Operator Interfaces, Switches & Relays


Latest Articles

Industrial Ethernet active store and forward switch
October 2001
Woodhead Connectivity has introduced the ENHSD, an active switch, which unlike a repeater hub, will intelligently route Ethernet messages only out of the appropriate port. It is also a store and forward ...

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Operator interface modules
October 2001
Red Lion's CL01 and CL04 operator interface terminals provide an effective solution for OEM applications where low cost is critical. They are cost-effective solutions for original equipment designs, ...

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Contactors suitable for switching capacitor banks
September 2001, Rockwell Automation
Rockwell Automation is expanding the successful MCS product series by introducing contactors for switching capacitors. The 100Q-C series' new devices are ideally suited to the demanding applications of ...

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Rope-pull safety switches
September 2001, Turck Banner Southern Africa
Banner is offering emergency-stop rope-pull safety switches, positive-opening mechanical switches that connect to cables to provide multiple-location emergency shutdown capabilities. Rope-pull safety ...

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Level switches with built in temperature sensing
August 2001, DCM Group
KSR's range of over 200 different magnetic float switches operate using permanent magnet and reed switches. The magnet, which is built into the float, actuates with its magnetic field, through the wall ...

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Flexible, programmable function key terminals
July 2001
The Omron NT2S key terminal, from Yelland Control, features a six-key, programmable keypad and a two-line, 2 x16 character, backlit LCD display. The terminal is powered up via the connection to a PLC, ...

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Text-based operator interface
July 2001
The CL01 is the newest offering in the Paradigm range of operator interfaces from Red Lion Controls. The CL01 is well suited for OEM applications where cost is critical. The entire Paradigm range of operator ...

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Isolated RS232 to RS422/485 converters
June 2001
The ADAM-4520/4522 from Advantech are isolated converters designed to change standard RS232 port signals into nonisolated RS422 or RS485 signals. There is no need to change the PC's hardware or software ...

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Leverless limit switches good for PLC feedback in Ex zones
May 2001, Switches International
GO Switch has been the market leader in robust leverless limit switches since 1950. These switches offer the feature of no physical contact in order to switch, as they operate on a magnetic basis, sensing ...

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Leverless limit switches for harsh environments
April 2001, Switches International
These switches offer the feature of no physical contact in order to switch, as they operate on a magnetic basis, sensing flat mild steel for its operation. This benefit means that there are no arms to ...

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Electronic pressure switches
April 2001, Instrotech
High quality Kobold Pressure Switches - for where high switching accuracy, long term stability and repeatability on pressure monitoring is required - are now available from Instrotech. Switching ranges ...

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Slot-in switch for profile cylinders with 'T-slot' mounting
March 2001
IFM Electronic's new MK5047 is a slot-in switch for profile cylinders with 'T-slot' mounting. Both mounting and setting are made easier, as there is no need for additional mounting accessories. The switch ...

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Level switch for AC connection
March 2001
The Type KN 0001 programmable capacitive level switches from IFM Electronic are designed for AC connection in level monitoring applications using dry bulk materials or liquids. Detection is possible even ...

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Leverless limit switches for harsh environments
February 2001, Switches International
These switches offer the advantage of needing no physical contact in order to switch, as they operate on a magnetic basis, sensing mild steel for operation. This benefit means that there are no arms to ...

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Improving interference suppression
February 2001, Phoenix Contact
The new screen terminal blocks from Phoenix Contact effectively prevent electro-magnetic interference with the high contact quality of the screen interface. They have reliable, large-area contacts and ...

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Instruments for switching and speed measurement
February 2001
The microprocessor-controlled converters and switching instruments of the Jaquet FT1400 series are for monitoring measured variables as a function of time, such as rotational speed, clock rate, etc. The ...

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Protecting gates and entry points
February 2001, Turck Banner Southern Africa
RET Automation is offering Banner's GM-FA-10J gate monitoring safety module - a new monitoring device for use with both mechanical and magnetic safety switches for control-reliable gate and door guarding ...

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Leverless limit switches
December 2000, Switches International
GO switches are particularly well-suited to harsh environments, such as those found in the power generation industry. They have been a market leader in robust leverless limit switches since 1950. These ...

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Safety switches offer extended flexibility
December 2000, Turck Banner Southern Africa
Banner Engineering is offering the SL-LS42 Series safety switches - advanced-locking style switches available with a choice of features for more flexibility. SI-LS42 switches can be wired to machine safety ...

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Multifunction contactor is more than a switch
December 2000, Endress+Hauser South Africa
Featuring two fully programmable relay contacts, the RTA 421 is best described as a low-cost combination of a contactor, display and power supply. Its compact housing has three pushbuttons for easy front-end ...

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