Obsolete Power Utility Products

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  1B230 Auto Reclose Relay

  This product is obsolete. Operating records for overhead power lines reveal that most faults are of a transient nature (e.g. lightning induced) & that service interruptions may be minimized by use of automatic reclosing of circuit breakers. An automatic reclosure of the circuit breaker, after the fault clears, provides improved service continuity & system stability. The 1B230 Series Reclose Relay provides for single or double shot automatic reclosing of circuit…
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  1F701 700 Series Flasher Relay

  This product is obsolete.  Consider the alternative FDA4-U200N relay for your application. Note that the FDA4-U200N is not directly equivalent to the 1F701. The 1F701 Series relays are solid state general purpose flasher relays with electro-mechanical output contacts. Designed for applications wherever a simple continuous cycling time delay is required where the ON and OFF periods are identical. The 700 Series range of electronic measuring relays are manufactured as a modular approach to electrical…
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  1L710 700 Series Liquid Level Relay

  This product is obsolete.  The 1L710 Series relays are solid state liquid level detecting relays with electromechanical output contacts. Designed for application on auxiliary mains voltages the 1L710 provides an isolated low voltage to the liquid immersion probes. Due to the low voltage AC signals applied between electrodes, the effects of damaging electrolytic action is eliminated. The unit is ideally suited for measuring high and/or low levels of conductive liquids…
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  2C720 700 Series AC Current Sensing Relay

  This product is obsolete.  Consider the alternative CMP relay for your application. Note that the CMP is not directly equivalent to the 2C720. The 2C720 Series relays are solid state current sensing relays with electromechanical output contacts. Designed for application on AC current systems the 2C720 is ideally suited to monitor current transformer outputs wherever high accuracy and reliable, maintenance free operation is essential. The 700 Series range of electronic measuring relays are manufactured…
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  2C73 High Impedance Differential Relay

  This product is obsolete. Consider the alternative 2V73 relay for your application. Note that the 2V73 is not directly equivalent to the 2C73. The 2V73 relay provides high speed differential protection for various items of power system plant including generators, busbars, motors & the individual windings of power transformers. The 2V73 is also suitable for restricted earth fault applications. The relay measuring element is basically an attracted armature unit of simple &…
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  2C74 Instantaneous Current Relay

  This product is obsolete. Consider the alternative 2C65 relay for your application. Note that the 2C65 is not directly equivalent to the 2C74. The 2C74 relay provides high speed overcurrent protection for various items of power system plant such as frame earth leakage protection of metal clad switchgear & tank earth fault protection of sub-station power transformers. The 2C74 relay is a single phase device built in a compact size 2M…
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  2C81 DC Current Sensing Relay

  This product is obsolete.  Consider the alternative CU-I/J or DI series relays for your application. Note that these relay series are not directly equivalent to the 2C81. The 2C81 is a DC current measuring relay. The measured input current is derived from a mV drop across a current shunt. A switchmode power supply provides a very wide auxiliary operatingrange. A relay fail alarm is provided in the form of a C/O contact which is picked…
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  2H750 700 Series 50Hz Frequency Sensing Relay

  This product is obsolete. Consider the alternative 2H34-S relay for your application. Note that the 2H34-S is not directly equivalent to the 2H750. The 2H750 and 2H760 Series relays are solid state instantaneous frequency sensing relays with electromechanical output contacts. Designed to monitor 50Hz (2H750) and 60Hz (2H760) AC supply systems these relays operate from the sensed voltage and do not require a separate auxiliary supply. The 700 Series range of electronic…
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  2H760 700 Series 60Hz Frequency Sensing Relay

  This product is obsolete. Consider the alternative 2H34-S relay for your application. Note that the 2H34-S is not directly equivalent to the 2H760. The 2H750 and 2H760 Series relays are solid state instantaneous frequency sensing relays with electromechanical output contacts. Designed to monitor 50Hz (2H750) and 60Hz (2H760) AC supply systems these relays operate from the sensed voltage and do not require a separate auxiliary supply. The 700 Series range of electronic…
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  2T749 700 Series Delay On Timer Relay

  This product is obsolete.  Consider the alternative TDB4 relay for your application. Note that the TDB4 is not directly equivalent to the 2T749. The 2T749 Series relays are solid state general purpose time delay relays with electromechanical output contacts. Designed for application wherever a time delay is required with high accuracy, reliable and maintenance free operation. The 700 Series range of electronic measuring relays are manufactured as a modular approach to electrical system…
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  2T770 700 Series Recycling Timer

  This product is obsolete.  Consider the alternative FDC4-U200N relay for your application. Note that the FDC4-U200N is not directly equivalent to the 2T770. The 2T770 Series relays are solid state general purpose flasher relays with electro-mechanical output contacts. Designed for applications wherever a simple continuous cycling time delay is required. The ON and OFF periods can be ordered with different time ranges. The 700 Series range of electronic measuring relays are manufactured as a…
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  2V63 Single Phase AC/DC Voltage Relay

  This product is obsolete.  Consider the alternative MTDV4 (for DC) or UMD-U300 (for AC) relays for your application. Note that the MTDV4 or UMD-U300 relays are not directly equivalent to the 2V63. The 2V630 / 2V631 series are solid state voltage sensing relays with electromechanical output contacts built in a fully draw out case format. Designed for application on AC & DC voltage systems, these relays are ideally suited to monitor power supply voltage levels wherever high…
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  2V730 700 Series AC Voltage Sensing Relay

  This product is obsolete.  Consider the alternative UMD-U300 relay for your application. Note that the UMD-U300 relay is not directly equivalent to the 2V730. The 2V730 Series relays are solid state voltage sensing relays with electromechanical output contacts. Designed for application on AC voltage systems the 2V730 is ideally suited to monitor power supply voltage levels wherever high accuracy and reliable, maintenance free operation is essential. The 700 Series range of electronic measuring…
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  2V731 700 Series DC Voltage Sensing Relay

  This product is obsolete.  Consider the alternative MTDV4 relay for your application. Note that this relay is not directly equivalent to the 2V731. The 2V731 Series relays are solid state voltage sensing relays with electromechanical output contacts. Designed for application on DC voltage systems the 2V731 is ideally suited to monitor power supply voltage levels wherever high accuracy and reliable, maintenance free operation is essential. The 700 Series range of electronic measuring relays…
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  2V76 Single Phase Voltage Relay

  This product is obsolete. The 2V76 series relay is a single phase protection class AC voltage relay. It may be configured for under or over voltage operation & includes a filter for rejection of third harmonics for neutral displacement applications, which may be switched in or out of circuit. A definite time delay element is included which is initiated by the voltage detection circuit & drives the time delayed output…
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  3A300 Pilot Wire DC Intertrip System

  This product is obsolete. Consider the alternative 3A20 relay for your application. Note that the 3A20 is not directly equivalent to the 3A300. The 3A300 has been designed to integrate a complete scheme allowing bi-directional group intertripping of up to four remotely connected sites. Inherent 5KV or 15KV isolation allows application on electrical networks where large induced voltages may be experienced on the pilots. System reliability is provided by the extensive…