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Supplier: ABB Inc.
Description: Single-phase Monitoring Relays Voltage and current measuring For the monitoring of currents and voltages in single-phase AC/DC systems, ABB's CM range contains a wide selection of powerful and compact devices all in an only 22.5 mm wide housing. This
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Supplier: Time Mark Corporation
Description: The Model 2744 3-Phase Over Current Monitor is designed to monitor the current level of a three-phase line or to compare the currents of three single-phase lines. If one or more current inputs rises above the trip level after the start delay
- Measuring Range: 1 to 5 amps
- Input Voltage: 190 to 250 volts
- Frequency Range: 400,000 Hz
- Operating Temperature: -20 to 131 F
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Supplier: Time Mark Corporation
Description: The Model 2742 3-Phase Over/Under Current Monitor is designed to monitor the current level of a 3-phase line or to compare the currents of three single-phase lines. The Model 2742 is factory-set as an over-current monitor; that is, if
- Measuring Range: 1 to 5 amps
- Input Voltage: 100 to 130 volts
- Frequency Range: 400 Hz
- Operating Temperature: -20 to 131 F
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Supplier: Time Mark Corporation
Description: The Model 265 3-Phase Monitor continuously monitors 3-phase Wye or Delta systems for phase loss, low voltage and phase reversal. When properly adjusted, the Model 265 Monitor will detect phase loss on a loaded motor even when regenerated voltage is
- Voltage Sensing Range: 450 to 575 volts
- Frequency Sensing Range: 60 Hz
- Supply Voltage Range: 575 volts
- Operating Temperature: -20 to 131 F
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Supplier: Littelfuse, Inc.
Description: When the current is sensed, the Model CP-5 activates its output relay, thus starting the motor/pump. When the current in the monitored power line falls below the userselectable trip point, the unit goes through a trip delay timer and then deactivates the output relay if
- Input Voltage: 115 volts
- Features: Other
- Electrical Output: Switch
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Protective Relays and Monitoring Relays - Multitek AC Voltage Relay 3 Phase Over Current -- M200-A3OSupplier: Panel Components & Systems, Inc.
Description: The M200 AC current relays provide current monitoring and protection in both single and 3 phase systems. Used in applications such as motor protection, load detection and generator control. Under over and combined under/over units are available. The
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Supplier: Panel Components & Systems, Inc.
Description: The M200 AC current relays provide current monitoring and protection in both single and 3 phase systems. Used in applications such as motor protection, load detection and generator control. Under over and combined under/over units are available. The
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Supplier: Panel Components & Systems, Inc.
Description: The M200 AC current relays provide current monitoring and protection in both single and 3 phase systems. Used in applications such as motor protection, load detection and generator control. Under over and combined under/over units are available. The
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Supplier: Panel Components & Systems, Inc.
Description: The M200 AC current relays provide current monitoring and protection in both single and 3 phase systems. Used in applications such as motor protection, load detection and generator control. Under over and combined under/over units are available. The
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Supplier: Time Mark Corporation
Description: The Model 272 3-Phase Current Unbalance Detector monitors 3-phase lines to detect an unbalanced current. It can also monitor three separate single phase lines for equal current levels. The percentage of unbalance is adjusted from 2% to 25% by
- Measuring Range: 1 to 5 amps
- Input Voltage: 120 volts
- Frequency Range: 400 Hz
- Operating Temperature: -20 to 131 F
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Supplier: Automation24, Inc.
Description: The SIRIUS monitoring relay3RR21411AA30 from Siemens can be mounted to Contactor 3RT2, Size S0 standard, digitally adjustable Apparant/active current monitoring 1.6...16 A, 20...400 Hz, 2-phase Supply 24 V AC/DC 1 change-over contact,Monitoring for Current
- Operating Temperature: -13 to 140 F
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Supplier: Littelfuse, Inc.
Description: Form C (SPDT) relay contacts to switch alarm circuits, contactors or any resistive or inductive load. One simple screwdriver adjustment will calibrate the sensor for all single-phase or 3-phase applications up to 100hp.
- Input Voltage: 115 volts
- Operating Temperature: -4 to 158 F
- Features: Other
- Electrical Output: Switch
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Supplier: Littelfuse, Inc.
Description: Form C (SPDT) relay contacts to switch alarm circuits, contactors or any resistive or inductive load. One simple screwdriver adjustment will calibrate the sensor for all single-phase or 3-phase applications up to 100hp.
- Input Voltage: 230 volts
- Operating Temperature: -4 to 158 F
- Features: Other
- Electrical Output: Switch
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Supplier: Littelfuse, Inc.
