At TCI Supply, we offer a wide range of industrial HVAC contactors and relays designed to ensure efficient operation in both commercial and industrial settings. Our products are built to handle demanding environments, providing reliable switching performance for HVAC systems. Whether you require specific contact configurations or enhanced durability, our selection of contactors and relays can meet the needs of your application.

Allen-Bradley, Siemens, GE, and Cutler-Hammer (Eaton) contactors are primarily used for controlling electric motors, lighting, heating, and other electrical loads in industrial and commercial applications. These contactors provide reliable switching, motor protection, and overload prevention. End users include industries like manufacturing, oil and gas, utilities, and HVAC systems. They are essential for applications requiring frequent switching and remote control. Typical users include electrical contractors, facility managers, and automation engineers seeking dependable motor control solutions.

Industrial Contactors and Relays FAQ

Can your industrial and commercial contactors and relays be integrated into existing HVAC systems?

Yes, our industrial contactors and relays are designed for easy integration into existing HVAC systems, offering compatibility with a wide range of setups.

TCI Supply offer contactors and relays that are compatible with modern automation platforms such as programmable logic controllers (PLCs), distributed control systems (DCS), and SCADA systems. They typically support standard communication protocols like EtherNet/IP, Modbus, or Profibus, allowing seamless integration into existing setups. Additionally, these products are designed to meet industry standards for voltage, current, and mounting, ensuring compatibility with a wide range of systems in manufacturing, utilities, and process industries.Are your industrial and commercial contactors and relays suitable for use in demanding industrial environments?

Are your industrial and commercial contactors and relays suitable for use in demanding industrial environments?

Absolutely. Our contactors and relays are engineered to withstand harsh industrial environments, ensuring long-lasting performance.
GE, Siemens, and Allen-Bradley offer durable contactors and relays designed for demanding industrial environments. GE contactors are ideal for heavy-duty applications like mining and oil and gas, known for electrical endurance and resistance to mechanical stress. Siemens excels in flexibility and durability, with contactors built for industries like power generation and steel production, featuring arc quenching for reliable switching. Allen-Bradley focuses on high-reliability applications, such as motor control and automation, with long lifespans and resistance to shock and vibration.

What are the contact configurations (SPDT, DPDT, etc.) available?

• SPDT (Single Pole Double Throw): Common in general-purpose relays, used for switching between two circuits.
• DPDT (Double Pole Double Throw): Available in relays for applications requiring control of two independent circuits.
• 3PST/4PST (Three/Four Pole Single Throw): Available in heavy-duty contactors for industrial motor control, typically used in three-phase systems.
• NO/NC (Normally Open/Normally Closed): GE offers relays with NO/NC configurations for various switching needs.

What is the switching capacity and life expectancy of your industrial and commercial contactors and relays?

Our contactors and relays feature high switching capacities and are designed for long operational life, with specifications varying by product model.

• Switching Capacity:
  • Electrical Ratings: Range from 9 to 1,800 amps, with voltage ratings up to 690V. Siemens contactors are typically used in motor control and industrial automation.
  • Horsepower Ratings: Handle up to 700 HP at 480V for motor control applications.
• Life Expectancy:
  • Electrical Life: Rated for 1 to 3 million operations under load, depending on the specific model.
  • Mechanical Life: Can exceed 10 to 30 million operations when not under electrical load.

What are the vibration and shock resistance levels of your industrial and commercial contactors?

Eaton, Schneider, Allen Bradley, and other industrial contactors are built with high resistance to vibration and shock, making them ideal for demanding applications.

• Vibration Resistance:
  • GE contactors are typically rated to withstand up to 5g (gravitational force) of vibration at frequencies between 10 to 500 Hz, depending on the model and application.
• Shock Resistance:
  • They can handle up to 10g of shock for brief periods, suitable for most industrial environments where heavy machinery or motor controls are in use.

Do you provide industrial and commercial contactor and relay sizing calculations?

Yes, we offer resources and support for accurately sizing contactors and relays to ensure they meet your specific application needs.

Contactors, Relays and replacement kits by Allen Bradley, Schneider Electric, Siemens, Square D, Merlin Gerin and more