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UNITED ELECTRIC

United Electric Controls is a manufacturer of industrial pressure and temperature instrumentation, with a history dating back to 1931. The company's product lines include pressure switches, differential pressure switches, temperature switches, and transmitters used in HVACR, industrial process, and OEM applications. United Electric products are known for their robust construction and reliable performance in demanding environments. The brand's portfolio encompasses a range of switch types, including electromechanical and solid-state designs, with pressure ranges from vacuum to thousands of psi and temperature ranges covering cryogenic to high-heat processes. Many models carry CE, UL, and cUL listings, and are available with various enclosure ratings, including NEMA 4X and IP66, for protection against dust and water ingress. 3G Electric supplies United Electric replacement controls, switches, and thermostats to maintenance and procurement teams worldwide. The inventory includes differential pressure switches such as the 24-014 and J21K series, which monitor pressure differences for filter monitoring, duct static pressure control, and air handling unit protection. Also available are pressure switches like the J54-25, H402K-457, 10F15, H100-701, and H400K-457, used to monitor and control pressure in refrigeration, air conditioning, and heating equipment. These devices trigger electrical contacts at set pressure thresholds to protect compressors, pumps, and other critical machinery. The switches feature external adjustment knobs for easy setpoint changes and are designed for panel or surface mounting. 3G Electric provides logistics support and competitive quotes for these products, ensuring that plant engineers and maintenance managers can source the exact replacement parts they need without extended downtime. With a focus on original equipment manufacturer (OEM) compatibility and adherence to industry standards, 3G Electric serves as a reliable source for United Electric components across various industries, including commercial HVAC, refrigeration, clean rooms, and industrial process control. The company's global shipping capabilities ensure that customers receive their orders promptly, regardless of location. By offering a selection of United Electric switches and controls, 3G Electric helps facilities maintain operational efficiency and equipment longevity. Whether replacing a faulty switch or stocking spares, 3G Electric's catalog provides access to genuine United Electric products with the technical specifications required for proper system integration.

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About UNITED ELECTRIC

United Electric Controls is a manufacturer of industrial pressure and temperature instrumentation, with a history dating back to 1931. The company's product lines include pressure switches, differential pressure switches, temperature switches, and transmitters used in HVACR, industrial process, and OEM applications. United Electric products are known for their robust construction and reliable performance in demanding environments. The brand's portfolio encompasses a range of switch types, including electromechanical and solid-state designs, with pressure ranges from vacuum to thousands of psi and temperature ranges covering cryogenic to high-heat processes. Many models carry CE, UL, and cUL listings, and are available with various enclosure ratings, including NEMA 4X and IP66, for protection against dust and water ingress. 3G Electric supplies United Electric replacement controls, switches, and thermostats to maintenance and procurement teams worldwide. The inventory includes differential pressure switches such as the 24-014 and J21K series, which monitor pressure differences for filter monitoring, duct static pressure control, and air handling unit protection. Also available are pressure switches like the J54-25, H402K-457, 10F15, H100-701, and H400K-457, used to monitor and control pressure in refrigeration, air conditioning, and heating equipment. These devices trigger electrical contacts at set pressure thresholds to protect compressors, pumps, and other critical machinery. The switches feature external adjustment knobs for easy setpoint changes and are designed for panel or surface mounting. 3G Electric provides logistics support and competitive quotes for these products, ensuring that plant engineers and maintenance managers can source the exact replacement parts they need without extended downtime. With a focus on original equipment manufacturer (OEM) compatibility and adherence to industry standards, 3G Electric serves as a reliable source for United Electric components across various industries, including commercial HVAC, refrigeration, clean rooms, and industrial process control. The company's global shipping capabilities ensure that customers receive their orders promptly, regardless of location. By offering a selection of United Electric switches and controls, 3G Electric helps facilities maintain operational efficiency and equipment longevity. Whether replacing a faulty switch or stocking spares, 3G Electric's catalog provides access to genuine United Electric products with the technical specifications required for proper system integration.

