The Barksdale EPD1H-AA40 Differential Pressure Switch with Junction Box functions as dependable pressure monitoring product which operates HVAC systems and industrial applications. This operates between 3 and 150 PSI pressure ranges and handles up to 4A current strength while monitoring pressure variations in air and gas and liquid systems for control purpose. This protect equipment in air handlers as well as pumps and filtration systems while preventing system failures and ensuring efficient operation. This stands out as vital component which ensures both safety and high HVAC system operation through its durable structure and accurate performance.
The Barksdale EPD1H-AA40 stands out as a single-setpoint differential pressure switch equipped with a J-box and 1/8" NPT female ports, providing an ideal solution for applications demanding precise control and dependable performance. Recognized for its robust construction, this switch ensures high reliability, offering durability that stands up to the rigors of various environments. EPD1H-AA40 Barksdale Pressure Switch economic design strikes a harmonious balance between cost-effectiveness and a comprehensive set of features, making it a preferred choice for budget-conscious projects without compromising on functionality. Installation and adjustment are hassle-free, simplifying integration into existing systems, thereby enhancing operational efficiency. With its compact form, accurate control, and user-friendly attributes, the EPD1H-AA40 is a versatile differential pressure switch for diverse industrial applications.
Key features:
Single setpoint: Easy to adjust the activation point with a set-point screw.
J-box: Provides convenient access to the electrical connections for wiring.
1/8" NPT female ports: Standard size for easy connection to pressure lines.
NEMA 4 enclosure: Protects the switch from dust, water, and corrosion.
SPDT (single-pole, double-throw) contact: Can control two separate circuits depending on the pressure difference.
4 amp @ 125/250 VAC electrical rating: Suitable for a variety of low-power applications.
Signs of a Faulty Barksdale EPD1H-AA40 Pressure Switch
Incorrect Pressure Readings:
False alarms: The switch triggers even when the pressure difference is within the normal range.
No alarms: The switch doesn't activate even when the pressure difference exceeds the setpoint.
Inconsistent readings: The pressure readings fluctuate erratically, indicating internal issues.
Electrical Issues:
Tripping circuit breakers: The switch malfunctions and causes electrical overloads.
No power to the switch: The switch doesn't receive power or has internal electrical faults.
Loose connections: Vibrations or wear can loosen wiring within the J-box, causing intermittent operation.
Physical Damage:
Leaks: Visible leaks from the pressure ports indicate internal damage or seal failure.
Corrosion: Rust or corrosion on the enclosure or internal components can affect performance.
Physical damage: Dents, cracks, or other damage to the switch can compromise its functionality.
Operational Issues:
Equipment malfunction: The connected equipment controlled by the switch doesn't function properly due to incorrect pressure signals.
System inefficiency: The system operates outside its optimal pressure range, leading to reduced performance or safety hazards.
Additional Clues:
Unusual noises: Clicking or buzzing sounds from the switch could indicate internal problems.
Burning smell: A burning smell from the J-box suggests electrical overheating.
Similar Models:
EPD1H-AA40, EPD1H-BB40, EPD1H-AA3, EPD1S-AA40
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