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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
- Current Type: AC Current
- Frequency Range: 400 Hz
- Input Voltage: 100 to 130 volts
- Measuring Range: 1 to 5 amps
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Supplier: Time Mark Corporation
Description: The Model 274 3-Phase Current Monitor is designed to monitor all legs of a 3-phase line, and can also be used to monitor three individual single-phase lines. The output relay will energize on an over-current condition on
- Current Type: AC Current
- Frequency Range: 50 to 400 Hz
- Input Voltage: 100 to 130 volts
- Measuring Range: 1 to 5 amps
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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
- Current Type: AC Current
- Frequency Range: 400000 Hz
- Input Voltage: 190 to 250 volts
- Measuring Range: 1 to 5 amps
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Supplier: Time Mark Corporation
Description: an internal relay, in a fail-safe configuration, i. e. , the relay is energized when correct voltage and phase rotation are applied. Operating power for the Model 265 is drawn from the 3-phase lines being monitored. An adjustable timer delays restarting of
- Features: Automatic Reset, Visual Indicator
- Frequency Sensing Range: Up to 60 Hz
- Operating Temperature: -20 to 131 F
- Phase Failure (Loss): Yes
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Supplier: Littelfuse, Inc.
Description: The CP-5 is an undercurrent monitor designed to monitor one leg of a 3-phase system. It is commonly used as a tower monitor on center pivot irrigation systems to detect stalled or jammed towers to prevent over watering. The CP-5 has both an adjustable trip level
- Input Voltage: 480 volts
- Mounting / Configuration: Other
- Output Type: Switch
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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: CARLO GAVAZZI Automation Components
Description: . Optional feature on the 3-phase RGC series that enables 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.
- Application Type: General Application Relay
- Features: Built-in Heat Sink
- Load Voltage: 42 to 600 volts
- Maximum Current: 85 amps
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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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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: Littelfuse, Inc.
Description: The CP-5 is an undercurrent monitor designed to monitor one leg of a 3-phase system. It is commonly used as a tower monitor on center pivot irrigation systems to detect stalled or jammed towers to prevent over watering. The CP-5 has both an adjustable trip level
- Input Voltage: 115 volts
- Mounting / Configuration: Other
- Output Type: Switch
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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
- Operating Temperature: -13 to 140 F
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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: Littelfuse, Inc.
Description: ) with 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
- Mounting / Configuration: Other
- Operating Temperature: -4 to 158 F
- Output Type: Switch
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Supplier: Littelfuse, Inc.
Description: ) with 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
- Mounting / Configuration: Other
- Operating Temperature: -4 to 158 F
- Output Type: Switch
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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: CARLO GAVAZZI Automation Components
Description: This series gives the possibility to control output power of 3- phase loads with an analog control input. The RGC2P is a 2- phase switching product whilst the RGC3P switches all 3 phases. Input types cover a wide range of current and voltage ranges.
