E Preston Electrical Online
https://www.eprestononline.co.uk/Products/counter--ratemeter

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

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

SIL3 Functional Safety Incremental Encoders
With a robust and reliable design resulting in a wide range of secure products, which can be used in several types of configuration.

Any automated system potentially poses a risk to people, property or the environment. For this reason a number of safety measures have been taken. Safety standards have been created with one thing in mind: limiting risk.

With these standards as a framework, functional safety can, after a risk analysis, provide appropriate protection. Hazards are anticipated during the system design phase and are dealt with before they occur. These standards have evolved to increase the safety level and have been applicable since 2012.

Features
• Usable up to SIL3 and Cat.4 / PLe according to IEC 61508 / EN ISO
13849
• Suitable for safe motor feedback according to IEC 61800-5-2
• Robustness and excellent resistance to shock and vibration
• High protection level: IP65
• High temperature performance –20°C to +85°C
• Power supply 5Vdc or 11/30Vdc
• Digital TTL/RS422 or HTL or sine/cosine 1Vpp output
• Resolutions up to 2500ppr
• 58mm encoder, solid shaft 6mm, 9.52mm or 10mm (DSM5H), and
through shaft, standard 14mm (DSO5H)
• Connector or cable output (DSM5, side output only for DSO5)
• Stainless steel version available as an option (DSM5X) - consult factory
• Adapted anti-rotation system (DSO5H)

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

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

SMD Fuse for Electromobility Applications

• Extended rated current range with 15 A
• Ideal for electromobility applications
• Cycle resistant with quick characteristics
• Halogen-free and RoHS-compliant

The proven UMF 250 SMD fuse family gets extended by a 15 A version. SCHURTER is now offering the UMF 250 in a total of 15 rated currents between 500 mA and 15 A. It is particularly suitable for electromobility applications with higher rated currents.

With its quick characteristics (small melting integral) according to IEC 60127-4, the UMF 250 is the logical addition to the successful UMT 250 range. It is sealed against potting compound to achieve a hermetic seal for use in intrinsically safe applications according to ATEX and IECEx requirements. Thanks to its high cycle stability and minimal temperature derating, it is extremely robust and aging resistant.

Applications
Thanks to its low internal resistance, the UMF 250 is ideally suited for primary and secondary protection on SMD circuit boards. Applications of the UMF 250 include the protection of battery-powered systems with high switch-off capacities of 500 A @ 125 VDC (e.g. electromobility). The fuse is also suitable for primary protection in the AC range, for example in voltage regulator modules and charging stations.

For Lead-Free Soldering Processes
The UMF 250 is a halogen-free and RoHS-compliant fuse for lead-free soldering processes. The solder surface compatibility with the most important competitor products allows Schurter to offer the UMF 250 as a replacement product. The fuse is cURus approved. Available in 100 pcs plastic bag or 2000 pcs tape and reel packaging.

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

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

Monitoring relays are used to verify conditions in the power system or in the protective system. Monitoring relay functions include fault detection, voltage checking, and direction-sensing that confirms power system conditions.

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

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

Sensata Functional Safety Incremental Encoders

Any automated system potentially poses a risk to people, property or the environment. For this reason a number of safety measures have been taken. Safety standards have been created with one
thing in mind: limiting risk. The goal of functional safety is to minimize or eliminate risk that can occur during normal or weakened operations of machines or industrial plants.

SIL3 Functional Safety Incremental Encoders from Sensata have a robust and reliable design resulting in a wide range of secure products, which can be used in several types of configuration.

Features
• Usable up to SIL3 and Cat.4 / PLe according to IEC 61508 / EN ISO 13849a
• Suitable for safe motor feedback according to IEC 61800-5-2
• Robustness and excellent resistance to shock and vibration
• High protection level: IP65
• High temperature performance –20°C to +85°C
• Power supply 5Vdc or 11/30Vdc
• Digital TTL/RS422 or HTL or sine/cosine 1Vpp output
• Resolutions up to 2500ppr
• 58mm encoder, solid shaft 6mm, 9.52mm or 10mm (DSM5H), and through shaft, standard 14mm (DSO5H)
• Connector or cable output (DSM5, side output only for DSO5)
• Stainless steel version available as an option (DSM5X) - consult factory
• Adapted anti-rotation system (DSO5H)

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

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

A timer is a simple automation component which is used to manage actions over a period of time or control how long actions last.  The timer is a control device which triggers an action according to a time and a function.  After a predefined time has elapsed, the timer closes or opens one or more contacts. Timing cycles, whether single shot or repetitive, are started by latching inputs or pulsed inputs, allowing a wide variety of functions to be created.

Timers can be found in electrical cabinets associated with other automation functions for the following markets:

• Food industry
• Industrial automation systems
• Lighting
• Building equipment
• HVAC
• Small or large industrial machines

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/

Finder’s Astro time switch calculates sunrise and sunset times through date, time and location coordinates, allowing you to sit back and relax. Ideal for controlling applications such as lighting, CCTV, gardens, parking, shops, illuminated signs, irrigation systems, heating and cooling plant and fountains. Location coordinates easily set for most European countries through postcodes.

Functions:
• New supply voltage: 12...24 V AC/DC, 110...230 V AC/DC
• Versions with 1 or 2 contacts - 16 A, Switch ON/Switch OFF with a minimum interval setting of 1 minute
• Pulse from 1 second to 59 minutes
• Internal battery for set-up and programming without supply, easily replaceable
• 50 memory location
• Automatic adjustment for daylight saving
• Wide backlit display

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

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

The very popular range of TeeTube weatherproof connectors for exterior use assures electrical connection in harsh environmental conditions.

The range includes IP68/IP69K models that can be permanently submerged under water and withstand high pressure water jets as well as dirt and dust. TeeTubes have been installed in major projects including illuminating major river bridges, illuminating billboards at sporting events and public water features. They suit a wide range of applications, including architectural lighting, street lighting, underwater lighting, illumination of road signs and billboards and the connection of interior and exterior Class 2 electrical devices.

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

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

High Performance Fuse For Automotive Applications
• Very high rated current up to 50 A
• Safely interrupting 1000 VDC
• Versatile mounting options

With the AEO 10.3x38, SCHURTER launches a high-performance fuse for particularly high voltages up to 1000 VDC and currents up to 50 A, which is particularly suitable for automotive applications.

High voltages and high currents occur in electric vehicles in numerous places. Their battery packs with several thousand rechargeable cells store enormous amounts of energy. This in order to meet customer requirements concerning driving performance and range by still providing the shortest possible recharging times. To safeguard this level of power, you need highly reliable high power fuses. Such fuses are required, for example, in the BMS (Battery Management System), for on-board and off-board chargers, DC-DC converters and other systems exposed to high voltages.

Welding Is More Reliable
A weak point of every fuse is the connection between the melting wire and the contact cap. This connection is usually done by a solder joint. In the fuse production process, however, this technology brings quite many difficulties. Creating the connection by welding increases the reliability by far. SCHURTER uses a new, patented process which guarantees highest reliability.

Versatile Mounting Options
The new fuses of the AEO series offer a multitude of possible mounting options. In addition to the cartridge fuse, which requires a fuse clip (recommended model: SCHURTER CSO) and the classic mounting directly on a printed circuit board, screwable version for surface mounting or even axial mounting are available.

Applications Automotive:
DC/DC Converter, On Board Charger, Battery Management System, PTC-Heater and Houshold Charging Stations.

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

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