Only reliable, continuous monitoring of the three-phase supply can ensure  trouble-free and efficient operation of motors, machines and equipment. ABB now offers a comprehensive range of 22.5 mm, within the CM series, to protect sensitive equipment from adverse three-phase voltages. The product range extends from the full protection
multifunction three-phase monitor, CM-MPS, to single-function devices for monitoring single parameters.

The CM-MPS is a multifunction monitoring relay. It monitors all phase parameters including: phase sequence, phase failure, over- and undervoltage and phase unbalance. It is available with or without monitoring of the neutral conductor. Seven devices with a graded scope of functions complete the CM product range. The new devices for three-phase voltage monitoring, CM-PVS and CM-PSS along with the CM-PAS for monitoring phase unbalance, offer functions adapted to the relevant requirements and facilitate the accurate monitoring of three-phase mains.

The characteristics of the three-phase monitors are:
• Phase failure monitoring
• Phase sequence detection*
• Over- and undervoltage monitoring (fixed or adjustable)*
• Adjustable phase unbalance threshold*
• Adjustable delay time, and selectable ON-delay or OFF-delay function*
• Dual-frequency,  50/60 Hz operation
• Powered by the measuring circuit 
• 1 n/o, 1 or 2 c/o  contacts
• LED for status indication
• Wide operating voltage range

*Depends on device type

Enquiry Form: https://www.epreston.co.uk/contact/

Home Page: https://www.epreston.co.uk/epblog/

Arcolectric’s latest design is a new toggle switch with integral IP67 sealing.

The new 3900 switch, with body designation ‘E’ for single pole and ‘F’ for double pole, incorporates internal and external seals to provide panel sealing to IP67. This eliminates the need to fit additional clumsy toggle covers, therefore making the switch straightforward to use and quicker to assemble.

Rated at 20A, 277Vac, it is available with ON-OFF, ON-ON and three position ON-OFF-ON switching. The panel mounting hole is the industry standard 12.7mm diameter, terminals are 6.3mm tabs or solder tags and the levers manufactured from nickel plated brass.

This new version of Arcolectric’s popular 3900 series is ideal for both internal and external applications where the environmental integrity of the equipment must be maintained against the ingress of dust or water.

Enquiry Form: https://www.epreston.co.uk/contact/

Home Page: https://www.epreston.co.uk/epblog/

Enhanced Accuracy and Reliability in Harsh High-Temperature
Environments

Honeywell introduced its R300 Series Temperature Sensor for use in potential EGR (exhaust gas recirculation) applications where operating temperatures can reach 300 °C [572 °F]. The R300 Series Temperature Sensor features enhanced reliability, accuracy and responsiveness which helps optimize fuel economy and engine performance.

The purpose of an EGR system on an engine is to reduce NOx (nitrous oxide and nitrous dioxide) emissions by cooling and recirculating exhaust gas back into the engine. The R300 helps the EGR system optimize those NOx emission controls.

The R300 Series uses RTD (resistance temperature detector) technology and features a robust, stainless steel closed-tip design to enhance reliability in aggressive environments. It provides an excellent response time as demonstrated by validation testing required by the transportation industry. The R300 also features an integral connector.

The R300 Series Temperature Sensor expands Honeywell’s existing temperature probe product portfolio designed for the transportation industry, namely the ES110-, ES115- and ES120-Series. The R300 Series is designed for potential use in heavy duty vehicle engine (oil, coolant, fuel and air inlet temperature sensing) applications.

Enquiry Form: https://www.epreston.co.uk/contact/

Home Page: https://www.epreston.co.uk/epblog/

The Type 18.21 and Type 18.31 ceiling-mount PIR movement detectors from Finder have been designed to detect the presence of body heat and movement within a defined sensing area, for the control of lighting in commercial, industrial and domestic premises.

There is considerable pressure to reduce energy consumption in public buildings and the workplace, both for reasons of cost and to meet legislative demands for more energy-efficient control of lighting, and these detectors will be of interest to designers, engineers, contractors and installers of lighting control systems for offices, factories, workshops, schools, hospitals, care homes and similar environments. They are particularly suitable for use in areas that do not require continuous lighting, such as stairwells, corridors, store rooms and washrooms.