Common Applications

  • Commercial HVAC — United Electric 24-014 differential pressure switch for filter monitoring and duct static pressure control.
  • Refrigeration — United Electric J54-25 pressure switch for compressor protection and pressure control in refrigeration systems.
  • Industrial Air Handling — United Electric J21K-254 differential pressure switch for fan and damper control in air handling units.
  • Clean Rooms — United Electric J21K-150 differential pressure switch for monitoring pressure differentials between clean and non-clean areas.
  • Process Control — United Electric H100-701 pressure switch for monitoring and controlling pressure in industrial processes.
  • Heating Systems — United Electric 10F15 pressure switch for pressure monitoring in heating equipment and boilers.

Guides & Resources

Frequently asked questions

Common questions about UNITED ELECTRIC from 3G Electric.

What is the pressure range of the United Electric 24-014 differential pressure switch?

The United Electric 24-014 differential pressure switch is designed for pressure-sensing applications in HVACR systems. While the exact pressure range depends on the specific configuration, these switches typically cover ranges from 0.05 to 12 inches of water column or higher, suitable for filter monitoring and duct static pressure control. The switch operates within a temperature range of 30 to 160 degrees Fahrenheit and includes an external adjustment knob for setpoint changes. It carries CE, cUL, and UL listings. For precise range information, consult the product datasheet or contact 3G Electric with your application requirements.

What are the typical applications for United Electric J21K differential pressure switches?

United Electric J21K differential pressure switches are used to monitor pressure differences between two points in HVAC and refrigeration systems. Common applications include triggering alarms or controlling fans, dampers, and filters in commercial and industrial air handling units, clean rooms, and process environments. These switches help maintain proper airflow and protect equipment by detecting clogged filters, fan failures, or duct blockages. The J21K series is available in various pressure ranges and configurations to suit specific system requirements. They are suitable for both new installations and replacement of existing switches.

What are the key specifications of the United Electric H100-701 pressure switch?

The United Electric H100-701 is a pressure switch designed for HVACR and industrial systems. It provides on/off switching at a set pressure point, suitable for monitoring or controlling pressure in compressors, pumps, and other equipment. The switch features a robust enclosure and is available with various pressure ranges and electrical ratings. It is typically used in applications requiring reliable pressure control, such as refrigeration, air conditioning, and heating systems. The H100-701 may include options for adjustable setpoints and different process connections. For detailed specifications, refer to the product datasheet or contact 3G Electric.

Are United Electric pressure switches compatible with refrigeration systems?

Yes, United Electric pressure switches are commonly used in refrigeration systems to monitor and control pressure. Models such as the J54-25, H402K-457, and 10F15 are designed for refrigeration, air conditioning, and heating equipment. They trigger electrical contacts at set pressure thresholds to protect compressors and other components from overpressure or underpressure conditions. These switches are available with various pressure ranges and electrical configurations to match specific refrigerant types and system requirements. When selecting a switch, consider the refrigerant, pressure range, and environmental conditions. 3G Electric can assist in identifying the correct replacement.

What is the difference between a pressure switch and a differential pressure switch from United Electric?

A United Electric pressure switch monitors a single pressure point and actuates an electrical contact when the pressure reaches a set threshold. It is used for controlling or protecting equipment based on absolute pressure. A differential pressure switch, such as the 24-014 or J21K series, monitors the difference between two pressure points. It is used in applications like filter monitoring, where it detects the pressure drop across a filter, or in duct static pressure control. Differential switches are essential for maintaining proper airflow and detecting blockages. Both types are available from 3G Electric with various specifications.

What certifications do United Electric switches carry?

Many United Electric switches carry CE, cUL, and UL listings, indicating compliance with applicable European and North American safety standards. These certifications cover specific models and configurations. For example, the 24-014 differential pressure switch is listed as having CE, cUL, and UL approvals. It is important to verify the certifications for the exact model and variant you require, as they may vary. 3G Electric can provide documentation or confirm certification status for the products we supply. Always ensure that the selected switch meets the requirements of your local codes and standards.