Category Archives: Crydom News

Crydom Introduces the "HS Series of Heat Sinks and Solid State Relay Assemblies

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The HS series feature DIN rail and Panel mounted Heat Sinks
rated from 5.0 to 0.5 °C/watt, accepting 1, 2 or 3 industry
standard, single, dual or 3 phase Solid State Relays, and
corresponding SSR Assemblies rated from 10 to 82.5 Amps

Crydom, an operation of Custom Sensors and Technologies (CST) and global expert in Solid State Relay Technology, introduces a new line of Heat Sinks, Solid State Relay/Heat Sink Assemblies and Accessories. Designed with “state of the art” thermal analysis software tools, the Crydom HS series includes heat sinks accepting 1, 2 or 3 industry standard, single, dual or 3 phase SSRs. Designed for DIN rail or panel mounting, models are available with thermal impedance ratings from 5.0 to 0.5 degrees C per watt.

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Combining proven Crydom Solid State Relays with the new HS series heat sinks allows Crydom to offer a variety of standard and adapted “ready to use” Solid State Relay/Heat Sink Assemblies. Ratings from 10 to 82.5 amps are available at either 280 or 600 VAC. Standard features include 3 to 32 VDC input control voltage, zero voltage turn on, and output RC snubber networks. Single, Dual and 3 phase SSR Assemblies are suitable for controlling most heating, motion or lighting loads.

Additional features of the HS series include RoHS compliance, UL/CSA/TUV or VDE approved CE compliant Solid State Relays, accessories including clear plastic touch safe SSR covers for single and 3 phase SSRs, thermal interface pads for single and 3 phase SSR packages, DIN rail mounting kits, and SSR hardware mounting kits.

Crydom also welcomes SSR and Heat Sink adaptations combining not only any standard Crydom Heat Sink and SSR products, but Customer Specific modifications to Heat Sinks, SSRs or Assemblies.

 

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Crydom Introduces The "EVOLUTION DUAL," It's New and Improved Series of Dual AC Output Solid State Relays

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Evolution Dual Output SSRs feature new input and output
termination options and higher output power ratings of up to
50 amps/ 660 VAC per channel for greater power density!

Crydom, an operation of Custom Sensors and Technologies (CST) and global expert in solid state relay technology, introduces a new line of AC output Dual Solid State Relays featuring new IP20 “touch safe” covers and LED input status indicators.

Evolving from Crydom’s successful “D” and “H12” series Dual SSRs, the Evolution Duals offer an improved mechanical and thermal design providing higher capacity outputs and significantly increased power density. Screw termination suitable for rated load currents to 50 amps/ 660 VAC per channel is standard in either “SSR” or “Contactor” configurations. Each AC output channel features high power SCRs with high surge ratings and is available with either zero voltage or random turn on.

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Four different input termination options (pin, locking connector, detachable barriers w/screws, and direct wire) are available with three different input voltage ratings including a wide range 4 to 32 VDC current regulated version. LED input status indicators for both channels are standard.

Evolution Dual SSRs are RoHS compliant, CE certified and have UL and cUL pending recognition.  Optional clear IP20 touch safe covers are available allowing a clear view of the power lead terminations while providing touch safe operation. Crydom’s new Evolution Duals are for use in a wide variety of applications including Heating, Lighting and Motion Control due to its industry standard footprint.

 

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Series D1D & D2D Brings the Addition of 4 New High Power DC Output SSRs to the Crydom Range

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New D1D and D2D series solid state relays add to Crydom’s
already extensive offer for high-current DC applications
such as heater, lighting and motor control

Crydom’s D1D and D2D series of FET output DC Solid State Relays formerly rated up to 40 amps at 100 VDC and 12 amps at 200 VDC, now includes new models rated at 60, 80 and 100 amps at 100 VDC, as well as 40 amps at 200 VDC. The new models which are offered in the industry standard “hockey puck” SSR package, adds to Crydom’s present offer which includes the D06 rated to 100 amps at 60 VDC, D2D & D4D series rated to 12 amps and D5D models rated to 10 amps at 200, 400 and 500 VDC respectively.

