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Trigger voltage: 100 V - 240 V
... Series arc-flash relay is a cost-effective solution that reduces arc-fault damage by detecting the light from an arc flash and rapidly tripping. Two remote light sensors can be connected to one relay and multiple AF0100 ...
Littelfuse
... Entry-level, yet powerful protection for motors and other electrical assets, finding application in power control centres and switchgear, motor control centres, etc. Complete and reliable protection for any size LV ...
MITSUBISHI Automation
... The REA 105 module detects light and carries out tripping if the main REA 101 module simultaneously provides an overcurrent signal. REA 105 modules are typically used for main-tie-main configured switchgears or as selective arc monitoring ...
ABB Oy Distribution Automation
... The Multilin 889 relay, a member of the Multilin 8 Series protective relay platform, has been designed for the protection, control, monitoring and management generators and in-zone transformers ...
... independent measuring loops (6-system distance protection) •Several distance- protection functions can be selected: Classic, reactance method (RMD), impedance protection for transformers •Directional ...
SIEMENS Energy automation and smart grid
... Five zone phase-to-phase distance protection (21P) • One zone phase-to-phase distance protection for pilot scheme (85) • Five zone phase-to-ground distance protection (21G) • One zone phase-to-ground ...
NR Electric
Tripping current: 1 A - 5 A
... Breaker-failure protection relay
Technical specifications
- Functions: Detection of breaker
Ingeteam GmbH
... 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 zone distance ...
Schweitzer Engineering Laboratories
... 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 & earth elements and a breaker ...
CG Power Systems
... Power has NS40A Audio Tone Frequency Shift Keyed Relay Channel. The carrier channel can be configured in the one-way to transfer trip application protection or in the two ways for the breaker failure protection ...
Tripping current: 0.16 A - 80 A
... JRS1 series thermal over-load relay is suitable for the circuit of AC50～60Hz, rated operating voltage Ue: 380V, rated current 0.1～80A, as the use of over-load and break phase protection for AC motor. Thermal ...
PEOPLE ELE. APPLIANCE GROUP CO., LTD.
... WG series electronic differential protection relay for connection to external WG / WGS / WGC series toroidal transformers These are highly reliable electronic relays with the option of a fixed or adjustable ...
CIRCUTOR
... Electronic earth leakage protection relay, used to connect to the earth leakage transformers WG / WGC Series These electronic relays offer a high reliability, with the option of a fixed or adjustable ...
CIRCUTOR
Tripping current: 0.03 A - 30 A
... 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 with ...
CIRCUTOR
... 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 and the CT: ...
FRER
Tripping current: 0.03 A - 30 A
... The new range of Type A earth leakage relays with separate toroid provides maximum safety and reliable protection in compliance with EN 60947-2 Annex M. Tripping current IΔn adjustable from 30mA to 30A. ...
FRER
Tripping current: 0.03 A - 30 A
... earth leakage relays with separate toroid provides maximum safety and reliable protection in compliance with EN 60947-2 Annex M. Tripping current IΔn adjustable from 30mA to 30A. Settings by means of ...
FRER
Tripping current: 15 A
... 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 both split phase and capacitor start motors. The 3CR relay ...
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 currents up to 25 amperes. • ...
Trigger voltage: 80 V - 230 V
... The contact protection relay BA 7961 protects sensitive control contacts of e.g. digital plc outputs, limit contacts on measuring devices, low load reed contacts against early wearing. It has a low input consumtion on ...
Trigger voltage: 230, 24, 48, 110 V
... • Earth leakage relay type A • External toroidal • Green power LED indicator (ON) • Red relay tripped LED indicator (TRIP) • Front TEST and RESET buttons • Modular DIN housing, 1 module, with transparent cover, suitable ...
Contrel elettronica
Trigger voltage: 12 V - 415 V
... Adjustable tripping and delay time. Earth leakage relay with 1 operation threshold, flush mount. External CT. Introduction Range ELR Product name ELR-1E Product type Residual current protection relay Current ...
Contrel elettronica
Trigger voltage: 24, 48, 110, 240, 415 V
... indicator (TRIP). Fail safe. Earth leakage relay with 2 operation thresholds, flush mount. External CT. Fail safe. Introduction Range ELR Product name ELR-2 Product type Residual current protection relay Current ...
