DRML1, Crydom’s Load Monitoring Module designed to detect partial or total load failure
of up to 8 loads and 50 Amps
Crydom introduces the DRML1 Load Monitoring Module, specially designed for NOVA22 solid-state relays which allows to monitor up to 8 heating elements, with similar current value, for a total current ranging from 1.2 Amps up to 50 Amps.
The DRML1 module measures the current value and compares it against a pre-set value (Teach value), which is stored during installation. Normal operation is monitored and failures are detected. An alarm is activated when the module detects undercurrents in the heating circuit below -12.5% of the nominal current. The module allows also for other alarm conditions to be detected such as: overcurrent condition (when the current exceeds the maximum of +12.5% of the nominal current), blown fuses (open load), damaged (short circuited SCR) and interrupted SSR, as well as those in half-wave operation. The nominal current value (Teach value) is set by the operator either with the "Teach-In" push button, placed on the front, or with the external “Teach-In” input.
The new DRML1 Load Monitoring Module offers three unique features in the market. It allows the user to select the maximum current value of 20 Amps or 50 Amps, operates with a minimum partial load detectable value of 150 mA and includes an adjustable alarm response delay (0.1 sec, 1 sec or 5 sec), selectable via a parameter selector switch. This avoids fault messages generated by voltage drops.
Malfunctions are indicated by a multicolor LED and can be localized systematically thanks to the alarm output which allows up to 128 DRML1 modules to be connected to a collective alarm. The LED indicates when power is ON and also when the Teach-In function is activated (Blue), when the input signal is ON (Green) and when an alarm condition is activated (Red).
The DRML1 is designed for direct installation on NOVA22 Solid State Relays contactor configuration versions (both Panel Mount PM22 Series and DIN Rail Mount DR22 Series models). The plastic enclosure provides IP20 level protection.
DRML1 can be used in different applications but its key advantages make it ideal for quality supervision of plastic parts production in injection molding machines, thermoforming machines and rubber parts production.
Main features include:
- Up to 8 loads can be monitored
- Selectable max current rating: 20 Amps or 50 Amps
- Selectable alarm delay (0.1 sec, 1 sec, 5 sec)
- Minimum current for single load: 150 mA
- Alarms detected: undercurrent, overcurrent, open mains voltage, SSR fault
- Alarm output: PNP open collector, 6-28 VDC, 100 mA
- Up to 128 modules can be connected in parallel
- Operating temperature: -25°C to +70°C
- Pluggable module for both DIN Rail and Panel Mount NOVA22 SSRs
- Multicolor LED with input status and alarm indication
Crydom’s DRML1 Module is C-UL-US Recognized and compliant to IEC 61000-4 (EMC) and IEC 60068-2 (Shock and Vibration) requirements. It’s also CE compliant to the Low Voltage Directive as well as the RoHS Directive.
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Home Page: https://www.epreston.co.uk/epblog/
Announcing the release of the NOVA22 video, a detailed overview of Crydom’s powerful SSR family in the market.
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CRYDOM’S POPULAR MINI-PUCK SOLID STATE RELAY IS BACK WITH MORE POWER & ADDITIONAL FEATURES
The EL Series is Now Available with an Improved Mechanical Design Rated up to 30 Amps and Optional 90° Bent Terminals for Reduced Spaces
Crydom presents the redesigned range of EL Series AC and DC output solid state relays with ratings up to 30 Amps, making it the highest current rating SSR in this compact footprint. The EL Series SSR comes in a 21mm x 35mm housing with quick connect terminals, ideal for applications where space is at a premium, such as small commercial and medical machines.
The internal construction and housing of the EL Series has been re-designed for improved reliability, robust mechanical construction and improved thermal performance. Recently added optional built-in overvoltage protection (internal TVS diode) on AC models, as well as a unique optional 90° bent terminals for applications where vertical space is limited.