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The new D1D relays feature a low on-state resistance FET output capable of carrying 60, 80 or 100 amps when the SSR is mounted on an appropriately rated heat sink. Likewise, the new D2D40 features a similar FET design rated to 40 amps with appropriate heat sink. Control for these Crydom DC output SSRs is by a transformer isolated 3 to 32 VDC logic compatible input providing 2500 VAC input to output isolation. The outputs are diode protected and specified to operate up to 1 kHz. 

Crydom DC output SSRs are ideal for heating and lighting control as well as motor control in commercial, industrial, medical, aerospace, rail and automotive applications.

 

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Crydom Introduces the RHP, It's New Line of High Power Hybrid Solid State Contactors

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Crydom has combined solid state and mechanical switching
technologies to create a contactor with longer operational life
than standard EMR’s in an industry standard package!

Crydom, global expert in solid state relay technology, introduces a new line of high power Hybrid Solid State Contactors for use in Heating and Lighting applications where Mercury Displacement Relays have previously been applied, and where life cycle constraints limit the use of Definite Purpose Contactors.

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Mounting identically to a standard 3 phase DP (Definite Purpose) contactor, and featuring full load life cycle ratings of greater than 2 million operations, the new RHP line includes 3 phase contactor configurations rated at 120, 240, 280 or 600 VAC at 40 or 50 amp load ratings per phase at 65 degrees C ambient temperature. Control voltages of 24, 120 or 220 VAC, and unique logic compatible 5, 12 or 24 VDC input control options are offered. The RHP line is UL and cUL approved and CE certified.

The RHP line incorporates Crydom’s proven Hybrid SSR technology that utilizes contactless Solid State Relay turn on and turn off performance, coupled with the very low on state power dissipation characteristics of contactors, thus eliminating the need for heat sinking. The higher power switching capabilities of the new RHP line means that in those applications where Mercury Displacement Relays are no longer welcome, the OEM manufacturer now has a cost effective alternative available. Similarly, in applications where contactor life cycles are a limiting or maintenance cost concern, the new Crydom RHP Contactor provides significantly longer operational life capability in an identical mounting package.

 

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Crydom (Solid State Relays) Solutions for Motor Control

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Crydom Solid State Relays (SSRs) are widely used in applications where controlling different types of motors is necessary. They are used for AC motor speed control, motor reversing, starting motors, soft starting and soft stopping of motors, motor starting switches of both single phase and three phase motors.

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Crydom SSRs are also used to control DC motors.  DC relays can be used as a switch, for reversing DC motors, or using PWM (Pulse Width Modulation) for DC motor speed controls.

 

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Crydom (Solid State Relays) Solutions for the Medical Industry

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Crydom Solid State Relays (SSRs) are utilized in numerous medical applications. Crydom SSRs are used to control motors in hospital beds, examination tables, and rehabilitation equipment. SSR’s are also widely used for heating controls in sterilization equipment, blood warming units, and incubators.

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Since Crydom SSRs utilize silicon for switching loads and therefore have no contacts that arc, contact contamination and the danger of sparking are eliminated. Coupled with an epoxy-filled encapsulation, the Crydom SSR is resistant to steam and other sterilization techniques.

The recent introduction of the Crydom MC series of SSR/controllers is an all in one solution that includes both a controller and a Crydom SSR in one package to control temperature, phase control, or soft start, soft stop functions.

 

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Crydom Becomes The First Solid State Relay Manufacturer To Get UL Certification For 100kA Short Circuit Current Ratings

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October 25, 2007 – Crydom, an operation of Custom Sensors & Technologies (CST), announces the first solid state relays available on the market with UL approved short-circuit current ratings (SCCR). These relays facilitate industrial control panel builders’ efforts to comply with the new article 409 from NEC and the latest version of UL508A, both request SCCR marking, by providing them with pre-approved ratings for SSR/fuse combination.