Contrel elettronica
... barrier in ATEX Zone 2/22 Compact 22.5 mm format Suitable for RDX8 or other sensor Removable terminals Cycle before dangerous failure: B10d = 2,000,000 at 2A Risk duration: 10 ms max Cable severing protection: ...
... OC&EF Protection Relay (self-powered + auxiliary power supply). - Self-powered with operating current through 3 standard current transformers /5 or /1, to obtain current measurements. Universal 24-230 Vac/dc auxiliary ...
FANOX ELECTRONIC
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, voltage, and frequency. 4 ...
FANOX ELECTRONIC
Trigger voltage: 120, 230 V
... is composed of multirange electric modular relays. It is specifically designed for direct pulse currents. Its delay time and sensitivity can be adjusted, with near-immunity to external interruptions. The relay is built ...
FANOX ELECTRONIC
... dependability of electrical equipment. Voltage Protection Relay: KINRED We built it to respond to both overvoltage and under-voltage situations, among other voltage irregularities. Our voltage protection ...
Tripping current: 0.1 A - 16 A
Trigger voltage: 24 V - 250 V
... - **Physical Characteristics:** Relay housing width 18 mm, clip-on DIN rail. Adjustment via front levers. - **Features:** - Circuit protection: allows triggering an alarm or cutting power in case of overcurrent ...
Trigger voltage: 300 V - 500 V
... changeover contact 8A/250V. Relay trip delay of 2s. Hysteresis 2%. - Physical: 1-module width housing (18mm), DIN rail mountable. 3 LEDs to indicate relay status, voltage fault, phase sequence fault. - The relay ...
Trigger voltage: 85 V - 265 V
... detection relay is a versatile and independently operating device for bay based protection. It supports 4-channels arc signal detection and can configuration multiple arc tripping modes, ensuring accurate and fast fault ...
Chongqing Blue Jay Technology Co. Ltd
... AFR-3S Arc flash relays are mainly used to detect arc faults in electrical systems and protect equipment and personnel in electrical systems from arc faults. The arc flash protection relay can detect ...
Chongqing Blue Jay Technology Co. Ltd
Tripping current: 5 A
Trigger voltage: 220 V
... detection, the AFR-M offers exceptional protection capabilities, helping to minimize arc flash damage for personnel and equipment. High-Speed Tripping for arc flash protection The AFR-M arc flash protection ...
Chongqing Blue Jay Technology Co. Ltd
Tripping current: 0.03 A - 30 A
Trigger voltage: 48 V - 400 V
... Din modules Dossena presents the DER4B range, the new generation of type B differential toroid relays. DER4B is recommended for electrical protection in the tertiary sector, where devices that generate alternating, ...
DOSSENA
Tripping current: 0.03 A - 30 A
Trigger voltage: 48 V - 400 V
... Recessed 96x96mm Dossena presents the DER3B range, the new generation of type B differential toroid relays. DER3B is recommended for electrical protection in the tertiary sector, where devices that generate alternating, ...
DOSSENA
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 and residual current protection thanks ...
DOSSENA
Tripping current: 0.1 A - 0.16 A
Trigger voltage: 690 V
... GSR1 series thermal overload relay is used in AC 50Hz (or 60Hz); rated voltage is up to 690V, for protecting AC motor against overload or phase-breaking. ...
Tianshui 213 Electrical Apparatus Group CO.,LTD.
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 in demanding ...
Iskra d.d.
... for 2 zones and possibility for generator set emergency trip (separate contact) Operation time 7 ms (including the output relay) Non-volatile trip status ...
Vamp
A protection relay shuts off a machine operating in a way that represents a potential risk to itself.
ApplicationsThese devices supervise the operation of a machine or other installation by measuring current, voltage or phase variations. It shuts off the machine, cuts off power to an installation or triggers an alarm when a parameter exceeds authorized thresholds.
TechnologiesAs with other relays, electromechanical models exist, though most now are semiconductor-based solid state relays. Some are directly programmable and are in ISO cases for rail installation.
How to chooseChoice of a protection relay depends on the monitored parameters: overcurrent, zero velocity, excessive speed, current consumption, leaks, etc.
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