The 39 Series MasterINTERFACE, next-generation interface has extended its range with the addition of models featuring “push-in” terminals – the innovative connector system which allows the direct entry of solid wires without the need to open the clamp.
As with the screw terminal models, the extended range consists of 5 types, all available with electromechanical relays (1 changeover contact 6 A) or with solid state relays (1 NO 2A at 24 V DC or 230 V AC):
• Master BASIC (code 39.01 relay, 39.00 SSR)
• Master PLUS (code 39.61 relay, 39.60 SSR)
• Master INPUT (code 39.71 relay, 39.70 SSR)
• Master OUTPUT (code 39.51 relay, 39.50 SSR)
• Master TIMER (code 39.91 relay, 39.90 SSR)
Each type will be available with the same input voltage versions as the current models with screw terminals, although both screw and push-in types will now offer the following additional versions:
MasterBASIC – with AC 110 ... 125V AC/DC (using new sockets: 93.61.0.125 and 93.60.0.125)
MasterINPUT – compatible with the sensors with current less than 100 mA (using new sockets 93.64.7.024 and 93.67.7.024).
All 39 Series accessories (ie. the output fuse module 093.63, the 093.16 jumper links in Blue, Red and Black, the 093.60 separator and the 093.68.14.1 “MasterADAPTER”) can be used with the new sockets.
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A new range of Solid State Relay modules with 30 A AC switching capability is now available. Housed in a plastic casing with integral aluminum heat sink and of 22.5 mm width, these SSRs feature high thermal efficiency (guaranteeing full load operation without de-rating over an ambient temperature range of -20 to 40 ° C)
Available In Two Different Terminal Versions:
• “Relay” version, i.e. where input and output terminals are on opposite sides - more suited for new installations, where it is easier to achieve greater separation between input and output wiring.
• “Contactor” version i.e. where input and output terminals are adjacent to one another - useful as a replacemenfor other SSR or electromechanical contactors in existing applications.
There Are Also Two Options of Input Voltage:
• Rated input voltage 24 V DC input (range 4 ... 32 V DC)
• Rated input 230 V AC (range 40 ... 280 V AC)
There Are Two Options of Type of Output Switching - Both Rated at 30 A , 400 V AC (range 40 ... 480 V AC):
• “Zero crossing”, suitable for lamp loads
• “Random”, particularly suitable for motor loads
The New Codes Are As Follows:
• 77.31.9.024.8050 “relay” version - input voltage 24 V DC, output Zero crossing
• 77.31.9.024.8070 “contactor” version - input voltage 24 V DC, output Zero crossing
• 77.31.9.024.8051 “relay” version - input voltage 24 V DC, output Random
• 77.31.9.024.8071 “contactor” version - input voltage 24 V DC, output Random
• 77.31.8.230.8050 “relay” version - input voltage 230 V AC, output Zero crossing
• 77.31.8.230.8070 “contactor” version - input voltage 230 V AC, output Zero crossing
• 77.31.8.230.8051 “relay” version - input voltage 230 V AC, output Random
• 77.31.8.230.8071 “contactor” version - input voltage 230 V AC, output Random
The 77 series will be expanded over the next 2-3 months, with additional modular 15 A types and a range of “Hockey Puck” style relays from 25 to 50 A
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Finder's new thermostat, the type 1C.61, with adjustment sliders designed to respond to the need for practicality, simplicity and comfort in the control of room temperature.
Uniquely innovative, the 1C.61 is the first “touch slide” capable of combining the simplicity of a touch screen display with exclusive “guided programming”, with the ease of adjustment of the 24 linear sliders for temperature setting.
The size and design make it unique at only 17mm thick and it is finished in an attractive white cream and grey. The cover, with spring assisted opening and closing, offers protection to the sliders from dust and gives continuity to the aesthetic curves.
The backlit display features large font size and “Dynamic” icons, offering excellent legibility. However, despite the large display and backlight, the advanced electronics of the new 1C.61 cleverly limits the power consumption, extending battery life up to 2 years.
