The plug-in surge arresters SPPVT2 and SPPVT12 are developed especially for photovoltaic applications. They protect the installations against transient overvoltages that can be induced by direct or indirect lightning strikes.

SPPVT12: Homes with rooftop solar PV installations represent an additional vulnerability that requires surge protection. Usually this requires Type 1/2 combinations, for DC protection - based on whether the building has also a requirement for an external lightning protection system. SPPVT12 is developed especially for photovoltaic applications and protects the installations against transient overvoltages induced by direct lightning strikes.

SPPVT2: Type 2 PV surge protection is required, when there is no risk for direct lightning strikes but indirect surges can occur. SPPVT2 protects the inverter and installations against transient overvoltage due to switching and indirect lightning strikes.

These surge arresters are suitable for a wide range of surge protection in a large number of systems.

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

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

Timer relays are especially suitable for the use in passenger cars, trucks, buses as well as construction machinery and emergency vehicles. They control pumps, valves or motors, which are meant to overtravel or stay open for a defined period of time. They equally control the co-ordinated, sequential switch-on of loads to avoid load peaks (e.g. with fans).

E-T-A timer relays are available for DC 12 V and DC 24 V applications and are suitable for standard automotive relay sockets to ISO 7588.

Key Features:

• Functions: Provide ON delay, OFF delay, and interval timing, allowing for flexible, programmable operation.
• Technical Design: Features include solid-state reliability
• Installation: Designed to fit standard automotive relay sockets to ISO 7588, facilitating easy replacement.

Key Benefits:

• Load Management: Enables sequential switching to avoid power peaks and protects batteries.
• Durability: Engineered for harsh conditions with robust construction.
• Customization: Offers flexible, programmable parameters for specific vehicle needs.

Applications:

• Buses
• Trucks
• Construction Machinery
• Specialized Vehicles
• Protecting Circuits and Controlling Devices that need to run for a specific duration

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

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

4792 – Outlet 16A for Flexible Wiring

• Mechanically Robust Design
• Available in Three Colors: Black, White, Grey
• 90° Rotated Terminals

When space is limited and wiring must be efficient, every detail counts. The new Schurter 4792 outlet type J offers an intelligent solution: horizontally aligned connections, rotated 90° compared to standard designs. This variant facilitates wiring in power distribution units (PDUs).

The 4792 outlet combines space-saving design with easy installation. The snap-in mounting system for wall thicknesses from 0.8 to 3.0 mm (standard: 1.2 and 1.5 mm; variants on request) enables quick and secure installation.

Available in black, white, or gray, the 4792 outlet offers greater design freedom for a variety of applications. With several connection options (standard: QC 6.3 mm; QC 4.8 mm, solder or PCB connections available on request), it offers various wiring possibilities. Certified according to VDE, UL, and CCC, the 16 A outlet guarantees worldwide conformity and safety.

The new 4792 outlet with a rated current of 16 A is suitable for use as a component in power distribution units (PDUs), which are used in particular in data centers, but also for other applications such as industry, IoT, and IT/telecommunications.

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

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

4 Series NDIR Hydrocarbon Gas Sensor for Industrial safety, gas detection, emissions analysis/monitoring, refrigeration and other relevant gas sensing applications.

Honeywell City Technology’s latest innovative solution for
flammable hydrocarbon gas sensing, incorporating state of
the art optical NDIR technology to provide a sensor with high
performance, precision & reliability, that can manage even in
the harshest environments.

This sensor joins the extensive line of 4 series Honeywell
gas sensors.

Features & Benefits:

• Digital interface – Sensors have UART protocol as standard to communicate with instrument via chip select option
• Enhanced resilience – Environmental robustness, for performance in high temperature & humidity
• Gas selection – Option to select from a range of target hydrocarbon gases, with linearized output for minimal processing
• Long life – Proven sensing technology, designed to operate & last over ten years
• Pre-calibrated – Sensors calibrated during manufacturing & data is written in the sensor
• Certified – Meets global performance standards in line with ATEX, IEC Ex & more

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

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

SIP style SSRs with ratings of 5 Amps at operating voltages ranging from 12 to 660 VAC. AC or DC control input.

The CX Series is a family of SIP style
PCB Mount Solid State Relays with ratings
of 5 Amps at operating voltages ranging
from 12 to 660 VAC.

Features:

• Back-to-back SCR output for heavy industrial loads
• AC or DC control input
• Zero voltage (resistive loads) or instantaneous (inductive loads) turn-on output
• UL, CSA and TUV certified

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

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

Bulgin’s extensive range of fuse holders are designed to give the high degree of protection demanded in today’s sophisticated electronic equipment. Carrying world-wide safety approvals from UL, VDE, CSA and IMQ, all types are manufactured from high grade flame retardant nylon and polyester materials.

Available in a variety of mounting options including panel mount, PCB & base mount, these compact and shock safe fuse holders are ideal solutions for 5 x 20mm, 6.3 x 25mm and 6.3 x 32mm fuses.

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

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

The SPPVR family of surge protection devices (SPDs) is our answer to the growing need for safe and reliable photovoltaic (PV) installations in residential and commercial buildings.

