The Most Durable Power Relay

The EPR10 electronic power relay is a solid state relay for high continuous currents.  It is suitable for use in utility vehicles and special vehicles where reliability and functional safety are at a premium.  The EPR10 allows a continuous load up to 200A at DC 12V and 24V.  It is therefore particularly suitable for the use with powerful loads which have to be switched frequently.

The EPR10 Electronic Power Relay is Available in Two Different Versions:
• The EPR10-N is a switching relay with a long life span thanks to arc-free switching operations.
• The EPR10-P additionally features a protective function for monitoring of the charging current.

Benefits:
• Maximum life span and minimum maintenance through wear-free switching
• Tremendous space-savings through a flat design with a sophisticated heat management without additional heat sink
• Flexible use due to silent switching – also suitable for installation in the passenger cabin

Technical Data:
• Voltage Ratings:  DC 12V / DC 24V
• Max. Continuous Current:  EPR10-N 100A or 200A
• Current Ratings:  EPR10-P with protective function, 75A, 100A, 125A, 150A, 175A, 200A
• Protective Function:  3 trip curves:  fast, medium delay, long delay
• Degree of Protection:  IP57
• Ambient Temperature:  -40 °C … +85 °C

Standards:
• ISO 16750
• IATF 16949
• ECE R118
• ECE R10
• ASIL upon request

Typical Applications:
• Emergency cars and special vehicles such as ambulances or aircraft towers
• Pumps, fans, cooling systems

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

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

The Nova22 PM22 Series is a family of 22.5mm wide panel mount Solid State Relays that offer the highest power density in the market with ratings up to 95 Amps at 600 VAC. PM22s have a contactor terminal configuration which includes a plug-in connector for the control input, available in either standard “screw” or “spring cage” terminals.

PM22 Series models are C-UL-US and TUV approved.

Features:
• Built-in overvoltage protection
• DBC substrate for superior thermal performance
• IP20 touch-safe housing
• AC or DC control
• Zero voltage or instantaneous turn-on output
• 4000 VAC optical isolation

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

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

Miniature Industrial Relays 8 - 16A

Function & Features:
• DC coils, 500 mW or AC coils, 1.2 VA
• Socket Mount or Direct Connection via Faston Connectors
• Available with Lockable Test Button, Mechanical Flag & LED Indicator
• 8 mm, 6 kV (1.2/50 μs) Isolation, Coil-Contacts

Applications:
• Automation for Blinds, Grilles and Shutters
• Elevators and Lifts
• Shipyards
• Road / Tunnel Lighting
• Hoists and Cranes
• Bottling Planats
• Control Panels
• Panels for Electrical Distribution

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

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

The Lightest Bistable Power Relay

The MPR10 is a single pole, bistable power relay. It was designed for switching high current loads and for disconnecting the battery from the on-board electrical system.

For the switching operation, the MPR10 only requires a short current pulse. Afterwards, the permanent magnets hold the contact reliably closed at no
load. Materials of superior quality make the MPR10 the lightest water-proof and dust-proof power relay in the market. It offers extremely flexible installation
options in utility vehicles.

A range of mounting versions allows direct replacement of standard relays. The MPR10 can carry or switch up to 300A continuous current at DC 12V and 24V.

Benefits:
• Robust reliability over the entire life span through the use of corrosion-proof materials
• Improved CO2 emission values through a holding power reduced to 0%
• Space savings up to 40% through a particularly compact design

Technical Data:
• Voltage ratings DC 12V/DC 24V
• Current ratings 100A/200A/300A
• Degree of Protection IP6k9k (IP67)
• Ambient Temperature -40°C … +85°C
• Mass approx. 280g

Standards:
• ISO 16750
• IATF 16949
• ECE R118
• ECE R10
• ASIL upon request

Typical Applications:
• Buses, trucks, construction machinery, agricultural vehicles and forestry equipment as well as special vehicles
• Air-conditioning, compressor units, battery isolation switches and dual battery systems

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

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

The LN Series of panel mounted Solid State Relays offer reliable back-to-back SCR switching up to 75 Amps at 528 VAC, coupled with a patented trigger circuit design which allows the SSR to switch resistive loads with minimal electromagnetic noise generated, ideal for use in commercial, residential and medical applications.

UL recognized and TUV certified, the LN series offers superior performance in applications that demand reliable switching and low emitted noise.

Features:
• Rating up to 75A @48-528 VAC
• Zero Voltage Turn-On Switching
• Conformance with IEC60947-4-3 Environment B for low voltage domestic, commercial and light industrial locations/installations
• Patented Low Noise trigger circuit
• IP20 touch-safe housing is available
• Built-in Input/Output over-voltage protection
• LED Input Status Indicator
• 3500 VAC Optical isolation
• MC Compliant to level III

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

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

Low Profile PCB Relay (SSR)

Functions:
• Type 41.81-9024. 5 A, 24 V DC Output Switching
• Type 41.81-82-40, 3 A, 240 V AC Output Switching, Zero Crossing Switching

Features:
• Type 41.81 is a Solid State Relay for Printed Circuit Mount (direct or via PCB socket)   or
• Type 41.81 is a Solid State Relay for 35mm Rail Mount (via screw or screwless sockets)
• Silent and has speed switching with long electrical life
• LED Indicator
• Low Profile (15.7 mm)
• Wash Tight: RT III
• 2500V AC Insulation, Input-Output

Applications:
• Medical & Dentistry
• Industrial Robots
• Building Automation
• Control Systems
• Timers & Lighting Controls
• Door & Gate Openers
• Electronic Circuit Boards
• Vending Machines

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

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

The Most Energy-Efficient Monostable Power Relay

The MPR20 is a monostable electro-mechanical high current relay. Its wide range input allows installation and operation in both 12V and 24V on-board electrical systems without change of the hardware and it carries 300A continuously. In the event of a power disruption, the relay will at once go into its original state due to its monostable design.

