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Solid State Relays

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What is a Solid State Relay / contactor ?

A Solid State Relay or Contactor (SSR or SSC) is an electronic component that switches Power (AC or DC current) to a load circuit and provides electrical isolation between an application’s control circuit and load circuit. It is a competitive technology to Electromechanical Relays (EMRs) and other switching technologies such as Mercury Displacement Relays (MDRs).

Why Use Solid State Switching Technology? Circuit Trigger Switch Control 0 Switching Technology?

  • Long life
  • Quiet operation
  • Minimum electrical noise
  • Low power consumption
  • Shock & vibration resistant
  • Ideal for harsh environments
  • High compatibility with control systems
  • Fast switching

Applications

Although there are literally thousands of individual uses for Solid State Relays and Contactors, most can be categorized into the following applications:

Heating Control This encompasses the largest segment of solid state relay customers. Applications include, but are not limited to: professional food equipment, plastic molding/extrusion machinery, HVAC&R and soldering equipment.

Benefits: Temperature accuracy, long life, no maintenance, safe product & easy to interface. Suitable for heater, fan, blower and valve control.

Lighting Control These applications are usually broken down into three categories: theatrical, warehouse and commercial. Many of the products used in this segment are designed for the specific application.

Benefits: Dimming, silent operation, fast switching, long life, no maintenance, safe product, easy to interface & reduced parts count. Motion Control Includes elevators, lifts, hoists, exercise equipment, conveyor systems, solar, fans, solenoid and valve control. Benefits: Endurance, shock & vibration resistance, Soft Start, reversing, no arcing, fast switching, long life, no maintenance, easy to interface & reduced parts count.

Applications

  • Switching of Heater by Temperature Controller
  • Hot Runner Systems in Plastic Industry
  • Heater applications in Furnace/Oven industry
  • Plastic Processing Machinery, Injection Molding, Blow Molding and Extruder
  • Solder Screen Printers, Solder Wave / Re-flow Machine
  • Solid and Liquid Packaging Equipments and Machinery
  • Medical Equipments
  • Texturising Machinery
  • Printing Machinery
  • Controlling of Infrared Heaters SSRs.


Ratings from 16 to 120 @ 480 VAC

Ratings from 100 to 300 @ 530 VAC

Output is made up by AC switch of SCR

Input Control Voltadge:3-32VDC or 220 VAC

Solid State Relays

Solid State Relays

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Solid State Relays (SSRs) are switching devices consisting of electronic components. The term "Solid State" means that these relays do not incorporate any moving parts in the load switching circuit. When applied properly, Solid State Relays (SSRs) will last millions of cycles due to the fact that no mechanical devices are included in the load switching circuit. The user will experience no arcing problems, and operation will be trouble free , even in polluted envirom- ents (dust, gases, etc.) Furthermore, Solid State Relays (SSRs) increase operating speed thereby providing the possibility of choosing zero or phase angle switching. A Solid State Relay is the solution when the system designer needs to switch loads rapidly.as in all kinds of temperature control applications. Solid State Relays are used extensively in the Plastics, Packaging, Food Processing and HVAC industries and are an excellent replacement for electromechanical relays

Applications:

  • Microprocessor based Controls such as Automatic Vending Machines, etc.
  • Microcomputer Control, Ticket Vending Machines, NC Machine Control
  • For Process Control Systems using PLCs such as Programmable Controls, DCS, etc.
  • Computer Systems
  • Temperature Control Systems such as Microwave Ovens, Heater Control, Lamp Control, Injection Moulding Machines, etc.
  • Motor Control
  • Medical Equipments
  • Uninterrupted Power Supplies
  • I/O modules for NC/CNC Machines
  • Traffic Signals
  • Home Appliances such as Washing Machines, etc.

Salient Features
:
  • Isolated
  • Input: DC / AC Control, AC / AC Control, DC / DC Control.
  • LED Indication
  • Output: Thyristor
  • Zero Voltage Turn on / Random Turn on
  • Input Reverse polarity protected for DC Input Relays
  • Built-In Snubber
  • Chassis or Din Mountable
  • CE Approved

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