Other features of the EL Series include:
• Load current ratings of 30 Amps @ 24-280 VAC and 10 Amps @ 3-100 VDC
• Back-to-back SCR output with low off state leakage current (AC models)
• Low dissipation Mosfet output (DC models)
• Flexible 5, 12 and 24 VDC control voltage options
• Zero voltage or instantaneous turn-on outputs (AC models)
Crydom’s EL Series SSRs are C-UL-US Recognized, TUV compliant according to IEC 62314 (AC output version), CE compliant to the Low Voltage Directive, and RoHS & China RoHS compliant. Additionally, the enclosure and the PCB of the EL Series solid state relays meet the requirements of standard IEC60335-1, which make it an ideal option for demanding applications in the household appliances and professional food equipment.
Enquiry Form: https://www.epreston.co.uk/contact/
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Get a grip on panel installations with Finder’s new MasterIn system of push-in relay interface modules. Finder’s latest advancement provides a high performance, screwless system that allows panel designers and installers to save precious time and money.
When challenged head-to-head, the push-in terminal technology outperformed the conventional installation method— a whopping 80 per cent faster than manual screw drivers, and 25 per cent faster than electric screw drivers.
The MasterIn System also demonstrates better clamping performance under vibration and movement than its screw-in rivals.
Jumper links allow quick connections and separate test points add to the flexibility of the system and are further reasons to choose the new Finder interface range.
The MasterIN System incorporates the existing 39, 48, 4C and 58 Series Finder Relay Interface Modules, and caters for a wide range of applications including industrial automation, building management systems and electrical control panels.
Enquiry Form: https://www.epreston.co.uk/contact/
Home Page: https://www.epreston.co.uk/epblog/
To facilitate greater integration of controls and automation in building services, Finder has expanded its 22 Series modular contactor range to include 4 pole versions rated at 40A and 63A.
Finder’s modular contactor range is an ideal choice for higher current switching in quiet areas. With its virtually silent operation, it’s suitable for residential, hospital, hotel and other commercial installations.
For demanding industrial applications, it features a robust contact design, allowing high inrush capability, making it great for controlling lighting as well as motor loads.
Giving greater integration of controls and automation in building services, it provides a compact, quiet, high-power multi-pole switching solution.
Protective separation between coil and contacts provides reinforced insulation for safety, as required by many domestic and commercial standards/codes of practice.
Enquiry Form: https://www.epreston.co.uk/contact/
Home Page: https://www.epreston.co.uk/epblog/
With the recent reminders of the need to protect against flood water and other detrimental water leakage, Finder has expanded its range of liquid level control relays with the introduction of the 072.11 surface water sensor.
Working in conjunction with a liquid level control relay from the 72 series range, the surface water sensor has been designed to sense water levels as low a 1 mm, making it ideal for a range of applications, from detecting spillage around vending machines in sensitive areas such as computer suites, to the early detection of flood water in the basement or ground floor of a home.
Reinforced electrical isolation between the three circuit elements within the level control relay helps the system designer meet the personal safety required in virtually all equipment standards, and low voltage makes the sensor safe to touch.
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Excellence In Solid State Technology Available In Crydom's DRH Series Of Power Enhanced AC 3-Phase Contactors
Crydom is pleased to announce the new DRH Series of AC Output Solid State Contactors. Based on the same technology and compact 45mm size of the SOLICON DRC, the most innovative compact DIN Rail Mount, IEC standard based contactors in the market, combines all the advantages of a solid state design with the functionality and simplicity of use of an electromechanical contactor.
While the DRC series was intended for motor applications, the DRH Series, thanks to the enhanced power of 20 Amps on each channel, is intended to switch any resistive as well as inductive loads; it is the perfect solution in any heating application in market segments such as Plastic, Packaging, HVAC, Food & Beverage, Printing and Medical. This product is an ideal replacement of electromechanical contactors when higher reliability is needed or when fast cycling is frequent. Their compact size and easy installation make these devices an optimum solution in commercial and industrial applications (e.g. industrial band heaters), especially when retrofitting. Reliable operation is ensured by means of the integrated over-voltage protection, over-temperature protection, high I2t and surge current ratings and immunity conformance to industrial standards.