Reduction of holding power by 80% and of pull-in power by 50% allows direct connection to the controlgear and provides additional cost reduction and environmental advantages in spite of a monostable design. By using standard termination technologies and mounting dimensions, the MPR20 can easily and quickly replace conventional relays.

Benefits:
• Reduced fuel consumption and CO2 emission due to an 90% lower holding power
• Flexible installation for demanding applications due to a robust, water- and dust-proof design
• Reduced installation time through direct connection to the controlgear

Technical Data:
• Voltage Ratings                      DC 12V/DC 24V
• Current Ratings                     100A/200A/300A
• Degree of Protection            IP6k9k (IP67)
• Ambient Temperature          -40°C … +85°C
• Pull-In Current                       DC 12V: 2.5A/DC 24V: 3A
• Holding Current                    DC 12V: 0.12A/DC 24V: 0.7A

Standards:
• ISO 16750
• IATF 16949
• ECE R118
• ECE R10
• ASIL upon request

Typical Applications:
• Buses, trucks, construction machinery, agricultural vehicles and forestry equipment as well as special vehicles
• Air-conditioning, compressor units, battery isolation switches and applications in accordance with Machinery Directives

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

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

EL Series AC output solid state relays come in a compact, 21mm x 35mm housing and offer ratings up to 30 Amps. These compact SSRs come with a pre-installed thermal pad, input LED status indicator, optional built-in overvoltage protection, and are C-UL-US and TUV certified and CE compliant.

The EL Series mechanical design includes quick connect terminals and an innovative 90° bent terminals option ideal for applications with limited vertical space.

Additional Features of the EL Series Panel Mount AC SSRs Include:
• Load current ratings from 5 to 30 Amps @ 24-280 VAC
• Back-to-back SCR output with low off state leakage current
• Flexible 5, 12 and 24 VDC control voltage options
• Zero voltage or instantaneous turn-on outputs
• Plastic housing with min. 250 CTI rating (PLC2) for demanding applications

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

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

Relay Interface Modules – Single Output SSR

Function:
• Type 38.91 SSR interface module with screwless terminals.
• High switching speed and long electrical life.
• Single pole SSR output – AC or DC switching
• DC or AC/DC input
• 35 mm rail mounting (EN 60715).
• Ideal for PLC and electronic systems.

Features:
• Sensitive DC or AC/DC input voltage
• AC or DC output switching (1 NO)
• Supplied with integral coil indication and protection circuit
• Quick and easy ejection of relay using plastic retaining clip
• UL Listing (certain relay/socket combinations)
• 35 mm rail (EN 60715) mounting
• Screwless terminals

Also Available as Type 38.91.3 with:
• Special input leakage current suppression circuit
• AC or AC/DC input voltage
• AC or DC output switching (1 NO)

Applications:
• Bottling Plant
• Packaging Machines
• Control Panels
• Traffic Light Controls
• Vending Machines
• Programmable Controllers
• Panels for Electrical Distribution
• Labelling Machines

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

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

The Most Powerful High Voltage Relay Up To 1000 V

The HVR10 is a hybrid powerful high end high voltage relay in a compact design. It combines physical isolation of high voltages via an electro-mechanical contact and state-of-the-art semi-conductor technology.

The hybrid, arc-free switching system allows reliable disconnection, even in the event of an overload, of up to 2 megawatts – 2,000 A/ 1,000 V. The HVR10 withstands high short circuit currents up to 5,000 A until the fast HV-fuse trips. The fist-sized unit can switch and permanently process 300 A at 900 V up to 50,000 times, arc-free and wear-free. The innovative self-monitoring function immediately signals critical operating conditions to the controlgear.

Features:
• Continuous current capacity of 300 A at 25 °C or 250 A at 85 °C.
• The rupture capacity of up to 2000 A at 1000 V is valid for both current directions without restrictions. It is therefore possible to lead even high charging currents over the relay.
• Very low current consumption in the ON condition of typically 0.2 W (12 V * 18 mA) due to a bistable drive, which only draws power from the supply when the switching status changes.
• For a short period of time, the HVR10 can carry up to 5000 A (25ms) and facilitates the co-ordination with a suitable HV fuse.
• The switching status of the mechanical contact system as well as the current rise upon switch-on operation is continuously monitored. This allows information of the control unit about critical operating conditions.
• The hybrid switching concept uses an electronic bypass that successfully suppresses the arc, thus significantly reducing the thermal load of the mechanical contact system.

Benefits:
• Reliable disconnection even in critical conditions up to 2,000 A at 1,000 V
• High protection of the on-board electrical system through integral fault detection and indication
• Long life span through low-arc switching operation

Applications:
• All utility vehicles, e.g. buses, trucks, construction machinery, specialty vehicles with electrical power train, mining vehicles etc.
• Voltages beyond the 450 V system voltage, charging stations, power storage and main relays in the vehicle

Standards:
• ISO 16750
• IATF 16949
• ECE R10

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

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