Description: When the current is sensed, the Model CP-5 activates its output relay, thus starting the motor/pump. When the current in the monitored power line falls below the userselectable trip point, the unit goes through a trip delay timer and then deactivates the output relay if
- Input Voltage: 480 volts
- Features: Other
- Electrical Output: Switch
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Supplier: CARLO GAVAZZI Automation Components
Description: detection of mains loss, over temperature and solid state relay or load malfunction. Accommodates UL508A requirements for Industrial Control Panels. The RGC 3-phase range is certified as a listed product. All models carry a 100kArms Short Circuit Current Rating.
- Maximum Current: 85 amps
- Load Voltage: 42 to 600 volts
- Operating Temperature: -40 to 176 F
- Dielectric Strength (Isolation Voltage): 1 kilovolts
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Supplier: Allied Electronics, Inc.
Description: Current Monitor Relays monitor AC single-phase currents for over or under current conditions. A separate 120 VAC input (supply) voltage is required to power these units. Three current ranges are available: 0.1-1 A; 0.5-5 A; and 1-10 A. An external
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Supplier: Quarktwin Technology Ltd.
Description: CURRENT PROTECTION RELAY 3-PHASE
- Operating Temperature: 14 to 131 F
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Supplier: Powell Electronics, Inc.
Description: Monitoring Relay, Current, 3 Phase, 5A
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Supplier: TE Connectivity
Description: Contact Features Contact Arrangement : 1 N.C & 1 N.O Contact Arrangement (Additional Output) : 1 Form B, SPST-NC, 1 N/C Contact Current Rating (AMP) : 5 Dimensions Product Height : 88.9 MM [3.5 INCH ] Product Length : 114.3 MM [4.5 INCH ] Product Width : 114.3 MM [4.5
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Supplier: Radwell International
Description: RELAY, 3PHASE, CURRENT OVER CURRENT MONITOR, 600V MAX, 50/60HZ, 120VAC CONTROL VOLTAGE. FREE 2 YEAR RADWELL WARRANTY
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Supplier: GE Grid Solutions
Description: A key component of wide area monitoring, protection and control systems (WAMPACs) Applications include: state estimation, situational awareness, stability monitoring, forensic analysis, network resynchronisation Available in 3 CT/3 VT or 12 CT/3 VT configurations
- Data Scan Rate: 60 frames per second
- Electrical Parameters: AC Current, AC Voltage, Frequency
- Data Interfaces: Ethernet
- Phase: Three-Phase
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Supplier: Radwell International
Description: CURRENT MONITOR / RELAY, CLB SERIES, CURRENT UNBALANCE / OVER CURRENT, 3 PHASE, SUPPLY 120VAC 50/60HZ, INPUT 2-10AMP ADJUSTABLE, OUTPUT 10AMP SPDT @ 240VAC RESISTIVE. FREE 2 YEAR RADWELL WARRANTY
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Supplier: Weidmuller
Description: frequencies or 2/3-NPN/PNP transmitters. The signal curves from any type of sensor can be saved and linearised internally. Standardised DC current/voltage signals are available on the output side. Limit values can be monitored via additional switching outputs (relay/transistor).
