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Power Switching Devices

Power Switching Devices
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Note: The specifications in the table above are best available values in each category. Not all combinations of these values are available in a single model number. Power Switching Devices

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Power Switching Devices Comparison Guide Initial Cost 3 Year Control Cost ① Life Electromechanical Relay Low for low Highest current Heater EMI Response Life Generation Control Rate Options and Contactor Limited Shortest Yes, coil Poor Slowest None electrical and and contacts mechanical Hybrid Power Switch Low Medium High Good Minimal Good Fast None Mercury Displacement Relay (MDR) To extend life the cycle time is normally extended to 30 seconds or more. Such as Watlow E-SAFE II and NO ARC relays. Medium High Good Yes, coil Fair to Medium None Mercury is not desirable. Low for low to and...

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ASPYRE® Watlow’s ASPYRE® power controller family is flexible and scalable, and available with a variety of options allowing one platform to be re-used across a wide range of applications, which can help save time and money. ASPYRE models available include sizes from 35 to 700 amps. This power controller family features multiple advanced microprocessor-based firing and control mode algorithms. Combined with diagnostics and several communications options the product enables equipment and factory automation. Controller firing modes include zero cross, burst firing, single cycle, delayed...

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• Oil and gas • HVAC • Textiles • Plastics • Packaging • Petrochemical • Dryers and curing Typical Applications • Furnaces and ovens • Autoclaves • Kilns • Heat treatment • Glass industry • Semiconductor • Power generation Specifications Power Bases • Single-phase, 1 controlled leg (2 SCRs) • Three-phase, 2 controlled legs (4 SCRs) • Three-phase, 3 controlled legs (6 SCRs) Load Amp Range • 35A to 700A @ 40°C ambient • Amperage derating curve for other ambient temperatures SCR and Amperage Rating • Latching current 1A min. • Power dissipation: approximate 1.25 to 1.5 watts per amp per...

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Analog Inputs 1 and 2 • Voltage • 0-10VDC • 15KQ impedance • Current • 4-20mA, 0-20mADC • 100Q impedance • Potentiometer • 10KQ min. Analog Output 1 • 0 to 20mA or 4 to 20mA into 500Q max. load with 50piA nominal resolution • 0 to 10VDC into a 500Q min. load with 50mV nominal resolution Analog Output Functions • Retransmit: Load voltage, current, power or measured input (Note: If using both Analog Retransmit (digit 10, options A or D) and Additional Wired Communication (digit 12, options 1-5) an external power supply will be required. Watlow power supply part number: 0847-0299-0000...

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Mounting • Panel mounting with screws • Must be mounted with heat sink fins in vertical orientation Environment • 0 to 40°C without derating • 5 to 90% RH (relative humidity), non-condensing • Up to 2000 meters above sea level max. • Over 1000 meters of altitude reduce the nominal current by 2% for each 100 meters • Storage temperature -25 to 70°C max. Agency Approval and Regulatory • cULus 508 Listed File E73741 • cUL® Listed to C22.2 No. 14 • CE EMC Directive 2014-30-EU, EN 60947-4-3 Class A Emissions • CE Safety Directive 2014-35-EU, EN 60947-4-1, -4-3 • IP20 with all covers in place •...

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Power Switching Devices ASPYRE I/O Functional Block Diagram DC Power Supply Backup Power User Interface • Communications Dry Contact Switches • Potentiometers Analog Input Analog Retransmit User-Selectable Retransmit Parameter 0 to 20mA or 4 to 20mA • 0 to 10VDC • • Power Switching Conﬁguration Software Connection • Data Log File Transfer Conﬁguration • Monitor Operation 1, 2 or 3 Legs Back-to-Back SCR Switching Replaceable Semiconductor Fuses Analog Retransmit 2 Analog Inputs Set Point Feedback • Current Limit • • Power Demand Loop Analog Input Current Limit Loop* 2 Digital Inputs Enable...

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Power Switching Devices ASPYRE Dimensions and Shipping Weight 1-Phase, 1 Controlled Leg

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Ordering Information Base model includes: - power control loop for open loop, voltage, current or power control, two analog inputs (0-10VDC, 4-20mA selectable), two digital inputs, semiconductor fusing and current transformers for each leg, mechanical relay heater break alarm, RS-485 Modbus® communications, pixel OLED user interface and keypad, 10VDC auxiliary power supply Part Number

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EZ-ZONE® ST The EZ-ZONE® ST integrated solid state controller from Watlow®, offers a complete thermal system control solution in a single package. Features include a PID temperature controller connected to a high-amperage solid state relay with the option of adding a properly sized heat sink, an over- and under-temperature limit, a power shut-down contactor and digital communications in one complete and professionally engineered product. Because the system is modular and scalable, a user only pays for what is needed. Stacking the EZ-ZONE ST integrated controller into multiple configurations...

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DIN-A-MITE® A The DIN-A-MITE® A power controller provides a low-cost, highly compact and versatile solid state option for controlling electric heat. This controller is designed and manufactured with the quality features expected from Watlow. DIN-rail and panel mounting is standard on every controller. There is no need to worry about mercury, the DIN-A-MITE controller is mercury free. Features include single-phase zero cross switching up to 25 amperes at 600VAC (see rating curve). A unique integrated design removes the guesswork associated with selecting a proper heat sink and adequate...

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DIN-A-MITE A Specifications Operator Interface • Control input • Input indication LED Amperage • Single-phase, see the output rating curve • Max. I2t for fusing: 4000A2sec • Latching current: 400mA max. • Holding current: 200mA max. • Power dissipation is 1.2 watts per ampere switched • 200KA ScCr, Type 1 and 2 approved with the recommended fusing; see user manual Line Voltage • 24 to 660VAC model number dependent; see ordering information • Off-state leakage: 1mA at 77°F (25°C) max. • 50/60Hz independent Control Mode, Zero Cross • Control option C: VDC input, contactor output • Control...

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