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Supplier: Littelfuse, Inc.
Description: The SE-502 Ground-Fault Ground-Continuity Detector provides Class-A GFCI trip level and trip times for personnel protection. As little as 5 mA of ground-fault current can be detected, and the internal neutral-grounding resistor limits the maximum
- Supply Voltage Range: 120 volts
- Type: AC Power Supply, DC Power Supply
- Features: Ground (Earth) Fault
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Supplier: Radwell International
Description: RELAY, GROUND FAULT PROTECTION, 8 AMP, 250 VAC. FREE 2 YEAR RADWELL WARRANTY
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Supplier: Littelfuse, Inc.
Description: The SE-703 is a microprocessor-based ground-fault relay for resistance- and solidly-earthed systems. It offers sensitive ground-fault detection as low as 25 mA and can be used on systems with significant harmonic content. The SE-703 provides feeder-level
- Type: DC Power Supply
- Features: Ground (Earth) Fault
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Supplier: Littelfuse, Inc.
Description: The SE-703 is a microprocessor-based ground-fault relay for resistance- and solidly-earthed systems. It offers sensitive ground-fault detection as low as 25 mA and can be used on systems with significant harmonic content. The SE-703 provides feeder-level
- Type: DC Power Supply
- Features: Ground (Earth) Fault
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Supplier: Littelfuse, Inc.
Description: The SE-703 is a microprocessor-based ground-fault relay for resistance- and solidly-earthed systems. It offers sensitive ground-fault detection as low as 25 mA and can be used on systems with significant harmonic content. The SE-703 provides feeder-level
- Supply Voltage Range: 120 to 240 volts
- Type: AC Power Supply, DC Power Supply
- Features: Ground (Earth) Fault
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Circuit Protection Components - Generator Ground Fault Relay-12Vdcsupply / Box Littelfuse -- 64R7186Supplier: Newark, An Avnet Company
Description: GENERATOR GROUND FAULT RELAY-12VDCSUPPLY / BOX
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Circuit Protection Components - Sensitive Ground Fault Relay-24Vdcsupply / Box Littelfuse -- 64R7189Supplier: Newark, An Avnet Company
Description: SENSITIVE GROUND FAULT RELAY-24VDCSUPPLY / BOX
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Circuit Protection Components - Generator Ground Fault Relay-120V Supply / Box Littelfuse -- 64R7187Supplier: Newark, An Avnet Company
Description: GENERATOR GROUND FAULT RELAY-120V SUPPLY / BOX
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Circuit Protection Components - Sensitive Ground Fault Relay-240V Supply / Box Littelfuse -- 64R7190Supplier: Newark, An Avnet Company
Description: SENSITIVE GROUND FAULT RELAY-240V SUPPLY / BOX
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Supplier: Thermon, Inc
Description: The Caloritech™ CPG Ground Fault Protection Control Panel is specifically designed to provide ground fault protection of permanently installed commercial and industrial heating equipment such as infrared radiant heaters, and to protect the heating equipment
- Supply Voltage: AC Voltage
- Secondary Applications: Industrial
- Display Type: No Display
- Features: Other
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Supplier: Schneider Electric
Description: Sepam Protection Relays Protection Relays for Basic Applications Protection Relays for advanced applications Protection Relays for Demanding Applications Protection Relays for Demanding Applications Vamp Arc Flash
- Features: Ground (Earth) Fault
- Mounting: Panel
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Supplier: UL Standards & Engagement
Description: 1.1 These requirements cover ground-fault current sensing devices, relaying equipment, or combinations of ground-fault current sensing devices and relaying equipment or equivalent protection equipment for use in ordinary locations that will operate to cause a
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Supplier: Quarktwin Technology Ltd.
Description: MOTOR GROUND FAULT & INSUL RELAY
- Operating Temperature: 14 to 140 F
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Supplier: DigiKey
Description: MOTOR GROUND FAULT & INSUL RELAY
- Supply Voltage Range: 120 volts
- Operating Temperature: 14 to 140 F
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Supplier: Win Source Electronics
Description: Win Source Part Number: 1272385-SE-701-03 Category: Industrial Automation and Controls>Protection Relays & Systems Series: SE-701 Termination Style: Screw Terminal Features: CT Loop Monitoring, Harmonic Filtering, Manual Reset, Test Button Package: Bulk Standard Package: 1 Function:
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Description: Superseded by IEEE Std C37.101-2006. Guidance in the application of relays and relaying schemes for protection against stator ground faults on high-impedance grounded generators is provided.