Main features include:
- Rating up to 600 VAC, 18 A (3 controlled legs), 20 A (2 controlled legs)
- Integrated over-voltage protection
- Integrated over-temperature protection
- Alarm output in case of over-temperature
- Enclosed heat sink eliminates the need for protective earth connection
- 4-32 VDC or 90-280 VAC control input
- Multicolor LED with input status and alarm indication
- UL 100 kA Short Circuit Current Rating
- C-UL-US listed, CE compliant
These features make the DRH Series unique in the market with a broader working temperature range (-10ºC to +70ºC), better resistance to surge current (716 Amps), higher resistance to short circuit (2560 A2sec), smaller size and a greater life span (50 million cycles).
All these premium features are included in both available DRH models:
- DRH3P60x18x, Solid State Contactor 3 controlled legs, 18 Amps @40°C
- DRH3P60x20x, Solid State Contactor 2 controlled legs, 20 Amps @40°C
The DRH Series is available in either instantaneous turn-on (typically used for inductive loads or motor loads) or zero voltage turn-on (more often used with resistive loads). Both are available with either 2 or 3 controlled legs.
The high current rating is the result of an innovative design that increases the air flow thus improving the thermal performance. DRH contactors also feature over-temperature protection to avoid overheating in case of a fan malfunction. The internal temperature is constantly monitored and the fan is switched only when necessary in order to extend its lifetime. The LED makes the operator aware of internal temperature rising before it reaches its limit; once reached, the contactor will safely switch off and the alarm output contact will switch on.
Crydom’s DRH Series contactors are C-UL-US Listed and compliant to IEC 60947-4-2 requirements. They are also CE compliant to the Low Voltage Directive as well as the EMC and RoHS Directive.
Enquiry Form: https://www.epreston.co.uk/contact/
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NOVA22s are 22.5mm DIN rail and panel mount solid state relays with greater power density (up to 95 Amps) and more connection options than any other comparable SSR on the market.
Crydom, the global expert in solid state switching technology, is pleased to announce the new NOVA22 AC and DC output solid state relays. NOVA22 solid state relays are available in both DIN rail (DR22 series) and Panel mount (PM22 series) packages:
NOVA22 solid state relays feature:
* DIN rail models rated up to 35 Amps and panel mount models rated up to 95 Amps
* 22.5mm wide package
* 4-32VDC, 90-280VAC/DC or 18-52VAC/DC input control options
* Relay or contactor configuration
* Innovative “Elevator” screw for easy connection of ring terminals
* LED input indicator
* Overvoltage protection
* Zero voltage or instantaneous turn-on output
* 100kA Short Circuit Current Rating
* Maximum I2t value of 8320 A2sec
These features make NOVA22 SSRs unique in the market, outperforming competing products on each front with a broader working temperature range (-40ºC to +80ºC), and higher resistance to surge current (1290Amps x 20 msec). High I2t models (8320 A2S) allow use of the solid state relay in conjunction with circuit breakers instead of fuses allowing short circuit protection in Type 2 Coordination per IEC 60947-4-1. Contactor configuration models include a plug-in connector for the control input, available in either standard “screw” or “spring” terminals.
The DR22 series is available in either AC output voltage (48 to 600VAC) or DC output voltage (1 to 200VDC). Current rating at standard 40ºC is 20Amps, 30Amps and 35Amps (only for AC output) and high I2t value (8320 A2S), making NOVA22 the only 22.5mm DIN rail mount solid state relay with 35Amps @ 40ºC on the market!
The PM22 series is available with AC output voltage (48 to 600VAC). Current ratings include 25Amps, 50Amps and 95Amps and high I2t value (8320 A2S) making NOVA22 the only 22.5mm panel mount solid state relay with 95Amps on the market! Crydom also offers the new HSP-7 thermal pad available for purchase as an accessory or already assembled on the solid state relay to facilitate installation.
Crydom’s NOVA22 DR22 Series is cULus Listed and PM22 Series is cURus approved according to UL508 standard. AC Output devices are also TUV certified according to EN 62314 standard. Other certifications include; CE compliant to the Low Voltage and EMC Directives and to the RoHS and China RoHS Directives.
Enquiry Form: https://www.epreston.co.uk/contact/
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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.
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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.
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© E. Preston (Electrical) Ltd 2024.
UK distributor of electrical and electronic components.