- Analog Input Channels: 5 #
- Maximum Output: 250 volts
- Operating Temperature: 0 to 50 F
- Features: AC Voltage Input, Isolated Analog Voltage Input
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Supplier: CARLO GAVAZZI Automation Components
Description: system. Soft starting of 3-phase Scroll Compressors up to 95 Amp Patented auto-adaptive algorithm for optimum inrush current reduction (No user-settings required) Integrated bypass relays 2- (RSBD) and 3-phase (RSBT) controlled solutions Multi-voltage
- Continuous Current: 12 to 95 amps
- Motor Voltage: 220 to 400 volts
- Operating Temperature: -4 to 140 F
- Features: AC Motor Starter
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Supplier: Solcon Solutions LLC
Description: Medium Voltage Control supply voltage:110V - 230V - 110-230V AC/DC Separate AUX19-60 VDC The MPS-3000 delivers a complete motor protection and control package. Monitoring 3-phase currents and voltage together with 10 RTD/Thermistor temperature inputs makes it an ideal
- Supply Voltage Range: 110 to 230 volts
- Current Sensitive Relay: Over-current Protection, Undercurrent
- Voltage Sensitive Relay: Over-voltage Protection, Undervoltage
- Power (Phase) Sensing: Phase Failure (Loss), Phase Sequence
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Supplier: OMRON Automation and Safety
Description: panel. Precise heater burnout detection Phase control or optimum cycle control RS-485 communications to set manipulated variables and monitor load current Total runtime monitoring Application with various loads: constant load resistance, variable load resistance
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Supplier: Beckhoff Automation LLC
Description: The power supply PS3031-4810-0001 is a 3-phase, 48 V DC power supply with an output current of 10 A and an output power of 480 W. On the input side, the device has a wide range input, an active power factor correction (PFC) and an inrush current surge regulation. The
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Supplier: Beckhoff Automation LLC
Description: The power supply PS3031-2440-0000 is a 3-phase, 24 V DC power supply with an output current of 40 A and an output power of 960/1440 W. On the input side, the device has a wide range input, an active power factor correction (PFC) and an inrush current surge regulation. The
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Supplier: SMC International
Description: CHARACTERISTICS - Complete Three phase system supplied in 2 units (PTE-300-V/PTE-50-CET). - Reversible Outputs (Up to 6 current and 6 Voltage Outputs). - Three phase current output 3 x 50A or 3 x 150V. - Three phase voltage output 3 x 300V or
- Testing Voltage Range: 300 to 900 volts
- Testing Current Range: 8 to 50 amps
- Number of outputs: 6
- Test Variable: AC
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Supplier: Schneider Electric, Automation & Control
Description: Selection of 3-phase or single-phase operation Diagnostics via 2 LED indicators (starting, overtorque, rotor locked and phase failure) Auxiliary contact: 1 C/O. Benefits Machine protection combined with motor starter With its simple setting and signalling features, the
- Full Load Current Range: 0.3 to 1.5 amps
- Operating Temperature: -13 to 140 F
- Features: Automatic Reset, Phase Failure (Loss)
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Supplier: Opto 22
Description: This data sheet describes the SNAP-AIPM, SNAP-AIPM-3, and SNAP-AIPM-3V analog input modules. These modules monitor AC voltage and current through a SNAP PAC rack-mounted controller or SNAP PAC brain. The SNAP-AIPM monitors single-phase AC. The SNAP-AIPM-3 and SNAP-AIPM-3V
- Number of Channels: 14
- Input Voltage Range: 0 to 330 volts
- Input Current Range: 0 to 0.0055 amps
- Output Voltage: 0 to 1,500 volts
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Supplier: CARLO GAVAZZI Automation Components
Description: CARLO GAVAZZI is proud to announce the launch of the newest addition to its RGC Series Solid State Contactor platform. These single-phase zero-crossing relays, featuring an integral heat sink, offer the best in the class current rating of up to 37AAC at 40°C or 43AAC at 25°C.
- Operating Temperature: -40 to 176 F
- Frequency Sensing Range: 45 to 65 Hz
- Features: Built-in Heat Sink, DC, DIN Rail
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Supplier: Wayne Kerr Electronics
Description: for IEC 61000-3-3/JIS C 61000-3-2 The impedance value is guaranteed at the value given by the combination of ES series and this unit. The errors caused by impedance switching relays or current detecting resistor are corrected with feedback. Equipped with
- Phase: Single Phase, Three Phase
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Supplier: Sensata Technologies
Description: Features 3-phase motors reversing up to 4 kW 2-phase soft start/stop 4 dials for setting of starting torque, deceleration torque, soft start/stop, and rated motor current 4 LEDs for status indication Galvanic separated 24 VDC inputs for forward and reverse control Reset
- Three Phase Power: 0.0335055096225705 to 5.36088153961128 HP
- Control Voltage (Separate Control): 10 to 30 volts
- Operating Temperature: 32 to 140 F
- Starter Type: Reversing
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New ESS 076 three-phase current sensor monitors energy consumption With the new three-phase version of the Smart Sensor Current ESS 076, STEGO expands its sensor portfolio for (read more)
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Current Relays: Available for 1-phase and 3-phase current monitoring, with 2 x DPDT outputs and compact 22.5 mm industrial housings. Voltage Relays: Monitor 1-phase and 3-phase voltage conditions, with multifunction options, compact housing designs, and (read more)
Browse Electromechanical Relays Datasheets for Altech Corp. -