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According to Dr. Oscar Montero, from the Crydom Global Technical Center, “Standard 5kA SCCR on power devices prevents panel builders from offering panels with higher ratings. Panels with a higher SCCR could be connected to electrical systems with different available currents bringing market advantages for panel builders. However, establishing a higher SCCR may represent significant challenges and additional costs for panel builders.”

Crydom’s approved ratings allow panel builders to establish the SCCR for the branch circuit where the relay is located without performing additional testing. The ratings can be added directly to the manufacturer’s procedure. Hence, effectively reducing the time-to-market cycle for the panel and cost associated to compliance.

Crydom has obtained UL approval for SCCR by testing the combination SSR/Fuse under the “umbrella fuse” requirement allowing more flexibility to Crydom customers to mix and match SSR and fuses of different ratings.

 

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Crydom PCB Mount Solid-State Relays

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Big Power in a Small Package!  Crydom PCB Mount Solid-State Relays Reduce Panel Space Requirements While Maintaining Power Capabilities

Crydom, an operation of Custom Sensors & Technologies (CST) and North American Leader in solid state relays, announces the most extensive line of standard and custom PCB mount power solid state relays available to the European and Asian markets. These relays offer ratings from 1 amp to 25 amps (forced air) at line voltages up to 660Vac., which makes them ideal for literally hundreds of commercial and industrial switching applications. Their compact design is also well suited for high-density PCB applications. Moreover, these relays contain no moving parts, which provides for silent operation and life expectancies at full-load current in excess of 50 times most electromechanical relays.

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These compact solid state relays are ideal for use in numerous commercial & industrial applications, including: electromechanical relay replacement, pump control systems, gaming equipment, vending machines, security systems, medical equipment, solenoid control, packaging equipment, printing machines, and much more.

Versions are available with either a zero-crossing (resistive loads) or random turn-on (inductive / phase control loads) output. UL Recognition, CSA Certification, VDE Approval, and CE Compliance available on most models.

• Ratings up to 25A (forced air) @ 660V AC
• SCR output for heavy industrial or commercial loads (most versions)
• Available in standard in-line, mini in-line, or dual in-line packages
• Life expectancy in excess of 50x typical electro- mechanical relays at full-load current
• No moving parts eliminates all acoustical noise
• Not sensitive to magnetic fields
• Custom models available upon request
• RoHS Compliant

 

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Crydom (Solid State Relays) Solutions for Lighting Industry

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Crydom Solid State Relays (SSRs) are utilized in the lighting industry in a wide range of applications. Beside the obvious on-off supply control, or for the remote power switching points for centralized automated control, Crydom SSRs find widespread use in high power dimming systems for theatrical, industrial and residential applications, as well as airport lighting controls, parking lot lighting, safety lights and energy saving systems for commercial and industrial lighting.

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The Crydom MCPC series of microprocessor based proportional controller/SSR modules significantly reduce the amount of design effort and components required to incorporate phase angle dimming control in lighting systems while improving reliability and life.

 

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Crydom (Solid State Relays) Solutions for Heating Industry

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Crydom Solid State Relays (SSRs) are widely used in the heating industry. By specifying the Random Turn-on versions, Crydom SSR’s can be used as proportional controllers for varying power to resistance type heaters. Applied in a more basic way, when used in conjunction with “on-off” style temperature controllers, Crydom SSRs can be used as a power cycling switch without concern for contact arcing, burning, or the resultant reduction of life expectancy.

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With the wide range of SSR types available, Crydom relays can be selected and used to control Quartz lamp, ceramic, infrared, CalRod, cartridge, immersion, strip, and band type heaters among many others. In addition, SSR’s can control fuel valves, blower motors, damper motors, and serve as the interface between thermostats and their primary equipment.

The Crydom MCTC Series of micro-controlled SSR/temperature controllers can be used as a stand alone temperature controller where a compact, low cost solution is required. The MCTC eliminates the need for a separate controller and SSR assemblies, by combining both into one standard size SSR package.

 

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