Simple but fully featured: The 1C.61 fully justifies this slogan, since by entering the “setup” an extensive range of advanced features and functionality can be programmed. For example, you can set the time of day to the nearest 15 minutes; the “day” function allows you to program any 1 of 3 modes (Off, Manual, Sliders) for each day of the week. It is possible to make the display show the temperature of an (optional) external sensor, or even make it the main controlling sensor.
Innovative functions can be “set” to fully block changes to the thermostat (under PIN control), protecting all parameters entered including the settings of the sliders. Alternatively, a simple lock against the effect of accidental or malicious touching of the display buttons can be selected. The possibility of calibration to align the display to the perceived temperature is also an option. A remote contact can be employed to alter the operation of the thermostat by forcing the output switch off manually or allowing it to follow the normal program. In case of difficulty the Reset function will restore all the factory settings, returning the product to “as purchased” state. Finally, the manual timer (or vacation) setting has been simplified by adopting the concept of a “calendar”, whereby setting the time and date of the return from holiday ensures the thermostat will automatically return to the conditions of automatic programmed temperature control.
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Finder has expanded its range of solid state relays to include high current ‘hockey puck’ style relays, offering rapid cycling and near infinite switching capability.
The new 77 Series relays are ideal for use where applications require the control of exceptionally high inrush current demands, such as in LED and other low-energy lighting, switch-mode power supplies, building control, and motor switching.
With a sealed construction and no wearing parts, they are less sensitive to environmental factors such as mechanical shock, vibration, humidity and external magnetic fields, providing an increased lifetime of the relay.
Finder’s ‘hockey puck’ relays are electronically clean with low emissions, no contact bounce, and no electrical arcing—making them suitable for sensitive environments. The silent operation makes them ideal for residential and commercial usage.
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For applications where high current loads need to be switched but power is limited, Finder’s 67 Series 50A, high capacity PCB relay efficiently minimises coil power dissipation.
The relay has a high continuous current contact rating of 50A, and peak current of 150A (5msec), providing two and three pole NO double break contacts.
Developed for inverters with DC inputs up to 1500V and AC outputs up to 690V, and with a 3mm or 5.2mm contact gap according to VDE 0126-1-1, EN 62109-1 & 2 regulations, the 67 Series satisfies the arduous requirements of equipment designed to meet the increasing demand for solar energy, particularly in remote locations and at high altitudes (up to 4000m above sea level).
The relay is also suitable for use in photovoltaic inverters, battery-operated or portable systems, domestic appliances and for 3 phase motor loads up to 7kW.
The Energy Saving Mode feature allows for coil operation in ambient temperatures up to 85C with minimum holding power of just 0.17W
The added air circulation provided by the 1.5mm stand-off between the relay and PCB aids temperature regulation.
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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 2000 W halogen, 750 W compensated fluorescent, 200 W CFL or LED lamp loads and AC15 loads up to 750 VA.
The integral back-up battery, which is easily replaceable from the front, features an automatic power save mode which helps extend battery life.
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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.
The AC/DC coil with varistor protection has a virtually silent operation, thus is suitable for residential, hospital, hotel and commercial installations.
The new 22.44 and 22.64 models use AgSnO2 contact material capable of handling maximum peak currents up to 240A, making them particularly suitable for high inrush current loads such as electronic lighting ballasts.
Equipped with 4-pole, 3mm gap, double break contacts in multiple configurations, specifically 4NO, 3NO + 1NC and 2NO + 2NC, rated up to 5000W for incandescent or halogen lamp loads and 15kW for 3-phase motor loads, these units are ideal for heavier commercial applications including single and 3-phase pumps and motors used in heating and ventilation systems.
Protective separation between coil and contacts provides reinforced insulation for safety, as required by many domestic and commercial standards/codes of practice.
Fitted with a mechanical indicator for visual operational status the 22 Series provides a compact, quiet, high power multi-pole switching solution for all areas of residential and commercial, services, and industrial sectors.
