Operator Interfaces, Switches & Relays


Latest Articles

Standards in the substation
November 2008, RJ Connect
Moxa’s full line of PowerTrans Ethernet switches has passed IEC 61850-3 and IEEE 1613 tests performed, which specify environmental and EMI immunity requirements for network equipments used in substations. ...

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Economical LED power series
November 2008
After launching constant voltage mode power supplies like LPH-18, LPV-20/35/60 and constant current mode models such as LPC-20/35/60, Mean Well has introduced the LPL-18 to meet the increasing demands ...

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Programmable signal conditioners
November 2008, Allpronix
The Datexel range of DIN rail and hockey-puck head mount smart PC programmable transmitters carry CE and ISO9001 certification. The instruments are fully programmable from any Windows-based laptop or ...

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Energy saving adaptors
October 2008
MEAN WELL has expanded its AC/DC green adaptor line and introduced the GS90 series. The new generation of 90 W adaptors comply with the latest Energy Star regulation (version 2.0), US California Energy ...

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Protection relay
October 2008, NewElec Pretoria
The Newelec OLR84S protection relay’s success can be attributed to the separation of the start-up acceleration and running load currents. OLR84S provides load shear pin protection for geared motor drives ...

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PLC controlled beacon
October 2008
The new Spectrum 600 Series audible and visual beacon from Moflash utilises ultra-bright, tri-colour LEDs in one enclosure producing amber, green and red light in conjunction with two synchronised piezo ...

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Selecting the right HMI
September 2008, Schneider Electric South Africa
Magelis is much more than just a visual device. The Magelis range of HMIs have in fact become a remarkably powerful link between the process, the control system, the operator and the databases used in ...

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High-performance displays
September 2008, Turck Banner Southern Africa
Kübler has added a number of new features to enhance the performance of the range of CODIX displays from the 52X series.    These popular displays, which come in the standard 24 x 48 mm format, have long ...

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Value for money protection
September 2008, NewElec Pretoria, PI SA (PROFIBUS & PROFINET SA)
NewElec’s MA motor protection and control relay offers a full house of protection features that includes three independent over-temperature inputs to look after the bearings, five digital inputs and two ...

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Vibratory switches for liquid media
August 2008, Siemens South Africa
The new Sitrans LVL100 and LVL200 vibratory switches from the Siemens Industry Automation Division are suitable for signalling when the level of liquid media is sufficiently high, liquid media is required ...

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Hazardous area annunciator
August 2008, Extech Safety Systems
Based on the field-proven 725 series, RTK Instruments’ NEX7250 alarm annunciator is a feature-rich device suitable for use in Zone 2 hazardous areas and designed to Type N standards. Systems are available ...

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Photoelectric safety switches
July 2008
The new L2000 and L4000 single-beam photoelectric safety switches from SICK offer Category 2 or 4 safety according to EN 61496, and direct connection to safe controllers. Applications involving safety-oriented ...

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Level switching
June 2008
SICK has introduced an innovative filling measurement level system for use in water and oil-based liquid applications. The LFT combines limit switching and level measurement in a single device. The ...

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Prevent bearing failures
June 2008, NewElec Pretoria
All too often an excellent motor protection product is selected for the protection of relatively high kW motors that are subsequently lost due to bearing failure. When not identified in time, the rotor ...

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Relays offer logic
June 2008, Schneider Electric South Africa
Schneider Electric has introduced the new range of Zelio Logic relays, designed for better and more complex management of simple automation systems. The products offer greater intelligence on the relay, ...

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Relay modules
June 2008
Advantech’s ADAM-4069 and ADAM-5069 are two high power relay output modules for the ADAM-4000 and ADAM-5000 series. The modules are designed for on/off control in high-voltage applications and are equipped ...

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Triboelectric dust-sensitive switch
June 2008, Spero Sensors & Instrumentation
The stainless steel Snifter dust switch is used to detect filter bag breakage quickly and cost-effectively, operating on the triboelectric AC signal principle. Sperosens – environmental monitoring, fire ...

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Honeywell
May 2008
Honeywell has announced that it has awarded scholarships to 428 students from 31 countries and 31 US states to attend the Honeywell Scholars @ Presidential Classroom programme in Washington, D.C. The ...

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15 kV DPDT relay
May 2008
GIGAVAC has introduced a new 15 kV double pole double throw (DPDT) vacuum relay that is fully RoHS compliant. The G23 combines molybdenum moveable contacts with copper stationary contacts to provide low, ...

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Precise positioning switches
April 2008, Temperature Controls
The range of My-Com precision switches by Baumer was developed to perform monitoring and adjustment tasks with the highest demands on accuracy, which allows quick and reliable reference point setting ...

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