Power management company Eaton offers Dumeco DC switch-disconnectors to help solar PV equipment manufacturers and installers gain a competitive edge within the increasingly significant solar power market. These innovative products stand alone as cost-effective, reliable and safe solutions; they also integrate efficiently and easily with matched Eaton components into a continuous channel that transports energy safely from the solar module to the power grid.

The DC switch-connectors are being made available in four frame sizes; the largest has 800 A, 1000 A and 1250 A options, while the smallest offers 63 A, 80 A and 100 A versions. Accordingly, the devices are suitable for applications ranging from residential and light commercial rooftop sites to large commercial and utility scale installations, as well as solar combiner box and inverter equipment.

This switchgear is available in 2-pole configurations that reduce the need for bridging links between the poles; this cuts installation time and copper costs. Bi-directional pole connection gives installation flexibility. The units’ minimal footprint of up to 52 per cent smaller than any competing product allows installation space savings. An independent manual operating mechanism controls special self-cleaning roller contacts which provide long term safety and reliability.

Operation is through either a direct handle or an extension shaft of up to 600 mm and handle for thru-the-door interlocking. IP65-rated grey or red/yellow K Line handles are available, with both padlock and cylinder lock versions. Door interlocking configurations include a ‘defeatable’ option in the ON position for fault finding. An auxiliary switch set is also available; this offers 1NO+1NC contacts.

The Dumeco DC switch-connectors are rated to 1000 V DC, are compliant with standard EN-IEC 60947-3 and have CE, CCC, RoHS and EAC certifications. They offer high short circuit ratings and operate to utilization category DC-21B. The units are suitable for base plate mounting.

This new range of DC switch-connectors is built to handle the most demanding of PV applications, while providing reliable isolation to ensure safe operation within an installation. Perfectly aligned with the robust Dumeco AC switch-disconnectors, it enables an excellent all-round AC/DC package. The products offer an attractive solution to distributors, installers and manufacturers due to their competitive pricing, cost-saving features, proven reliability and compact, flexible design. They form part of Eaton’s comprehensive global portfolio that serves the renewable energy segment.

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Schurter expands the UMT-H range with the rated currents 12.5A and 16A. The compact SMD fuse stands out with its high breaking capacity of 1500A at rated voltage. With its square, compact design, the UMT-H is the space saving alternative to classic cylindrically shaped cartridge fuses (e.g. 5x20 mm) and also suited for more cost-effective, automated assembly.

Features:
* High voltage ratings up to 277 VAC / 250 VDC
* 19 rated currents from 160 mA to 16 A
* High breaking capacity of 1500 A
* Safe interruption at line voltage
* Smaller alternative to cylindrical 5 x 20 mm fuses
* Applications in explosive environments (IEC60079-11)

Applications:
* Primary protection on SMD PCBs
* Industrial electronics
* Sensors
* Power supplies
* Equipment subjected to explosion proof testing
* Lighting and other appliances connected to single phase 277 VAC in US market

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The UMT-H range will be extended next year by the rated currents 20A, 25A and 32A.

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

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

With increasing health and safety demands and the need to protect valuable equipment, Finder’s new top of the range 70.42 3-phase, multifunctional monitoring relays offer maximum flexibility in monitoring a range of electrical supply parameters in compact, easy to adjust units at a competitive price.

This relay is ideal for monitoring supplies to machinery, equipment, and installations where failure or variation outside acceptable limits may result in damage to equipment, danger to personnel, or disruption to critical processes or procedures.

The Finder monitoring relay contributes to meeting the specific requirements of machine safety legislation (EN/60204-1), which requires that portable or semi- portable motor-driven equipment be prevented from starting up in the wrong direction should the local phases be reversed.

Able to monitor supply voltage within adjustable limits in six selectable modes (Under-voltage, Over-voltage, Window — all with or without Memory option), the unit also responds to out-of-limit Phase Asymmetry, incorrect Phase Sequence, and both Phase and Neutral loss.

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

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

Schurter expands the SHT 6.3x32 range of high voltage fuses with the rated currents 12.5A and 16A.

The high breaking capacity of 1500 A at 500 VAC allows for interesting possibilities in new applications and protects people and electronic systems from overcurrent and potential fire outbreaks in case of short circuits.

Overview:
* Primary protection up to 500 VAC
* High breaking capacity of 1500 A @ rated voltage
* Time-lag (T) characteristic according to UL 248-14
* Wide range of fuse holders and clips available
* Dimensions: 6.3 x 32 mm
* Standards: UL 248-14
* Soon to announce rated currents 20A, 25A and 32A.
* Applications: 3-phase systems, photovoltaic, Building automation (HVAC), frequency converters and power electronics

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

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

Honeywell’s Low Temperature Passive Probes, LTP Series, are a modular range of temperature sensors designed for potential use in transportation applications. The LTP Series feature a durable, closed-tip design that maximizes reliability in harsh applications.

The sensor’s thermistor sensing element effectively senses gases, liquids or solids because of its enhanced sensitivity, accuracy and reliability. Easy-to-install threaded mounting provides reliable operation in harsh environments. They are designed to meet the customer's need for sensors that are configurable, backwards-compatible, durable, and allow customers to meet their specific application needs.

