Finder’s popular low profile relay range has now been extended for use with AC supply voltages. The new 24VAC and 230VAC versions of the 41 Series are ideal where the use of a DC supply voltage proves unsuitable, or would incur additional cost.
Available in single and 2-pole contact versions, with rated switching currents of 8A and 16A, the 15.7mm high relay will find useful applications in electronics, control panels, machine and factory process control systems—particularly where space constraints place limits on height.
With a rated coil power of 0.9VA, the low consumption promotes energy saving, and the cadmium-free contact materials conform to current and future REACH and WEEE directives. It also features RTII environmental protection, making it flux-proof for automatic flow soldering.
The 41 Series low profile relay can be mounted directly onto the pcb, or into a pcb socket. It can also be used with a range of 35mm rail-mounted sockets, with screw or screwless terminals – all available with EMC suppression modules and with the option of a time-saving jumper link.
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When safety is paramount and required to conform to increasing amounts of new legislation, Finder’s 7S Series forcibly guided contact relays offer a competitively priced and compact solution for designers and engineers who require confirmation of the functional integrity of critical circuitry.
Class A forcibly guided contacts rated at 6A, 250VAC and conforming to EN50205 requirements, make the 7S Series suitable for many safety related applications.
The screwless terminals allow for quick, vibration-resistant connections, and the availability of 2, 4 and 6 pole versions makes the relays suitable for a wide range of uses in machine and plant control systems and energy generation, as well as water supply and treatment. Utilizing materials that comply with UNI 11170-3 for fire and smoke characteristics, and meeting the requirements of EN 61373 and EN50155 for mechanical and climatic characteristics also ensure they are suitable for railway applications.
With an operating voltage range spanning 0.7 to 1.25 of nominal, Finder’s new 7S Series tolerates a wide supply variation.
Standard gold-plated or notched crown contacts provide high reliability switching, with a minimum load rating of 60mW.
Meeting the requirements of EN 13849-1 for functional reliability in machines and plant engineering, the 7S Series relays are housed in compact 22.5mm rail mounting enclosures equipped with quick-connect cage clamp terminals and LED coil status indication.
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For installations needing duplicate equipment sets, for reasons of operational security or to meet peak loading demands, Finder has introduced a flexible multi-function priority change relay, providing convenient control of main and secondary systems. Suiting for example, pumping or refrigeration applications, the 72.42 relay has been designed to alternate the duty of two sets of equipment to ensure even wear over time.
The relay can be configured to alternate the output duty either on successive applications of the supply voltage or via an independent input control signal. The 72.42 relay also provides a second input enabling both outputs to be forced on in response to a peak demand or an alarm signal.
To minimise any switch-on current surge, the 72.42 relay incorporates an adjustable output delay timer, supporting for example the staggering of pump motor starts. In addition, where maintenance of either equipment set is needed, the relay will ensure that only the healthy equipment set is made available.
Available in 24V and 110V to 240V AC/DC versions, the 72.42 relay supports a wide supply range and with two independent NO output contacts rated at 12A, 250VAC, is capable of directly switching single phase motor loads up to 0.55kW. Output status is shown by dual LED indication.
Finder’s priority change relay is provided in a 35mm wide housing and is designed for 35mm rail mounting (EN60715). The relay terminals are screw type and the unit’s protection category is IP20.
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With a host of design features to improve both reliability and efficiency, the 78 Series of switched mode power supplies from Finder gives control system builders a stable and dependable low voltage DC supply. 91% efficient, and drawing only 0.4W in standby, this series of modular, rail mounted DC power supplies comprises 24VDC, 36W; 24VDC 60W and 12VDC, 50W output variants that support universal AC or DC supply ranges, respectively 100-265VAC and 140-370VDC.
Integrating the latest protection technologies, the 78 Series includes: thermal protection with fast output voltage shutdown; short circuit protection with ‘hiccup’ (auto-recovery) mode and overvoltage (varistor) protection. In addition, the power supplies’ high inrush current handling capability means they 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. Able to be interconnected in either dual (bi-polar) or series configuration, multiple 78 Series power supply outputs can also be ORed using standard diodes to support both manual and automatic redundancy schemes, further augmenting control system reliability.
Measuring only 70mm wide and 60mm deep, these highly compact 35mm rail mounted power supplies can also help to reduce control panel size. Qualified to EN60950-1 and EN61204-3 normes, they are fully compliant with global EMC standards for power supply design.
Click on the Link Below to access Finder 78 Series Information
Finder 78 Series - Switch Mode Power Supplies
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Crydom are pleased to announce the availability of the new Selector for AC Motors which has been developed to support the application of Solid State Relays (SSRs) and Solid State Contactors (SSCs) into the AC Motors market segment. Intended to assist in matching a SSR or SSC to single-phase and three-phase motors, this web based tool is focused on using relevant ratings from the motor load to select a Crydom part number with suitable UL ratings.
Click on the Link below to access "Selector for AC Motors"
http://www.crydom.com/en/Products/Selector_Motor.shtml
Features of the Selector for AC Motors include:
* Navigation through the tool using intuitive menus
* A list of selected Crydom part numbers is suggested after entering Operating Voltage and Horse Power Ratings for the motor under application
* Links to view datasheets for listed part numbers
* Links to check available Distributors’ stock for listed part numbers
* Option to print out listed part numbers
* Option to “copy and paste” listed part numbers
The Selector for AC Motors is a web based tool and it is currently available at the Crydom website under the Products menu. It is important to notice that all part numbers given by the selector are considered as active, no legacy or obsolete parts are included. Moreover, only part numbers bearing UL 508 approved ratings as Motor Controllers are included.