- Application Type: General Application Relay
- Dropout Voltage: 4 volts
- Features: Built-in Heat Sink
- Input (Pick-up) Voltage Range: 4 to 10 volts
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Supplier: GE Grid Solutions
Description: -up protection functions IEC 61850 or DNP3 Ethernet station bus communication Transmitted time-tagged signals are phase currents, voltages, their derivatives, frequency, rate of change of frequency plus binary signals Overall differentiation factors:
- Data Interfaces: Ethernet
- Electrical Parameters: AC Voltage, AC Current, Frequency
- Phase: Three-Phase
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Supplier: TE Connectivity
Description: Type Features Phase : Three Protection Function : Phase Sequence Termination Features Relay Connection Type : Terminals Terminal Configuration : Screw Terminals
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Supplier: TE Connectivity
Description: Product Type Features Phase : Three Protection Function : Reverse Power Relay Options : Time Delay Termination Features Relay Connection Type
- Operating Temperature: -4 to 158 F
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Supplier: TE Connectivity
Description: Characteristics Actuating System : AC Input Voltage (VAC) : 120 Product Type Features Phase : Single Protection Function : Overfrequency Relay
- Operating Temperature: -4 to 149 F
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Supplier: TE Connectivity
Description: Holes Product Type Features Phase : Single Protection Function : Overvoltage Relay Options : Time Delay Termination Features Relay Connection Type : Terminals Terminal Configuration : Screw Terminals
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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: SMC International
Description: optional software. CHARACTERISTICS - Complete Three phase system supplied in 2 units (PTE-300-V/PTE-50-CE T). - 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
- Features: Application Software, Auto-Ranging, Computer Interface
- Form Factor: Mobile Unit
- Number of outputs: 6
- Phase: Three Phase
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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: SMC International
Description: transient tests with a bandwidth of 0.5 to 5000 Hz. - Completely programmable from a computer. - Close Case Calibration. - Built-in timer with reading in seconds or cycles. - 3 independent monitors. - External phase and frequency reference. - Case: IP-65. - Portable.
- Features: Application Software, Auto-Ranging, Computer Interface
- Form Factor: Mobile Unit
- Number of outputs: 2
- Phase: Single Phase
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Supplier: CARLO GAVAZZI Automation Components
Description: the market. To keep the dimensions compact, the existing RGC3 solutions at higher current ratings (above 40 AAC) utilize forced ventilation and hence require a supply voltage. The new 48 AAC rated 3-phase relay uses a larger, natural convection heat sink that
- Frequency Sensing Range: 45 to 65 Hz
- Operating Temperature: -40 to 176 F
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Supplier: Schneider Electric, Automation & Control
Description: functions: - Overcurrents due to overload or mechanical jamming: starting and steady state operation overtorque monitoring - Can be used as torque surge protection - Specific protection for locked rotor - Specific protection for phase failure. Current threshold adjustment using
- Features: Automatic Reset, Phase Failure (Loss)?
- Full Load Current Range: 0.3000 to 1.5 amps
- Operating Temperature: -13 to 140 F
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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
- Features: Visual Indicator
- Over-current Protection: Yes
- Over-voltage Protection: Yes
- Phase Failure (Loss): Yes
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Supplier: Weidmuller
Description: Namur 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
- Analog Input Channels: 5 #
- Application: General Lab and Industrial
- Form Factor: DIN Rail
- Isolation: Isolated Analog Voltage Input
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Supplier: CARLO GAVAZZI Automation Components
Description: host control 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
- AC Motor Phase: Three Phase Motor
- Continuous Current: 12 to 95 amps
- Motor Voltage: 220 to 400 volts
- Operating Temperature: -4 to 140 F
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Supplier: RS Components, Ltd.
Description: Electronic voltage/phase loss and rotation monitoring relays for single and three-phase applications. Monitoring Application = Voltage Supply Voltage = 380 - 415 V Contact Configuration = SPDT Voltage Sensitivity = Overvoltage, Undervoltage Electrical Phase
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Supplier: OMRON Automation and Safety
Description: the front 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: 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
- Input Current Range: 0.0 to 0.0055 amps
- Input Voltage Range: 0.0 to 330 volts
- Input Voltage Type: AC
- Mounting: Other
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Supplier: MCG SURGE PROTECTION
Description: Features: 200,000 amps per phase, 8x20 us. Date & time of last event it handled/diverted displayed. Independent lab tested modules. UL1449 3rd Edition NEMA LS 1 Redundant modular protection withstands multiple lightning strikes
- 3-Phase Configuration: Delta
- AC Energy Absorption: 33600 joules
- Features: Audible Alarm, Integral Disconnect, NEMA Enclosure, NC/NO Dry Contacts, Remote Alarm Contacts, Self-Diagnostics, Surge Counter, Visual Indicators / LEDs
- Maximum Surge Current: 200000 amps
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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…