Powerful protection is the first step to ensuring a long lifetime for your equipment and inverters: these SPDs ensure that your system will not be damaged by any overvoltage event on the direct current (DC) side of your PV application.

The SPPVR products can be deployed in residential settings, for example in small combiner boxes or commercial applications such as array protection boxes in PV fields. SPPVR offers a future-proof portfolio for all possible use cases.

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

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

E-T-A Power relays are reliable problem solvers when it comes to switching high currents. Particularly construction machinery, agricultural vehicles as well as buses and trucks, floor-borne vehicles and other special vehicles (e.g. fire brigades) often have connected large electrical loads. In these applications, power relays disconnect the entire on-board electrical system from the battery.

Depending on the application, E-T-A offers purely electro-mechanical relays, solid state relays and also a hybrid design consisting of an electro-mechanical switching system with an intelligent electronic control unit.

Key Product Lines & Features

• EPR10 Solid-State Relays: Designed for high continuous currents (up to 200A at 24VDC), requiring 80% less space than traditional alternatives and
  eliminating the need for separate heat sinks
• HPR10 Hybrid Relays: Combine robust mechanical, bistable switching with intelligent electronic controls, enabling features like on/off delays and voltage
  monitoring
• MPR10/MPR20 Mechanical Relays: Bistable (MPR10) or monostable (MPR20) relays designed for high current switching with low power consumption

Key Advantages

• Efficiency: Very low holding current reduces power consumption.
• Durability: High resistance to environmental factors (IP57 rated for some models).
• Maintenance: Long service life with reduced maintenance costs due to solid-state technology.
• Functionality: Options for built-in overcurrent, short-circuit, and thermal load protection.

Applications

• Battery Management
• Power Distribution
• Circuit Protection in Harsh High-Load Environments

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

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

4770: Dual Block Outlet 16A

• IEC 60320 type J 16 A, Dual
• Available in black, white or grey
• Snap-in version front side

The demand for higher power density in data centers and industrial environments is constantly growing. Schurter is responding to this development with the new 4770 dual block outlet, which is designed for a rated current of 16 A and optimized specifically for use in power distribution units (PDUs). The 4770 combines a robust design with easy installation.

Thanks to its dual block configuration, the outlet can be integrated into power distribution units (PDUs) in a space-saving manner. The proven snap-in mounting system ensures quick and secure installation and reduces installation effort.

The 4770 outlet is available in black, gray, or white, offering flexible design options for different applications (multi-phase systems). Various connection options (standard: QC 6.3 mm; QC 4.8 mm; solder connections, and PCB mounting available on request) allow easy adaptation to different wiring concepts. VDE, UL, and CCC certifications ensure international compliance and a high level of safety and reliability.

The dual outlet is designed for currents of up to 16 A at 250 VAC according to IEC and 20 A at 250 VAC according to UL. It is designed for an operating temperature range of –25 °C to +70 °C. Installation is via snap-in mounting (standard: wall thicknesses 1.2 mm and 1.5 mm, 0.8 mm to 3.0 mm on request).

The 4770 dual outlet is ideal for use in data centers, industrial plants, IoT infrastructures, and IT as well as telecommunication systems. In other words, wherever compact and powerful power distribution is required.

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

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

Finder 78 Series / OPTA Power Supplies

78 Series Switch Mode Power Supplies

The 78 Series is a range of low profile
modular power supplies for electrical
cabinets and industrial switch mode power
supplies. KNX power supply with rated output
30V DC 640mA available.

Function & Features (according to type):

• Output powers 12, 36, 50, 60, 120 or 130 W
• Input (110 … 240) V AC or 220 V DC
• Class B according to EN 55022
• Replaceable input protection fuse plus spare
• Varistor for protection against overvoltages
• Width 17.5, 40 or 70 mm

Applications:

• Building Automation
• Elevators and Lifts
• Automation for Blinds, Grilles and Shutters
• Hoists and Cranes
• Panels for Electrical Distribution
• Pump Control

OPTA Power Supply

Optimal Performance and Maximum Protection with Finder's Power Supply Type 78.12….2482, specifically designed for use with OPTA

Providing the power needed to operate Finder’s PLRs (Programmable Logic Relays), the OPTA power supply provides a 24 V DC supply voltage, and can handle high inrush currents.

The OPTA power supply is also surge protected – from surges attributable to the power grid, overheating, short-circuits, and those generated by other connected devices – ensuring a reliable and durable product.

The OPTA power supply is also suitable for use in SELV (safety extra-low voltage) systems (according to EN 60950). The Type 78.12….2482 has attained ENEC and UL certifications – attesting its compliance with international safety standards.
Here are some of its features and specifications.

Features & Specifications:

• 17.5 mm (1 module) x 61 mm deep
• Low (< 0.4 W) stand-by power consumption
• Thermal protection: internal, with Vout shutdown – power OFF to reset
• Short circuit protection: Hiccup (auto-recovery) mode
• Overvoltage protection: Varistor
• Flyback topology
• Compliant with EN 60950-1 and EN 61204-3
• Parallel working for automatic redundancy – with OR diodes
• Dual Polarity and Series connection permissible
• 35mm rail (EN 60715) mount

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

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