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Finder has announced the introduction of a pair of panel thermostats designed to maintain constant temperature levels in control panels and enclosures. Suiting the needs of both simple and sophisticated heating and ventilation systems, the 7T Series thermostats help to improve component reliability and preserve instrumentation accuracy through enhanced temperature setting and control.
With red or blue temperature setting dials to clearly identify the heating and ventilation variants, the 7T thermostats are IP20 rated and come in slim 17.5mm rail mounting housings, ensuring easy installation and usage in compact panel designs.
A temperature setting range of between 0 and 60ºC makes them suitable for a wide range of environments, while their snap action bi-metallic sensor means a positive switching action and a long electrical life (100,000 cycles). The thermostats’ output contact (normally closed for heating control, normally open for ventilation control) is rated at 250VAC, 10A, enabling them to directly switch heater or fan loads up to 2500VA AC1 and 250VA AC15.
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Crydom, a brand of Custom Sensors & Technologies (CST) and global expert in solid state switching technology, has expanded its Series H1 of high voltage AC output Solid State Relays.
Complementing the successful Crydom Series H1 1200 Volt Blocking models, the new models now offer even higher levels of breakdown voltage and noise immunity (>1600 volts) for applications in installations where electrical transients are common and might otherwise damage less robust SSRs. The new Crydom Series H1 models include AC output ratings up to 90 amps at 660 VAC, with available control voltage of 4 to 32 VDC.
The Series H1 1600 Volt Blocking models feature 4000 VAC optical isolation, optional LED input status indicator, optional installed thermal pad and are available in either Zero Voltage or Random Turn-On versions. Crydom offers a variety of accessories for the Series H1 including a plastic touch safe cover, terminal lugs accepting up to 1 AWG wire, heat sinks rated from 5.0 to 0.5 °C/W, and mounting hardware kits. The Series H1 is UL and cUL recognized, RoHS and China RoHS compliant, and CE certified to the EMC and Low Voltage Directives.
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Finder has announced the introduction of a range of eight modular, 22.5mm wide rail-mounted timers designed to provide a complete range of timing functions, while keeping part number holdings to the absolute minimum. The multi-voltage 83 Series of multi-function and mono-function timers handles 14 different timing functions, with time scales between 0.05 seconds to 10 days and offers either single or double pole variants.
To maximise flexibility the timers support a very wide working voltage range, from 24V through to 240V AC or DC, making them suitable for mains or low voltage AC operation as well as DC battery supplies. With changeover contacts rated for 16A, the 83 Series is capable of switching AC1 loads of up to 4KVA or single phase motors up to 0.5kW. For easy maintenance, both flat blade and cross head screw drivers can be used to adjust the range and function selectors, the timing trimmer and to disengage the rail mounting clip.
The single pole 83.01 and double pole 83.02 multi-function timer variants both offer up to 8 different timing functions, including a special watchdog function allowing users to monitor repeating processes by resetting the time period each time a “watchdog” pulse is received, with the continuous presence or absence of a pulse beyond the set time triggering the release of the output contacts.
The 83.02 timer also provides the facility of external potentiometer time setting, enabling the timer to be adjusted from the front of control panel or enclosure, whilst assuring the security of timer function and time scale settings. In addition, to further maximise flexibility and minimise part number stocking, it also offers users the option to select between either 2 timed or 1 timed and 1 instantaneous contact.
The third multi-function timer in the series, the 83.91 provides 4 asymmetrical flasher timing functions: starting pulse on; starting pulse off; as well as starting pulse on and starting pulse off both with a control signal input allowing timing to be initiated from a remote sensor operating at a voltage other than the supply voltage.
Completing the 83 Series timer range are 3 single pole mono-function timers: the 83.11 for on-delay; the 83.21 for interval; 83.41 for off-delay with control signal; and a pair of 2 pole mono-function timers: the 83.62 for power-off delay (true off-delay) and the 83.82 for star-delta timing function.
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Crydom extends its line of DC Switching Solution SSRs with the introduction of the “PowerPlusDC” Series with ratings up to 100 amps and 400 VDC.
Crydom, a brand of Custom Sensors & Technologies (CST) and global expert in solid state relay and contactor technology, introduces the “PowerPlusDC” Series of DC output SSRs. Complementing its extensive line of both AC and DC output SSRs, the “PowerPlusDC” Series features traditional “Crydom Series 1” panel mounted style SSRs with ratings from 1 to 100 amps, at 1 to 400 VDC in a 40°C ambient temperature. The “PowerPlusDC” Series feature available Logic Compatible Control Inputs of either 4 to 32 VDC or 90 to 140VAC, with standard LED input status indicator.
The “PowerPlusDC” product line features Crydom’s advanced DC switching technology utilizing Low Dissipation Power FETs coupled with a new high speed 2.5 KV Optically Isolated Trigger Circuit that improves performance and delivers fast and efficient Load control in all types of DC switching applications. Housed in the industry standard 45 x 58 mm panel mount package with screw terminals, the “PowerPlusDC” Series is also available with optional IP20 touch safe clear plastic cover, and installed phase change thermal interface pad.
Crydom “PowerPlusDC” SSRs are CE certified to both the Low Voltage & EMC Directives, RoHS & China RoHS compliant, and UL/cUL recognized.
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© E. Preston (Electrical) Ltd 2025.
UK distributor of electrical and electronic components.