Classic GNR3 relay, and a panel mount Reverse GN0 relay. Both the GN3 and the GR3 are for use where there’s frequent start/stop operations of three-phase motors or heaters. The GN0 relay is for frequent start/stop/reverse operation of three-phase motors and includes an interlock feature that allows (read more)
Browse Solid State Relays Datasheets for Heilind Electronics, Inc. -
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Browse Protective Relays and Monitoring Relays Datasheets for Altech Corp. -
circuits for emergency calls, battery controller applications including battery monitoring, abnormal detection of over-voltage and over-current, and low/high leakage detection. FTR-B3/FTR-B4/FTR-C1 series relays are manufactured at a certified factory in compliance with IATF16949, an international standard for automotive management systems. They are UL and CSA recognized and RoHS compliant. (read more)
Browse Electromechanical Relays Datasheets for FCL Components America -
instruments, protective relays, and control circuits. This is achieved by developing a current in the secondary winding that is proportional to that of the primary. The isolation aspect of the transformer keeps the high voltage of the primary system separate from the instrument, safety circuit, or (read more)
Browse Current Sense Transformers Datasheets for Triad Magnetics -
TPS-ESB-01-16A 16A AC-Inrush Current Limiter The TPS-ESB-01-16A is a robust 16A active inrush current limiter engineered for 230VAC single-phase systems, providing superior inrush current limiting for a wide range of demanding applications. This advanced IC current (read more)
Browse Surge Protective Devices (SPDs) Datasheets for TPS Elektronik GmbH -
nominal and overcurrent measurements in a compact, all-in-one solution, monitoring up to 11x the rated current in systems up to 3.6 kV. Built to monitor both regular supply current and sudden overcurrent events, the P41000AG adaptive gain transducer eliminates the need for multiple signal (read more)
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power quality, monitoring energy consumption, determining machine health, and other powerful data analyses into simple operations.” The DIN-rail mounted enclosures have pluggable terminal blocks for phase voltage and phase current which simplifies setup and maintenance; the small (read more)
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operation. For output voltage monitoring, a front panel LED indicator and a DC OK relay contact are available. Remote on/off is possible using a closed relay contact or <4V input. All units are enclosed in a compact, rugged metal case measuring 55mm wide, 129mm high and 138.2mm deep (read more)
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T2000 Series - Single Function Relays Protection Relays from Protection Relays and Controls - Littelfuse
The T2900 3 - Phase Differential Current Relay is designed for monitoring current leakage in generator...
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T3200 Series - Single Function Relays Protection Relays from Protection Relays and Controls - Littelfuse
The T2900 3 - Phase Differential Current Relay is designed for monitoring current leakage in generator...
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T2900.0030 - T2900 Series - Single Function Relays Protection Relays from Protection Relays and Controls - Littelfuse
The T2900 3 - Phase Differential Current Relay is designed for monitoring current leakage in generators.
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520CP-115-5 - Symcom - Motor Protection Relay | Galco Industrial Electronics
520CP-115-5, Symcom, Motor Protection Relay , FULLY PROGRAMMABLE, 3 - PHASE CURRENT MONITOR , 115VAC, W/DOUBLE POLE DOUBLE THROW RELAYS .
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FULLY PROGRAMMABLE, 3 - PHASE CURRENT MONITOR , 460VAC, W/DOUBLE POLE DOUBLE THROW RELAYS .
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Overload Protection of Motors---Four Common Questions
However, phase 2 will carry more current than phase 1 (exceeding phase 1 by the current drawn by the single- phase motor through phase 3 ) and should be monitored by an overload relay .
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The Dechlorination of Polychlorinated Biphenyls by Sodium Hydride and Alkylamine
…test new protection schemes Several units of a digital fault recorder ("DFR") have been built to stand in EHV substation relaying houses and monitor EHV lines They have … 8 analog input channels ( 3 phase voltages, 3 phase currents and the zero-sequence…
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Field Experience of Digital Fault Recorders and Distance Relay in EHV Substations
…test new protection schemes Several units of a digital fault recorder ("DFR") have been built to stand in EHV substation relaying houses and monitor EHV lines They have … 8 analog input channels ( 3 phase voltages, 3 phase currents and the zero-sequence…
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Magnetic Starters with Thermal Overload - Starters and Contactors - Grainger Industrial Supply
Most commonly used to safeguard larger 3 - phase motors in industrial applications, heavy-duty motor starters include a contactor that completes the circuit to the motor and an electromagnetic overload relay that monitors the current the motor is drawing.
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Federal Register > Monday, January 26, 2009 > [74 FR 4469] Petitions for Modification
…contactors to provide undervoltage, grounded phase, overload, and monitor the grounding conductors for … power circuits serving three- phase alternating current equipment located in the … not exceed 120 volts; ( 3 ) contactors will be built … contactors with associated protective relays will provide undervoltage protection…