PRODUCTS EDITOR’S CHOICE
RELIABLE, FLEXIBLE AND ECONOMIC POWER SUPPLY
SCRUFFS TRADE SHORTS: A REVIEW F
or electrical engineers, or anyone that works in an
industrial environment, it is important that the clothes they wear offer comfort, protection and durability. Here at Electrical Engineering magazine, we were given the opportunity to test a pair of Scruffs Workwear trade shorts. The shorts, which are
Eco-Rail-2 power supply units offer manufacturers of machinery and control cabinets the possibility to supply power to consumers flexibly and economically. These units provide basic functionality creating a solution with the optimum price-performance ratio for numerous applications. Demands on the power supply market are steadily increasing. Maximum efficiency and constant performance even at high temperatures are a must. Diagnostic and communication facilities are also increasingly in demand as the components are integrated into higher-level networks and become part of Industry 4.0 applications. Murrelektronik offers advanced high-performance solutions to meet these requirements. At the same time, ‘classic’ applications still exist
– without such increased requirements. In such applications, the electrical engineer does not have to deal with exceptional ambient conditions and the power supply does not have to be integrated into a system. The essential requirement in such cases is a power supply solution that operates reliably, flexibly and economically. The Murrelektronik Eco-Rail-2 series power supplies are predestined for such applications. They easily meet all basic requirements for power supply systems and help to monitor the overall costs in the control cabinet. Five devices are available in the series in different current ratings from 1.3 to 20A. The output voltage of the devices can be set from 23 to 28V. This means that the required voltage can be supplied to the consumer regardless of the length of the power supply line. Connecting two power supply units in series allows the output voltage to be increased to 48V. Eco-Rail-2 operates reliably in temperature
ranges between zero and 55°C and thus covers a wide range of application areas. The power supply unit can be easily mounted on the DIN rail without any tools. The screw terminals are attached to the front of the unit to facilitate quick and easy cable connection. UL approval enables worldwide use. Worthy of note is the ‘hold-up time’ of the Eco-
Rail-2 series switch-mode power supplies, which is up to 130ms. This helps to bridge voltage drops at the input side.
www.murrelektronik.co.uk
42 MAY 2018 | ELECTRICAL ENGINEERING
available in slate grey, ink blue or black, are well ventilated and provide a summer alternative to trade trousers. Although more lightweight than their full-length counterparts, the shorts do not compromise on durability and practicality. They are hardwearing and are designed to endure
varying weather conditions, with reinforced stitching on the areas more venerable to stress. With ‘holster’ style
compartments that layer over the top of the main pockets, the shorts have plenty of room for tools. The shorts also include hammer loops and D-ring sections, a ruler pocket, space for mobile phone and zipped
compartments for extra storage. The shorts are well made, smart in appearance, and very comfortable.
Scruffs Workwear
www.scruffs.com
CABLE TEST VAN SETS NEW STANDARDS
Cable test vans in the new Megger Centrix 2.0 range provide a fast, easy and convenient solution for testing, diagnosis and fault location on underground cables. The new test vans are an exceptionally useful tool for ensuring that network downtime and consumer minutes lost are kept to an absolute minimum. Centrix 2.0 vans are
equipped with the latest generation of non-destructive cable diagnostic systems and are arranged so that all major functions can be accessed from a comfortable operator position within the vehicle. Megger’s renowned easyGO user interface, in conjunction with a 21.5-inch touch-screen display and a JogDial joystick,
ensures intuitive operation for the on-board systems. A step-by-step operator
guide is also provided, and all safety-relevant parameters are automatically monitored in line with current standards. These features are particularly valuable when the van’s test systems are being operated by inexperienced users. At the heart of the
integrated systems on board the Citrix 2.0 cable test vans is a high power TDM 45 diagnostic system which, as well as DC testing up to 80kv, supports three AC test voltage waveforms – VLF sinewave, VLF cosine-rectangular and damped AC (DAC). The Teleflex VX incorporates
automatic configuration, automatic cable end
measurement and automatic fault location and, for experienced users, also supports full manual control. Centrix 2.0 cable test vans
are provided with lithium-ion batteries and 5kVA electronic generators, which means they can be used in any location, even if mains power is not available. For more information visit the website below.
www.megger.com
LED HOLDERS COMPATIBLE WITH COB-LED
TE Connectivity (TE) has added the LUMAWISE Z45 LED Holder to its range of holders for chip-on-board (COB) LEDs. The new second-generation LED holder is made in a high-strength, highly reflective halogen-free flame retardant thermoplastic (PBT). The Z45 LED holder is 5mm smaller compared to TE’s Z50 holder and uses adhesive for easy assembly of the COB LEDs in the luminaire. The LUMAWISE Z45 LED Holder provides a quick and easy solderless connection to COB-LED
arrays, thanks to the use of poke-in contacts and adhesive bonding. It conforms to Zhaga standards for LED modules, making it compatible with other LED lighting components. The standard screw pitch of 35mm enables the use of standard heatsink drilling and mounting procedures. The 120° optic angle of the LED holder keeps light loss to a minimum and the use of adhesive for LED assembly allows for high COB-board size tolerance, without a clamping system.
www.te.com
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