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Description: The guide is intended to assist protection engineers in applying relays and relayingschemes for protection against stator ground faults on various generator grounding schemes. Theexisting guide is outdated due to rapid technology development. Hence, the revised
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Supplier: SOCOMEC
Description: power supply breaking. The relay recloses the system up to six consecutive times after different time intervals. If the fault is still present after the sequence of six reclosing attempts, the relay is locked in alarm mode and a manual intervention will be required. Rapid
- Current Sensing Range: 0.03 to 30 amps
- Frequency Sensing Range: 15 to 400 Hz
- Supply Voltage Range: 250 volts
- Operating Temperature: -4 to 131 F
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Supplier: CARLO GAVAZZI Automation Components
Description: The DEA71 is a modular residual current relay which, in conjunction with the MCB and the CT, provides the protection of people against electrocution, or protection of properties against fire, by interrupting the mains on faulty loads or lines. The setpoint of the leakage current
- Current Sensing Range: 0.03 to 0.3 amps
- Supply Voltage Range: 24 to 240 volts
- Operating Temperature: -25 to 60 F
- Current Trigger Range: 0.03 to 0.3 amps
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Supplier: SOCOMEC
Description: RESYS P40 earth leakage relays associated with a remote trip breaking device (automatic power breaking), provide the following functions: - protection against indirect contact, - limitation of leakage currents. They also preventively monitor electrical installations via their
- Current Sensing Range: 0.03 to 30 amps
- Frequency Sensing Range: 15 to 400 Hz
- Supply Voltage Range: 250 volts
- Operating Temperature: -4 to 131 F
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Supplier: Radwell International
Description: E3 PLUS GROUND FAULT SENSOR,82 MM CORE BALANCED,REQUIRED WHEN USING EITHER AN E1 PLUS GROUND FAULT PROTECTION OR GROUND FAULT-JAMMODULE,REQUIRED FOR GROUND FAULT PROTECTION WITH 193-EC3 AND -EC5 OVERLOAD RELAYS,FOR USE WITH
- Standard Rating: IEC Rated
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Supplier: Radwell International
Description: OVERLOAD RELAY, ELECTRONIC OVERLOAD RELAY, 1.0 - 5.0A ADJUSTABLE, SOLID STATE, GROUND FAULT PROTECTION, STAND-ALONE POWER CONNECTION(S), DIN RAIL OR PANEL MOUNT. FOR USE WITH ANY CONTACTOR.. FREE 2 YEAR RADWELL WARRANTY
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Supplier: Allied Electronics, Inc.
Description: Applications requiring protection at operating voltage levels as low as 11 volts and as high as 1100 volts with energies rated up to 15000 joules, depending on the device selected. Typical Protection Applications: Protection of Semiconductors (Diodes, Transistors, Thyristors,
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Supplier: Chromalox
Description: Automatic Control for Heat Tracing and Freeze Protection Integrated Electronic Controller with Backlit LCD Display Adjustable Temperature Setpoint User Friendly Interface Multiple Sensors Input – Optional Up to 30A & 120/208/240V Outputs to the Heaters Load 30mA Integrated Ground
- Length: 12 inch
- Width: 8 inch
- Current: 30 amps
- Voltage: 120 to 240 volts
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Supplier: Chromalox
Description: Standard NEMA 4 Enclosures NEMA 4X Stainless Steel Enclosure Option Hand/Off/Auto Selector Switch 15, 25, 30, and 40 Amp Single-pole and Double-pole 30 mA Ground Fault Thermal-Magnetic Circuit Breakers See Catalog Page PDF for more information
- Notification Appliance Circuits (NACs): 0
- Length: 10 inch
- Width: 36 inch
- Current: 100 to 225 amps
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Supplier: Radwell International
Description: DISCONTINUED BY MANUFACTURER, GROUND FAULT PROTECTION, 8AMP RELAY, 24-250V AC/DC. FREE 2 YEAR RADWELL WARRANTY
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Supplier: WorldWide Electric Corporation
Description: restarting the motor when it is hot) Ground fault protection - trips 60% of motor current Ambient insensitive (prevents nuisance tripping) FLA dial with wide adjustment range - 4:1 ratio One NO and one NC contacts standard Self-powered - no separate source required Self
- Full Load Current Range: 3 to 12 amps
- Motor / Load Phase: Single Phase Protection
- Overload Relay Type: Solid State Overload Relay
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Supplier: Allied Electronics, Inc.