The 18.31 is a shallow depth flush mounting recessed unit that offers neat, unobtrusive mounting in either suspended or plasterboard ceilings, even where space is limited, while the 18.21 is a low profile surface mounting version that is suitable for more solid surfaces where recessing is not practical. Both models feature a 110º sensing angle that provides coverage over an area of up to 8m diameter, and both also benefit from an integral adjustable threshold light sensor that allows operation to be varied relative to the ambient light level. An adjustable on-time gives the advantage of an adjustable delay before the lights are turned off after the detection of movement ceases.

Both versions are rated at 10A and 230V AC, and have a nominal lamp power rating of 1kW for incandescent and halogen bulbs and 350W for compensated fluorescent lights.

Packaged in a compact white plastic housing, these competitively priced products are ideally suited to a wide variety of installations.

Enquiry Form: https://www.epreston.co.uk/contact/

Home Page: https://www.epreston.co.uk/epblog/

Bulgin’s MP0050 is a new large diameter vandal resistant switch.

At 32mm diameter the MP0050 is the largest in Bulgin’s extensive range of vandal resistant switches. Manufactured from Stainless Steel it is designed to complement the other switches in the range and is available with flush and protruding buttons.

Rated at 5A, 250Vac, with single pole changeover contacts and momentary switching, it's designed with a minimum life expectancy of 1,000,000 mechanical operations and 35,000 electrical.

The temperature rating is from -20 to +70˚C and with front panel sealing to IP68 it is ideal for external applications.

As with the others in the range the MP0050 lends itself to door entry and access control applications along with many other uses such as; car park barriers, emergency telephones, panic buttons, vending machines, lifts, petrol pumps and food processing. The larger diameter button will also benefit the visually impaired.

Enquiry Form: https://www.epreston.co.uk/contact/

Home Page: https://www.epreston.co.uk/epblog/

This latest addition to the 900 Series Buccaneer connector range further extends the applications of this increasingly popular variant of Bulgin’s IP68 rated circular connectors.

All existing body styles; flex, flex in-line, panel mount and flange mount types can now offer 10 contacts rated to 10A, 250V.

Using the already tried and tested 900 Series body shells allows the connector sealing properties of IP68 dust and water resistance to be maintained and all existing accessories can be used.

The 900 Series Buccaneer carry UL, CSA and VDE approvals and, along with the new 10 pole version, are available with 2, 3, 4, 5 and 7 pole contacts and have ratings up to 32A, 600Vac/dc. Temperature range is from -40 to +85°C and cable accommodation is 7 to 22mm diameter.

Enquiry Form: https://www.epreston.co.uk/contact/

Home Page: https://www.epreston.co.uk/epblog/ 

ABB has significantly enlarged its range of switch-mode power supply devices (SMPS). Supplementing the existing range of tried and tested SMPS products of the CP series for nominal currents of 0.3A up to 20A, there are now new CP-S and CP-C series for the range between 5 to 20A available.

The SMPS devices of the CP-C series are characterized by their modular, plug-in functional modules that extend the functionality of the devices tailored to the requirements of the customer. The CP-C MM signal module for example monitors the input and output voltage, and has a remote-OFF function. More plug in modules are under preparation.

There are also manifold applications for the CP-S devices that – while offering the same modern and powerful technology – dispense with some of the extra features of the CP-C series.

All power supply units of the CP, CP-S and CP-C series are primary SMPS: they guarantee the best possible efficiency (>88%), minimized losses, environmental compatibility and cost efficiency.

Characteristics:
CP-S range
• Selectable input voltage 85-132VAC/184-264VAC, 220-350 V DC
• Fixed output voltage

CP-C range
• Autorange input 85-264VAC, 100-350VDC
• Adjustable output voltage 22-28VDC
• PFC (power factor correction)

The new CP-S and CP-C range power supplies feature power reserve of up to 50%. The 5A and 10A models have pluggable, double connection terminals, and LED indication "OUTPUT OK". All of them are CE marked, the C-Tick mark and the cULus (508) and UL60950 approvals are under preparation.

Enquiry Form: https://www.epreston.co.uk/contact/

Home Page: https://www.epreston.co.uk/epblog/