
United Electric J400K-455 Pressure Switch
The United Electric J400K-455 is a professional-grade differential pressure switch engineered for precision threshold detection in demanding industrial and HVACR environments. This SPDT pressure switch features an adjustable range of 5 to 80" WC, providing versatile setpoint control for monitoring air or liquid differential pressures. Built into a rugged NEMA 4X enclosure with an epoxy-coated diecast aluminum finish, the J400K-455 is designed to withstand harsh process conditions while maintaining consistent repeatability of 1%. The internal wetted materials, including a Buna-N diaphragm and aluminum pressure connection, ensure compatibility with a variety of non-corrosive media. Contractors rely on the UE 400 Series for its reliable 15A electrical rating and dual-conduit capability, streamlining wiring and installation. With an internal hex screw adjustment, technicians can dial in specific thresholds for critical alarm or shutdown functions in pumps, turbines, and complex HVAC ventilation systems without requiring an external reference dial.
Key Benefits- Enhanced Durability: The NEMA 4X housing provides superior protection against moisture, dust, and corrosive vapors in industrial process areas.
- High Switching Capacity: Standard 15A rating at 125/250/480 VAC permite direct control of motors or high-load signaling devices.
- Precise Differential Control: An adjustable range from 5 to 80" WC allows for fine-tuning system setpoints in low-pressure applications.
- Reliable Monitoring: Features a Buna-N diaphragm for stable performance and consistent response to pressure variations.
- Easy Field Integration: Standard 1/4" NPTF pressure connections and 3/4" NPT electrical conduits simplify HVACR system integration.
What is the maximum proof pressure for the J400K-455?
The unit is designed with a proof pressure of 225 PSI to protect the internal sensing element from system surges and unexpected pressure spikes.
How is the setpoint adjusted on this model?
The United Electric J400K-455 uses an internal hex screw for setpoint adjustment. Technicians must remove the cover to access the setpoint screw for a more tamper-resistant configuration.
Can this switch be used for air and water applications?
Yes, the Buna-N diaphragm and aluminum wetted parts are ideal for air, water, and various lubricants, provided the media is compatible with these materials.
This item is not eligible for free shipping.
Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.
Original: $601.74
-65%$601.74
$210.61United Electric J400K-455 Pressure Switch
The United Electric J400K-455 is a professional-grade differential pressure switch engineered for precision threshold detection in demanding industrial and HVACR environments. This SPDT pressure switch features an adjustable range of 5 to 80" WC, providing versatile setpoint control for monitoring air or liquid differential pressures. Built into a rugged NEMA 4X enclosure with an epoxy-coated diecast aluminum finish, the J400K-455 is designed to withstand harsh process conditions while maintaining consistent repeatability of 1%. The internal wetted materials, including a Buna-N diaphragm and aluminum pressure connection, ensure compatibility with a variety of non-corrosive media. Contractors rely on the UE 400 Series for its reliable 15A electrical rating and dual-conduit capability, streamlining wiring and installation. With an internal hex screw adjustment, technicians can dial in specific thresholds for critical alarm or shutdown functions in pumps, turbines, and complex HVAC ventilation systems without requiring an external reference dial.
Key Benefits- Enhanced Durability: The NEMA 4X housing provides superior protection against moisture, dust, and corrosive vapors in industrial process areas.
- High Switching Capacity: Standard 15A rating at 125/250/480 VAC permite direct control of motors or high-load signaling devices.
- Precise Differential Control: An adjustable range from 5 to 80" WC allows for fine-tuning system setpoints in low-pressure applications.
- Reliable Monitoring: Features a Buna-N diaphragm for stable performance and consistent response to pressure variations.
- Easy Field Integration: Standard 1/4" NPTF pressure connections and 3/4" NPT electrical conduits simplify HVACR system integration.
What is the maximum proof pressure for the J400K-455?
The unit is designed with a proof pressure of 225 PSI to protect the internal sensing element from system surges and unexpected pressure spikes.
How is the setpoint adjusted on this model?
The United Electric J400K-455 uses an internal hex screw for setpoint adjustment. Technicians must remove the cover to access the setpoint screw for a more tamper-resistant configuration.
Can this switch be used for air and water applications?
Yes, the Buna-N diaphragm and aluminum wetted parts are ideal for air, water, and various lubricants, provided the media is compatible with these materials.
This item is not eligible for free shipping.
Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.
Product Information
Product Information
Shipping & Returns
Shipping & Returns
Description
The United Electric J400K-455 is a professional-grade differential pressure switch engineered for precision threshold detection in demanding industrial and HVACR environments. This SPDT pressure switch features an adjustable range of 5 to 80" WC, providing versatile setpoint control for monitoring air or liquid differential pressures. Built into a rugged NEMA 4X enclosure with an epoxy-coated diecast aluminum finish, the J400K-455 is designed to withstand harsh process conditions while maintaining consistent repeatability of 1%. The internal wetted materials, including a Buna-N diaphragm and aluminum pressure connection, ensure compatibility with a variety of non-corrosive media. Contractors rely on the UE 400 Series for its reliable 15A electrical rating and dual-conduit capability, streamlining wiring and installation. With an internal hex screw adjustment, technicians can dial in specific thresholds for critical alarm or shutdown functions in pumps, turbines, and complex HVAC ventilation systems without requiring an external reference dial.
Key Benefits- Enhanced Durability: The NEMA 4X housing provides superior protection against moisture, dust, and corrosive vapors in industrial process areas.
- High Switching Capacity: Standard 15A rating at 125/250/480 VAC permite direct control of motors or high-load signaling devices.
- Precise Differential Control: An adjustable range from 5 to 80" WC allows for fine-tuning system setpoints in low-pressure applications.
- Reliable Monitoring: Features a Buna-N diaphragm for stable performance and consistent response to pressure variations.
- Easy Field Integration: Standard 1/4" NPTF pressure connections and 3/4" NPT electrical conduits simplify HVACR system integration.
What is the maximum proof pressure for the J400K-455?
The unit is designed with a proof pressure of 225 PSI to protect the internal sensing element from system surges and unexpected pressure spikes.
How is the setpoint adjusted on this model?
The United Electric J400K-455 uses an internal hex screw for setpoint adjustment. Technicians must remove the cover to access the setpoint screw for a more tamper-resistant configuration.
Can this switch be used for air and water applications?
Yes, the Buna-N diaphragm and aluminum wetted parts are ideal for air, water, and various lubricants, provided the media is compatible with these materials.
This item is not eligible for free shipping.
Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.