Description: Applications requiring protection at operating voltage levels as low as 11 volts and as high as 1100 volts with energies rated up to 15000 joules, depending on the device selected. Typical Protection Applications: Protection of Semiconductors (Diodes, Transistors, Thyristors,
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Supplier: Allied Electronics, Inc.
Description: Applications requiring protection at operating voltage levels as low as 11 volts and as high as 1100 volts with energies rated up to 15000 joules, depending on the device selected. Typical Protection Applications: Protection of Semiconductors (Diodes, Transistors, Thyristors,
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Supplier: Allied Electronics, Inc.
Description: Applications requiring protection at operating voltage levels as low as 11 volts and as high as 1100 volts with energies rated up to 15000 joules, depending on the device selected. Typical Protection Applications: Protection of Semiconductors (Diodes, Transistors, Thyristors,
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Supplier: Win Source Electronics
Description: Manufacturer: TE Connectivity Potter & Brumfield Relays Win Source Part Number: 1280125-W58-XB1A4A-15 Mounting Style: Panel Mount Voltage Rating - AC: 250V Voltage Rating - DC: 50V Actuator Type: Push to Reset Number of Poles: 1 Breaker Type: Thermal Categories: Circuit Protection
- Supply Voltage (VS): 50 volts
- Features: Other
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Supplier: UL Standards & Engagement
Description: capability of the switch. b) Switches for use with Class II ground-fault sensing and relaying equipment are capable of interrupting 10 times their rated current and are for use in ground-fault protection systems in which means to prevent disconnecting at levels of
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Supplier: ValueTronics International, Inc.
Description: Associated Research, Quadtech, Instek, and Slaughter. Additional Features: 20kV DC withstand voltage test 0.1MΩ~50GΩ insulation impedance test BDV (BreakDown Voltage test) HVCC (High Voltage Contact Check) HFCC (High Frequency Contact Check) OSC (Open Short Check) GFI (Ground Fault
- Types of Measurements: AC/DC Selectable, Insulation Resistance
- Features: Current Leakage Tester, Ground Bond Testers
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Supplier: CSA Group
Description: capability of the switch. b) Switches for use with Class II ground-fault sensing and relaying equipment are capable of interrupting 10 times their rated current and are for use in ground-fault protection systems in which means to prevent disconnecting at levels of
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Featured Products Top
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Altech is pleased to offer a variety of protection relays covering: Phase Monitoring Voltage Monitoring Current Monitoring Frequency Monitoring Current Leakage / Ground Fault Monitoring Protection relays help to maintain (read more)
Browse Protective Relays and Monitoring Relays Datasheets for Altech Corp. -
Finder solutions for the industrial sector are composed of a large number of specific products and accessories, among these, approved equipment for control panel like heaters and fans with filters.
Finder’s components and accessories for control panels facilitate the work of panel builders while ensuring the highest safety levels, demonstrated by the great number of internat...
