Industry

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  1X50 CB Trip & Close Module

  The 1X50 Trip & Close Module has been designed to provide a cost effective & feature rich solution for the manual control & indication of CB status. The panel or rack mount configuration allows the compact 1X50 to be located on the protection panel adjacent to the overcurrent feeder relay. 22mm heavy duty push buttons are employed for the CB Trip & Close functions while two LED’s are employed for…
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  2C138 Sensitive Earth Fault Relay

  The main earth fault protection relays in distributions systems, power stations & large manufacturing / processing plants can fail to detect a high impedance break down to earth causing hazard to human life & potential damage to plant & equipment. In these & other situations demanding extra sensitive earth fault protection, the 2C138 relay using solid state techniques, can be applied to detect earth currents down to 0.5 % of…
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  2C139 Shaft Overcurrent Protection Relay

  Features High sensitivity (0.1% of In) Tuned to 150 Hz or 180 Hz Fundamental & HF noise suppression Optional reset functions Instantaneous (Fast), definite time, count down 40-300V DC auxiliary supply Power supply fail relay drops out if the auxiliary supply fails. Optional 20-70V DC supply Low CT burden & high thermal rating Optional 1A or 5A CT input Instantaneous pick up LED Configurable output contacts 0-31s time delay (125ms…
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  2C63 Definite Time Current Check Relay

  The 2C63 Series relays are adjustable AC current sensing relays designed for high or low voltage power systems where they can be used in a large number of vercurrent applications. Definite time overcurrent relays offer advantages over inverse time protection in power systems which have a wide variation in source impedance. Faults can be cleared in relatively short times irrespective of the magnitude of the fault current, & coordination of…
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  2C65 Current Check Relay

  The 2C65 Series relays are adjustable AC current sensing relays designed for high or low voltage power systems where they can be used in a large number of overcurrent applications. The 2C65 Series relay is a three pole current detector with independently adjustable sensing circuits driving a common adjustable digital setting timing element. Five (5) status inputs & eight (8) relay outputs are provided as standard to allow the 2C65…
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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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  2D Bluetooth Barcode scanner

  2D Bluetooth Barcode Scanner for fast and error-free communication with Nieaf-Smitt device testers. General: Bluetooth 2D Barcode scanner for fast and error-free device identification. The barcode scanner wirelessly connects to your measuring device via Bluetooth and quickly and easily scans the desired barcode, creating a considerable time saving. The 2D scanner is suitable for scanning Code 39, 93, 128 and Various 2D barcodes such as Datamatrix. With the PATManager software…
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  2D-BZ adapter

  The 2D-BZ adapter has been designed to replace the widely installed P8 relays without having to change your installation. (more…)
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  2H34-S Four Stage Frequency Relay

  The 2H34-S Series relay is a frequency monitoring relay with four stages of adjustable frequency pick up & drop out points. Each frequency set point can be set for under or over frequency operation & has an independent time delay driving an output relay. An undervoltage lockout is used to disable the four frequency outputs when the voltage falls below a preset level. Each of the four setting stages has…
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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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  2L10 / 2L11 Battery Earth Fault Relays

  Features Wide range of battery voltages catered for High sensitivity 2L11 model differentiates between positive & negative earth faults Low burden Fast operate time High output contact rating with optional magnetic arc blowouts Optional hand reset flag Size 2M draw out case Application Sub-station battery supplies are critical to the correct operation of critical protection & other functions. The 2L10 & 2L11 are designed to operate on earth faults or…
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  2P48 Potential Selecting Relay

  The 2P48 relay is a phase failure relay suitable for 3 phase supplies. The relay is designed to automatically change over from the primary supply to the secondary supply if any phase of the primary supply has faulted. The 2P48 output relay is normally energised and drops out if the phase angle unbalance is greater than the pre-set, an under voltage or reverse phase sequence condition exists. A front panel…