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Joining the well established 78 series of switch mode power supplies from Finder, the 78.50 now features ‘foldback’ overload protection. This has been introduced to address market demands by extending application coverage to include lead acid battery charging – not compatible with the ‘hiccup’ mode of protection featured on the rest of the range. As with the rest of the range, it shares a plethora of design features to improve both reliability and efficiency, giving control system builders a stable and dependable low voltage DC supply, up to 91% efficient, and drawing only 0.4W in standby.
This series of modular, rail mounted DC power supplies now comprises models covering outputs rated 24VDC/12W, 24VDC/36W, 24VDC/60W, 12VDC/12W and 12VDC/50W – all supporting a wide AC or DC supply range capability of respectively 100-265VAC and 140-370VDC.
Integrating the latest protection technologies, the 78 Series includes: supply overvoltage (varistor) protection, thermal protection with fast output voltage shutdown; short circuit and overload protection with ‘hiccup’ (auto-recovery) protection – except the 78.50 with ‘foldback’ overload protection. In addition, the high inrush current handling capability means the power supplies will safely tolerate loads with high current transient characteristics, such as capacitive circuits and solenoids fitted with ‘economy’ resistors.
To help minimise downtime in the event of a fault, the power supply inputs are protected by an easy access internal fuse, with an adjacent spare fuse ensuring an even more immediate fix.
Measuring only 17.5 or 70mm wide by 60mm deep, these highly compact 35mm rail mounted power supplies can also help to reduce control panel size. Conforming to EN60950-1 and EN61204-3 norms, they are fully compliant with global EMC standards for power supply design.
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Based on new innovative electronics and optics Finder has added 3 new application-specific movement detectors to its 18 Series range.
Specifically for sensing within larger rectangular areas such as hotel lobbies and long corridors, the 18.41 surveys an area up to 15 metres either side of the device, giving an extensive total detecting zone of 30 metres long by 4 metres wide, from just a single unit.
Central to the 18.51 is an advanced lens and electronics system that achieves two detecting zones with different sensitivities. The central 4 x 4 metre zone responds to very small movements, able for example to pick-up on the presence of a person quietly working at his workplace. But additionally, within an extended 8 x 8 metre zone, it will also respond to normal movements. This product is particularly targeted at offices, schools, and the workplace in general.
“Twin-Mirror” technology gives the 18.61 its exceptionally wide viewing angle of 180°. Specifically designed for fitting into new or existing wall boxes, the 18.61 can be installed in corridors along with the 18.41 but is equally suited to small spaces such as bathrooms or passage areas. Essentially it can be installed as a direct replacement for a wall mounted light switch or push-button.
All three models share the common characteristics of a wide 110 ... 230 V AC power supply range, a 10A rated NO output contact, adjustable ambient light intervention threshold and a Light-Off delay adjustable from 12 to 35 minutes.
Depending on the type, these new products can be installed on the ceiling, in suspended ceilings or in recessed or flush mounting boxes.
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Finder’s 77 Series “single pole” solid state relays are now available in eight new versions, with a 30A current rating to complement the existing 5A models.
With distinct models for zero-voltage and instantaneous switch-on, the former is particularly suited for lighting control where zero-voltage switching can significantly reduce high inrush currents. Instantaneous switch-on provides near instant switching for high speed operation and simultaneous switching in multi-phase circuits, such as three phase motors.
The very high inrush current capability of 520A (10ms) ensures reliability over a long life in a wide range of applications, particularly the switching of lighting where power factor compensation and electronic ballasts have historically been problematic – but it is also ideal for the control of heating, solenoids and motors.
In 22.5mm housing incorporating the heat sink and designed for 35mm rail mounting, the relays are ideal for use in control panels and cabinets in industrial and commercial applications.
Capable of switching single phase motors up to 2.5kW or lamp loads up to 6000W, and with the benefit of silent, high speed switching, they lend themselves to use in a host of environments. Input voltages of 230Vac and 24Vdc.
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© E. Preston (Electrical) Ltd 2024.
UK distributor of electrical and electronic components.