...

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ABB Oy Distribution Automation
voltage protection relay / panel-mount / programmable / digital
voltage protection relay
RET630 IEC

Relion® RET630 is a comprehensive transformer management IED for protection, control, measuring and supervision of power transformers, unit and step-up transformers. RET630 features necessary control functions constituting ...

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ABB Oy Distribution Automation
differential protection relay / earth-leakage / DIN rail / flush-mount
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
earth-leakage protection relay / DIN rail / flush-mount / automatic reset
earth-leakage protection relay
X48DS

... 0,2÷5s • One or two operating trip relays. • Output relays test. • Manual (local or remote) or programmable automatic reset. • Continuous control of wiring connection between the relay ...

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FRER
earth-leakage protection relay / DIN rail / panel-mount / digital
earth-leakage protection relay
X72DD

DESCRIPTION The X...DD series earth leakage relays are designed to measure the leakage or unbalance currents caused by conductors or appliances insulation losses and to react, in case the set limits are exceeded, switching ...

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FRER
phase sequence protection relay / over-current / earth-leakage / panel-mount
phase sequence 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
over-current protection relay / earth-leakage / panel-mount / programmable
over-current 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 / earth-leakage / trip circuit / panel-mount
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
phase sequence protection relay / phase loss / phase unbalance / over-voltage
phase sequence protection relay
900VPR-2

Trigger voltage: 280 V - 520 V

3Ø-Digital Voltage Protection Relay, Self Powered [900VPR-2-280/520V] Measuring Parameter Under Voltage, Over Voltage, Under Frequency, Over Frequency, Phase Asymmetry, Phase Failure, ...

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SELEC Controls Pvt. Ltd.
phase sequence protection relay / phase loss / over-voltage / under-voltage
phase sequence protection relay
900VPR-BL-U-CE

Trigger voltage: 250 V

3Ø-Digital Voltage Protection Relay, Auxillary Supply [900VPR-BL-U-CE] Measuring Parameter Under Voltage, Over Voltage, Under Frequency, Over Frequency, Phase Asymmetry, Phase Failure, ...

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SELEC Controls Pvt. Ltd.
over-voltage protection relay / under-voltage / phase sequence / digital
over-voltage protection relay
VPRD2M

1Ø & 3Ø- Digital Voltage Protection Relay [VPRD2M] Measuring Parameter Under Voltage, Over Voltage, Phase Asymmetry, Phase Failure, Phase Sequence Electrical Connection 1Ø-2W, 3Ø-4W ...

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SELEC Controls Pvt. Ltd.
earth-leakage protection relay / DIN rail / programmable / digital
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
current protection relay / earth-leakage / DIN rail / programmable
current 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
frequency protection relay / earth-leakage / DIN rail / programmable
frequency 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
transmission line protection relay / voltage / for generators / IEC
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 ...

current protection relay / earth-leakage / DIN rail / automatic reset
current 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 / current / programmable / digital
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 / DIN rail / three-phase / automatic reset
overload relay
TRM-400

Tripping current: 290 A - 400 A

Digital Overload Relays are designed to protect the devices having precise operating current values against the errors likely to arise from excessive current. Descriptions: There are High (Overload ...

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Tense
overload relay / DIN rail / three-phase / automatic reset
overload relay
TRM-10

Tripping current: 0.1 A - 10 A

Digital Overload Relays are designed to protect the devices having precise operating current values against the errors likely to arise from excessive current. Descriptions: There are High (Overload ...

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Tense
overload relay / DIN rail / three-phase / automatic reset
overload relay
TRM-300

Tripping current: 190 A - 300 A

Digital Overload Relays are designed to protect the devices having precise operating current values against the errors likely to arise from excessive current. Descriptions: There are High (Overload ...

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Tense
earth-leakage protection relay / digital / differential / panel-mount
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 / DIN rail / digital / AC/DC
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 / 2 NO/NC / IEC / DIN rail
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 ...

SPDT protection relay / digital / DIN rail
SPDT protection relay
D2052M

MULTIPLEXER CONTACT-PROXIMITY RELAY OUTPUT REPEATER DESCRIPTION The D2052M Units is equipped with 32 relay output SPDT contacts. Connected with D2050M Unit repeat the status of each D2030M digital ...

synchronization protection relay / panel-mount / configurable / programmable
synchronization protection relay
CZIP-PRO

The CZIP-PRO - Protection and control of different MV switchgear cubicle types CZIP-PRO protection relay contains all the functions and features that have proven themselves in the previous ...

phase protection relay / over-current / earth-leakage / panel-mount
phase 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-current / phase sequence / IEC
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 / panel-mount / digital / programmable
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
phase sequence protection relay / phase unbalance / over-current / under-current
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 ...

phase sequence protection relay / over-current / under-current / overload
phase sequence protection relay
IMP series

Tripping current: 0.5 A - 100 A

... industrial fields and provide high safety and productivity Characteristics Protection Overload-49 Motor current is detected and is applied to I2t. If it reaches the characteristic curve, overload ...

voltage protection relay / current / pulse / panel-mount
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 ...

over-current protection relay / thermal / programmable / digital
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 / programmable / digital / panel-mount
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
current protection relay / digital / programmable / panel-mount
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
voltage protection relay / arc flash / current / AC/DC
voltage protection relay
857 series

... Bulletin 857 is a uniquely designed Motor-Feeder Protection device with an integrated Medium Voltage that offers solutions for the up to date motor and feeder protection essentials in one package. The ...

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Allen Bradley
under-current protection relay / over-voltage / earth-leakage / temperature
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 / synchronization / programmable / configurable
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
overload relay / DIN rail / AC/DC / digital
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 / digital / programmable / panel-mount
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 / panel-mount / digital
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
voltage protection relay / insulation / digital / DIN rail
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