Potential Transportation Applications
* Ambient air temperature sensor
* Automatic transmission system
* Engine air inlet system
* Engine cooling system
* Engine lubrication system
* Fuel system
* Haldex coupling system
* Hydraulic pump systems

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

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

The ever popular 12.51 digital time switch and 12.81 Astro can now be programmed using NFC right from your android phone using the latest App from the Google Play store.

Perfect for lighting or controlling outdoor spaces such as lighting, CCTV, and fountains, these new versions can be programmed in classic mode via the joystick, or smart mode via smartphones with NFC communication. Once the FINDER Toolbox App is downloaded and installed, you can read an existing program, or program your device with maximum flexibility, changing the smallest details and saving your program directly to your smartphone.

At this point you simply touch the smartphone to the product to transfer the data. FINDER Toolbox provides all technical data sheets and News from Finder.

Featuring 1CO 16A contact, back-lit display, automatic summer time adjustment and internal battery, these automation essentials will save you time and energy.

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

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

Spotlight on Synchronous Motors made by Crouzet Motors

Developed in the late 60s, the AC synchronous motor ("tin can" type) designed by Crouzet Motors, has become the best-selling motor on the market today, with 2 million motors and geared motors sold in 2014.

Crouzet Motors offers about twenty standard configurations of 1 and 2-direction synchronous and stepper motors that are UL - CE - ROHS certified. All voltages and frequencies are available, allowing for installation into applications worldwide.

In association with 4 models of gearboxes, we offer a big number of different configurations covering the speed range from 150 rpm to as slow as 1 turn per week!

Crouzet motors are characterized by the nominal power from 0.3 to 5W and our gearboxes offer a maximum permissible torque from 0.5 to 5Nm.

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

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

Honeywell’s Limitless™ WBX Series combines the best of Honeywell’s MICRO SWITCH™ Heavy Duty limit switches with a point-to-point (P2P) network. It has a variety of remote or built-in antenna options. Wireless-enabled limit switches can be used for position sensing and presence/absence detection for an endless number of applications.

The WBX Series is especially beneficial for remote monitoring applications where wiring or wire maintenance is not physically possible or economically feasible. Combining this greater flexibility with proven harsh-duty packaging can result in increased efficiencies and improved safety for machines, equipment, and operators.

Customers with a global footprint can utilize local Honeywell experts for application and solution support.

VALUE TO CUSTOMER
• Enables control in remote parts of application/machinery/manufacturing plants, where wiring is not possible or feasible
• Ability to reconfigure and network multiple interfaces, or point-to-point with personalized addresses which allows for adding, subtracting, or relocating Limitless™ inputs easily
• Can reduce installation/maintenance costs with no wiring to Limitless™ switches, conduit, strain relief, clips, connectors, junction boxes, etc.
• Wireless operation and signal transmission eliminates the need to physically send maintenance engineers into the field thus reducing installation and operating costs
• Provides an independent layer of protection for equipment, by giving an immediate indication that a remote mechanical device is not positioned or moving correctly
• Batteries are inexpensive, readily available worldwide, and easy to replace. No re-provisioning is required after a battery replacement
• Batteries are readily available and easy to replace

FEATURES
• Radio (license-free and global) WPAN 802.15.4, 2.4 GHz, point-to-point (P2P); up to 305 m [1000 ft] line-of-sight communication range when used with a Limitless™ WPMM Series wireless monitor, WDRR Series receiver module, or WMPR receiver module (sold separately).
• License-free RF wireless protocol standards (IEEE 802.15.4)
• Hazardous location approvals: IP67 (self certified), NEMA 4 sealed metal enclosure
• Able to reconfigure multiple WBX Series switches
• Batteries readily available from electrical supply houses and distributors
• Global use

POTENTIAL APPLICATIONS
Industrial
• Agriculture machines
• Door position
• Grain diverters or flaps
• Hose attachment verification
• Material handling
• Paint robotics
• Pipeline pigs
• Pump stroke count
• Remote or temporary equipment
• Safety shower alarming
• Valve position

Transportation
• Agriculture machines

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

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

Where the need exists to control lighting, temperature or other functions according to daylight hours, Finder’s Astro 12.81 time switch is an innovative, easily programmable time switch, which employs a unique digital program to calculate sunrise and sunset times by simply entering the location’s postcode with a single joystick. Its newest version now offers added flexibility, with the capability to override the Astro ON time with time-switch settings, thus further avoiding energy wastage.

With ever increasing pressures to reduce energy consumption, the Astro will control lighting, heating/cooling and humidity equipment in commercial, residential and industrial applications wherever sunrise and sunset times are critical in determining operational times, or where stipulated by local or national regulatory requirements.

The Astro’s micro-controller stores postcode data from 16 European countries, including the UK, which together with date information allows for the precise calculation of seasonal sunrise and sunset times. The Astro is also programmable using geographical coordinates, settable between 30°S and 64°N; 16°W and 50°E. The Astro will also automatically compensate, should European Summer Time be enabled.

For further versatility, the output switching can be advanced or retarded about the calculated sunrise (or sunset) time in 10-minute increments — up to a maximum of 90 minutes. A manual override of the output status allows for maintenance or one-off events.

With a 16 A 250 V AC rated output contact and a 120 A 5 ms peak current rating, the Astro time switch is capable of directly switching 2000W halogen, 750W compensated fluorescent, 200W CFL or LED lamp loads and AC15 loads up to 750VA.

The integral back-up battery, which is easily replaceable from the front, features an automatic power save mode which helps extend battery life.

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

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

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

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