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.
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arc flash protection relay
arc flash protection relay
D0920 series

... circuit breakers with a 220/250 Vdc shunt trip coil. The D0920 has one output indication relay with an isolated normally-open contact, and one output indication relay with an isolated normally-closed ...

earth-leakage protection relay
earth-leakage protection relay
RG1M series

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 ...

earth-leakage protection relay
earth-leakage protection relay
RGE series

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 ...

earth-leakage protection relay
earth-leakage protection relay
X35DB3

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 ...

earth-leakage protection relay
earth-leakage 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 ...

earth-leakage protection relay
earth-leakage 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 ...

feeder protection relay
feeder protection relay
SIL-G

Trigger voltage: 24 V - 230 V

SIL-G Advanced Feeder Protection Protection for Renewable Energy Facilities, Industrial Plants, and Secondary Network The SIL-G is a complete protection and control relay ...

over-voltage protection relay
over-voltage protection relay
VP series

Trigger voltage: 230, 275 V

... With thermal separation device • Visual indication of a fault in the equipment • Remote signalling of the protection status • Plug-in protection modules which facilitate maintenance

current protection relay
current protection relay
3CR series

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. ...

grid and system protection relay
grid and system protection relay
NA003-M64

Trigger voltage: 24, 110 V

Grid protection monitoring relay RE series; Frequency and voltage monitoring; Grid and system protection; Functionally Safe; Measuring voltage 3 x 400/230V AC; Supply ...

grid and system protection relay
grid and system protection relay
NA003.COM-64

Trigger voltage: 24 V - 110 V

... system protection monitoring relay RE series; Frequency and voltage monitoring; Functional safety; Measuring voltage 3 x 400/230V AC; Supply voltage 24V DC, 110-240V AC; ...

earth-leakage protection relay
earth-leakage protection relay
DER4B/2D

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 ...

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DOSSENA
earth-leakage protection relay
earth-leakage protection relay
DER4B/2I

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 ...

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DOSSENA
earth-leakage protection relay
earth-leakage protection relay
DER4/0D

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 ...

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DOSSENA
power protection relay
power protection relay
CHI14

Tripping current: 16 A
Trigger voltage: 250 V

... available in different versions. Solid State Relays are suitabe to either switch AC or DC loads up to 6 A. For AC relays a distinction is made between synchronously ...

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Releco
earth-leakage protection relay
earth-leakage protection relay
ELR-1E

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 ...

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Contrel elettronica
earth-leakage protection relay
earth-leakage protection relay
ELR-2

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 ...

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Contrel elettronica
earth-leakage protection relay
earth-leakage protection relay
ELR-3A

Trigger voltage: 24 V - 230 V

... delay time. Residual current protection relay with external CT. 2 operation threshold. Adjustable tripping and delay time. Introduction Range ELR Product name ELR-3A Product type Residual current ...

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Contrel elettronica
over-voltage protection relay
over-voltage protection relay
800VPR-3

Tripping current: 5 A
Trigger voltage: 310 V - 520 V

• Three phase voltage Protection relay • Monitors: Over / Under voltage, Phase failure and Phase sequence • 1 C/O DPDT output relay • Auto reset feature available Brief Specifications Measuring ...

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SELEC Controls Pvt. Ltd.
over-voltage protection relay
over-voltage protection relay
900VPR-BL-U-CE

Tripping current: 3, 5 A
Trigger voltage: 50 V - 500 V

... 5% of setting ±120ms Output Contact : 2 x 1 C/O (SPDT) Output Rating : NC: 3A@250V AC, NO: 5A@250V AC (Res) Operating Voltage : 50 to 288V AC (L-N), 85 to 500V AC ...

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SELEC Controls Pvt. Ltd.
over-voltage protection relay
over-voltage protection relay
VPRD2M

Tripping current: 5 A
Trigger voltage: 127 V - 288 V

• 3 phase and single phase RMS voltage protection relay • Monitors: Over / Under Voltage, Phase asymmetry, Phase failure, Phase sequence. • Accuracy : ± 1% of Voltage. • Supply Voltage: 127 to 288V ...

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SELEC Controls Pvt. Ltd.
overload relay
overload relay
GSR1-09

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.

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Tianshui 213 Electrical Apparatus Group CO.,LTD.
level protection relay
level protection relay
XT series

Tripping current: 400 A

XT IEC overload relays Eaton’s XT line brings IEC power control to a whole new level. The XT IEC series includes non-reversing and reversing contactors and starters as well as overload relays and accessories. ...

thermal protection relay
thermal protection relay
TH-N Serie

Motor protection relays that protect your motor against burnout. Can be used for protection against motor burnout during overload or locked rotor. Offers a wide range of functions, including ...

thermal protection relay
thermal protection relay
TH-T series

Tripping current: 0.16 A - 480 A

Protects motors against overload and locked rotor, securing safe operation. Standard model complies with Japanese and many international standards.

motor protection relay
motor protection relay
RX series

Tripping current: 1 A - 2,000 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. ...

voltage protection relay
voltage protection relay
46212 series

Tripping current: 3 A - 4 A
Trigger voltage: 30 V - 250 V

PLe/SIL3/Cat.4 Supply voltage 24V AC and DC Connection for 4 sensors normally open/ normally closed Monitoring of connected contactors (EDM) Very compact design 1 relay safety ...

voltage protection relay
voltage protection relay
HC47AB10AG

TYPE 5247 ALTERNATING RELAY, 240 VOLTS, OPEN TYPE • Enclosure Type : Open • Item Type : Alternating Relay • Series : 5247

level protection relay
level protection relay
FPC 400

Tripping current: 5,000, 1 mA

FPC 400 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 ...

current protection relay
current protection relay
RM2I

Current relay 2 Module Min or max alarm, selectable on field Input 5A or 1A Adjustable set point, hysteresis and delay Field selectable negative or positive security (fail safe) Intervention inhibition ...

power protection relay
power protection relay
DMP300

Tripping current: 1, 2, 5 A
Trigger voltage: 110, 220 V

... design that suitable for severe environment. The measurement, protection AI isolation sampling channels are fully independent. The specialized analog and digital filtering design and high-accuracy AC ...

current protection relay
current protection relay
SEL-300G

... with IEEE turbine protection standards, SEL has applied its expertise in the production of microprocessor-based relays to create the SEL-300G, a generator relay that includes several ...

thermal protection relay
thermal protection relay

Tripping current: 5 A - 30 A

... Great accuracy Full reliability Phase unbalance protection Direct mount to IEC contactors Panel mount adapter for NEMA contactors Interchangeable with thermal overload relay ...

over-current protection relay
over-current protection relay
VIPAM3500C

Tripping current: 5 A
Trigger voltage: 110 V

... VIPAM3500C is a digital integrated protection relay that enables high-precision measurement and protection relay for switchgear power equipment. The switchgear panel ...

single-phase protection relay
single-phase protection relay

Tripping current: 63 A
Trigger voltage: 275, 175 V

... under voltage protective device considered modular design. The circuit board adopted good quality Latching relays and others components with reliable performance. When the power supply is unstable (voltage ...

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Yueqing RunEasy Electronic Technology Co.,Ltd.
phase protection relay
phase protection relay
KCC101x series

Trigger voltage: 100 V - 480 V

KCC101x Series KCC101x - SINGLE PHASE OVERCURRENT GUARD Single Phase Overcurrent Protection with Definite Time Trip Delay Two individually setable overcurrent relays For ...

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