(read more)
Browse Solid State Relays Datasheets for Finder S.p.A. con unico socio -
What is the HF note? As the NEC now requires Ground Fault protection for a larger scope of applications & higher rated circuits in the recent Code cycles, high frequency during start up (read more)
Browse Ground Fault Circuit Interrupters (GFCI) Datasheets for Tecmark Corporation -
2026 Code Year: NEC 680 Lets dive into the Ground Fault Protection requirements of the Leisure Water industry. Read about what NEC 680 mandates for pools, spas, fountains, and more (read more)
Browse Ground Fault Circuit Interrupters (GFCI) Datasheets for Tecmark Corporation -
devices. The arcing that can occur when relays are operating is one source of ignition risk. Industry standards help ensure enhanced protection from ignition risk, including the HAZLOC (hazardous location) standard in the US and (read more)
Browse Electromechanical Relays Datasheets for FCL Components America -
switching performance even under frequent cycling, high inrush currents, and varying temperatures. FCL relays provide key benefits such as noise suppression, long operational life, and robust isolation—ensuring reliable operation and protection for sensitive control electronics in demanding environments. (read more)
Browse Electromechanical Relays Datasheets for FCL Components America -
Altech Monitoring Relays are designed for dependable electrical system monitoring in industrial environments. The line includes compact DIN rail-mounted models for voltage, current, phase, and energy monitoring, helping support protection, alarm signaling, and control (read more)
Browse Electromechanical Relays Datasheets for Altech Corp. -
Type 40.52 miniature relay 1 CO 8 A, 5.0 mm pin pitch for printed circuit boards, and plug-in with the 95 Series sockets. Features include: Pin length 3.5 mm for PCB mounting Pin length 5.3 mm for plug-in relays DC coil (650 mW or 500 m (read more)
Browse Electromechanical Relays Datasheets for Finder S.p.A. con unico socio -
40.52 miniature relay 1 CO 8 A, 5.0 mm pin pitch for printed circuit boards, and plug-in with the 95 Series sockets (read more)
Browse Electromechanical Relays Datasheets for Finder S.p.A. con unico socio -
and efficient, they save space compared to multiple proximity sensors and provide stable, reliable performance. Built with oil-resistant cables and IP67-rated protection, the LPD Series is ideal for harsh environments such as machine tools and industrial automation. Available with analog (read more)
Browse Electromechanical Relays Datasheets for New Yorker Electronics Co., Inc.
Conduct Research Top
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Guide to Overload Protection Relays
Electric motors see wide usage in machines with rotating components. Motors are often quite expensive, so it is important to prevent them from failure caused by carrying more electric current than their rated amperage. Electrical overload can sometimes develop from ground faults (short-circuits
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IEEE Recommended Practice for Protection and Coordination of Industrial and Commercial Power Systems
Ground Fault Protection ( Relay Coil Connected in Residual CT Circuit) T .
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Evaluation of sympathetic nuisance tripping involving instantaneous ground fault relays and general considerations for ground fault protection of industrial po...
Another option is to move the ground fault protective relay for a feeder from the ground sensor current transformer to the residual neutral of the phase current transformers.
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High-Resistance Grounded power system equivalent circuit damage at the line-ground fault location (Part 2)
The damage at the fault location is based upon the assumption that the fault remains a line-ground fault untiI it is c1eared by appropriate ground fault protection relays .
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Ground fault protection for ineffectively earthed power systems
A. ThePrinciple of GroundingFat& Fuzzy Identifeution The output result of the single ground fault protective relay is either fault or no fault.
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Some ground fault protection schemes implemented on FTU for industrial power systems
The output result of the single ground fault protective relay is either fault or no fault.
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Application of a hybrid grounding scheme to a paper mill 13.8 kv generator
Fig. 3 Luke Mill Ground Fault Protective Relay One-Line Diagram .
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Protective relaying for multi-source generator buses
FEEDERGROUNDFAULTPROTECTION Ground fault protective relays applied to the primary distribution feeder circuit breaker are usually of the residually connected (device 50N or 51N) or ground sensor (50GS or 51GS) type.
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Protection technique based on /spl Delta/-zero sequence voltages for generator stator ground fault
This paper proposes a high sensitivity approach to detect the ground fault in the 100% generator stator winding, which is termed D- ground fault protective relaying .
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Shore-To-Ship Power Supply System for a Cruise Ship
As shown in Fig. 2, for proper protection and quick identification of the fault location, each feeder circuit used phase and residual neutral ground fault protection relays , devices 50/51 and 50/51N, designated by R2.
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Application of the continuous wavelet transform to intermittent high impedance ground fault detection in MV networks
Applied nowadays ground fault protection relays based on measurement of zero sequence current 31, and voltage 3U, components of fundamental .