AC protection relays

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AC protection relays | Choosing the Right Protection Relay
Protection relays enable the safe distribution of electricity from the grid. Their function is to detect anomalies in the grid that could lead to dangerous situations and, if necessary, interrupt the electrical circuit for as long as necessary. They provide differential, overcurrent, and arc flash protection. This protection is ensured by the relay’s ability to respond rapidly. A relay can consist of several modules, each with its own function.
current protection relay
current protection relay
MDR-2 series

Tripping current: 5 A
Trigger voltage: 250 V

... differential protection and short-circuit protection relay for generator protection against internal short circuits (leaking currents). The MDR-2 is a state-of-the-art ...

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DEIF
arc flash protection relay
arc flash protection relay
AFR-M

Tripping current: 5 A
Trigger voltage: 220 V

... connected to one relay. It used to limits damages to equipment, improve safety, avoid and protect personnel injuries. It’s also can be used as a stand-alone arc protection relay or ...

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Chongqing Blue Jay Technology Co. Ltd
earth-leakage protection relay
earth-leakage protection relay
LELRF-0300

Tripping current: 300 mA

• Type A – Earth Leakage Relay • Compact dimensions – 17.5mm wide (DIN Rail mount) • True RMS • Fixed Trip level (300mA) and Time delay (0s) • Combined Test and Reset button • 1 x SPDT Relay output This ...

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Broyce Control
temperature protection relay
temperature protection relay
ICM series

Tripping current: 6 A
Trigger voltage: 230 V

• thermistor motor protection relay • 5 selectable functions • up to 6 PTC-sensors in series switchable test function (without sensor connected) • probe short and/or open circuit detection automatical, ...

earth-leakage protection relay
earth-leakage protection relay

The AC / DC Earth Leakage Unit is a residual current detection unit which is powered from the vehicle’s battery or AC supply and measures the sum of the current in the primary ‘supply and return’ conductors ...

voltage protection relay
voltage protection relay
EPPC02

Tripping current: 10 A
Trigger voltage: 250 V

Single and three phase protection Phase failure (loss phase) protection Phase sequence protection Adjustable voltage protection Over voltage and/or low voltage protection Contact ...

over-current protection relay
over-current protection relay
XMR-A

... fault recording • 64 sample for cycle measurement for accuracy of protection element COMMUNICATION SECURITY Communication Security through redundancy protocol and Cyber Security ...

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THYTRONIC
phase protection relay
phase protection relay
MS2V73

High speed differential protection for various items of power system plant including generators, busbars, motors & the individual windings of power transformers and for restricted earth fault applications. The MS2V73 ...

motor protection relay
motor protection relay
MPR-100

Motor Protection Relay The device has been designed for continuous monitoring of electrical parameters in low voltage systems. It allows direct, close-distance or remote monitoring via RS-485 and bluetooth ...

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Orion Italia
temperature protection relay
temperature protection relay
RZ1PK116

Trigger voltage: 115 V - 240 V

earth-leakage protection relay
earth-leakage protection relay

Tripping current: 30 mA - 30,000 mA
Trigger voltage: 220 V

... leakage current protection relayis used together with LV circuit breaker, tripping coil and toroidal transformer in combination with leakage current protection. The connections that must be made when ...

phase loss protection relay
phase loss protection relay
FK-01

Trigger voltage: 380 V

Phase Failure Relay Features The phase protection relays are designed to protect the three-phase loads from damage caused by mains voltage. - Asymmetry : ~30%

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Tense Electronic
thermal protection relay
thermal protection relay
EOL Series

Tripping current: 0.1 A - 150 A

... Wide adjustable current range (5:1) ‧ Phase failure, over current, inrush current, phase unbalance protection ‧ Quick response protection within 3 seconds ‧Adjustable trip class 5/10/20/30 ‧4-in-1 ...

thermal protection relay
thermal protection relay
TOR-C, RTD, RTE

Setting range from 0,3 up to 800 A Direct mounting on contactor or separated with special kit Automatic reset and /or manual

thermal protection relay
thermal protection relay
JR36 Series

Tripping current: 0.35 A - 160 A

... bimetal type thermal over-load relay is suitable for the circuit of AC 50Hz, rated operating voltage Ue: AC 690V, current of 0.25~160A, as the use of over-load and break phase ...

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PEOPLE ELE. APPLIANCE GROUP CO., LTD.
thermal protection relay
thermal protection relay

voltage protection relay
voltage protection relay
S91

Tripping current: 0 A - 16 A
Trigger voltage: 220 V - 415 V

S91 is a protection device for electric motors. It allows the detection of incorrect phase sequence or phase failure, excess current consumption, no-load operation with power factor measurement. The device has an input ...

voltage protection relay
voltage protection relay
MSR

Tripping current: 6, 8 A
Trigger voltage: 230 V

... life due to a dropout delay. Specially recommended for liquid-filled measuring instruments. Technical data Supply voltage AC 230 V, 50 – 60 Hz Power input 6 VA Control voltage DC 35–40 V pulse Switching output ...

earth-leakage protection relay
earth-leakage protection relay
X35DB34DCR102

Tripping current: 30 mA - 5,000 mA
Trigger voltage: 230 V

... A and AC earth leakage relays, type B earth leakage relays are able to detect residual currents with both DC and AC components. This relay is used ...

earth-leakage protection relay
earth-leakage protection relay
X35DB34DCX112

Tripping current: 30 mA - 5,000 mA
Trigger voltage: 230 V

... A and AC earth leakage relays, type B earth leakage relays are able to detect residual currents with both DC and AC components. This relay is used ...

three-phase motor pump protection relay
three-phase motor pump protection relay
SubMonitor

... and easily. The SubMonitor is the latest innovation in 3-phase pump protection from Franklin Electric. Using state-of-the-art technology, the SubMonitor provides the ultimate protection for a pump and ...

over-excitation protection relay
over-excitation protection relay
KUS 0602

Tripping current: 8 A

Overexcitation controls from KUHSE are used to increase the starting force of actuating solenoids. Consequently the attraction time is minimized automatically. Individual solutions can be supplied according to the customers´ request. ...

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