Protection relays

 
446 Industrial products | 112 Companies
 
 
Siemens Energy
Three-phase differential protection relay  7PG21 Siemens Energy

The 7PG21 is a three phase unit differential protection used to detect in zone phase and earth faults. The relay is applied to overhead line and underground cable circuits as well as shorter circuits such as interconnectors.
Relays (and associated CTs) ...

Centralized busbar protection relay  7SS60 Siemens Energy

The SIPROTEC 7SS60 system is an inexpensive numerical differential current protection for busbars in a centralized configuration.
It is suitable for all voltage ...

Circuit breaker failure protection relay  7SV600 Siemens Energy

SIPROTEC 7SV600 is a numerical relay used for circuit-breaker failure protection. It is suitable for use at all voltage levels and in all applications.

Protection functions
* Circuit-breaker failure protection (single or three-pole with/without current)
* Independently settable ...

GE Digital Energy
Three-phase differential protection relay GE Digital Energy

MIB High Impedance Bus Differential System
Three-phase high impedance differential protection for substation busbars. The MIB, a member of the MII Family of protection relays, is a high impedance busbar protection relay, designed to provide ...

Centralized busbar protection relay  BUS 1000/2000 GE Digital Energy

BUS1000/2000 Bus Bar Protection

The BUS 1000/2000 is a solid state, high speed protection
system for the detection ...

Circuit breaker failure protection relay  C 60 GE Digital Energy

The C60 Breaker Protection System is a substation hardened controller that provides a complete ...

FANOX ELECTRONIC
Pump protection relay without requiring level sensor  3 -16A FANOX ELECTRONIC

Without requiring level sensors to detect dry running.
* For 1-phase motors from 3 to 16 A.
* Precise motor heating and cooling memory, reproduces
its thermal image.
* Visual indication of tripping ...

Pump protection relay without requiring level sensor FANOX ELECTRONIC

Without requiring level sensors to detect dry running.
* For 1-phase motors from 3 to 16 A.
* Precise motor heating and cooling memory, reproduces
its thermal image.
* Visual indication of tripping ...

Generator protection relay FANOX ELECTRONIC

- For generators up to 1000 Vac
- With thermal memory
- Visual indication of tripping cause
- Fast tripping curves
For 3-phase motors from 1 to 630 A and over. Cable feed
through.
* Precise motor heating and cooling memory, reproduces
its thermal ...

GAVE ELECTRO
Pump motor protection relay GAVE ELECTRO

Control panel has been designed on a user
friendly intuitive approach. ...

Marsh Bellofram
Under-voltage and overvoltage protection relay  UPA-200 series Marsh Bellofram

Marsh Bellofram has announced the UPA-200 high-voltage universal power alert series, available in March 2012.

The UPA-200 is a reliable safety tool for pre-verification of the presence or absence of residual electrical power or charges, or as a zero energy indicator, both before or during mechanical lock out/tag out (LOTO) procedures. When illuminated, the device (patent pending) provides ...

PONOVO POWER CO., LTD
Digital protection relay  Protection digital relay PNF801 PONOVO POWER CO., LTD

The new generation of optical digital relay tester. 8 optical port design,and powerful data processing capability can realize full functional test of the optical digital protection devices. Equipped with GPS,IRIG - B code synchronization interface and supports the IEEE1588 to provide the conditions to substation ...

Short-circuit protection relay  Relay Test set PWF-3 PONOVO POWER CO., LTD

This relay test set can meet the increasing demand for testing IEC61850 based relay with fiber optical interface and GOOSE interface

Features of relay test PWF-3:
Designed to test IEC61850 ...

IGBT solid state relay  Protection Relay Test Set (6I) PNS601 PONOVO POWER CO., LTD

PNS601- Protection Relay Test Set (6I)
The handheld digital signal analyzer PNS601 is specially designed for fiber optic signal instruments. This relay test set - digital signal analyzer has the functions of multimeter, oscilloscope, harmonic meter and CT polarity analyzer ...

ABB Oy Distribution Automation
Feeder protection relay  REF615 IEC/ANSI ABB Oy Distribution Automation

REF615 is a dedicated feeder IED perfectly aligned for the protection, control, measurement and supervision of utility and industrial power distribution systems. REF615 fits both isolated neutral networks and networks with resistance or impedance earthed neutrals. Furthermore, making use of the IED's advanced inter-station ...

Feeder protection relay  REF630 IEC ABB Oy Distribution Automation

REF630 is a comprehensive feeder management IED for protection, control, measuring and supervision of utility and industrial distribution substations. REF630 is a member of ABB's Relion® product family and a part its 630 product series characterized by functional scalability and flexible configurability. REF630 also features ...

Feeder protection relay  REF610 IEC ABB Oy Distribution Automation

REF610 is a feeder IED for protection, measuring and supervision of utility and industrial distribution power systems. REF610 is a member of ABB's Relion® product family and part of its 610 product series. The series includes IEDs for feeder protection, motor protection and general system voltage ...

MURRELEKTRONIK
Motor protection relay  max. 20 mA MURRELEKTRONIK

Coupling modules from Murrelektronik can disconnect, switch, or convert voltage - even where space is at a premium. Our product portfolio comprises a diversity of relay and optocoupler modules that use the practical terminal block format. Our ...

Multi-function safety relay  6 A, 24 VDC | MIRO SAFE FLEX MURRELEKTRONIK

Coupling modules from Murrelektronik can disconnect, switch, or convert voltage - even where space is at a premium. Our product portfolio comprises a diversity of relay and optocoupler modules that use the practical terminal block format. Our ...

Over-current and short-circuit protection relay  1 - 10 A | MICO series MURRELEKTRONIK

In the field of power supply,> Murrelektronik offers complete system solutions from a single source. Our product portfolio includes a complete range of products, from simple transformers through to battery-backed, redundant, intelligent ...

Littelfuse SELCO
Differential protection relay  70 X 100 mm Littelfuse SELCO

T2900 Differential Current Relay

* Protection of generators against ...

Distribution protection relay  PARALLEL Littelfuse SELCO

T5000 Paralleling Relay

* Manual synchronisation
* Adjustable voltage difference
* 50 hour burn-in before ...

Overcurrent / earth fault protection relay  70 X 100 mm Littelfuse SELCO

T2800 Overcurrent or Earth Fault Relay
* Protection of generators against earth faults or overcurrent
* Visual indication of power, pick-up and relay tripping
* ...

CROUZET
Motor protection relay  24 - 230 V AC | ETM CROUZET

- Controls temperature of machines using built-in PTC probes
- Line break ...

Safety relay CROUZET

Crouzet, the automation control component manufacturer, offers safety relays with different levels of safety including ...

Safety relay with time-delayed output  24 V | KZR3-RS CROUZET

- "Emergency stop" and "mobile guard monitoring" functions
- Safety timer function from 0,5 s to 30 s
- ...

Littelfuse
Feeder protection relay  65 - 265 VAC, 80 - 275 VDC | PGR-7200 series Littelfuse

The PGR-7200 is a feeder-protection relay that provides integrated protection, metering, and data-logging functions.

Features/Benefits:
- Eight functions to protect against ...

Generator protection relay  120 VAC, 12 - 24 VDC | PGR-4300 series Littelfuse

The PGR-4300 generator ground-fault relay provides a simple method for alarming a ground-fault condition on generators without the need for ...

Motor protection relay  240 VAC | PGR-6100 series Littelfuse

The PGR-6100 Ground-Fault & Insulation Relay is designed to provide basic protection for a motor, ...

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