Air Compressor Pressure Switch - 412024-E

Ensure your compressed air system operates safely and automatically with the 412024-E Pressure Switch. This critical control component acts as the "brain" of your air compressor, sensing the internal tank pressure and automatically cycling the motor on and off to maintain your desired air levels. When the pressure drops below a certain point (cut-in), the switch closes the circuit to start the motor; once the maximum set pressure is reached (cut-out), it breaks the circuit to prevent over-pressurization. A faulty switch can lead to a motor that won't start, a compressor that never shuts off, or dangerous pressure buildup.

Built for heavy-duty industrial and workshop use, the 412024-E features a rugged housing and high-conductivity electrical contacts. It includes an integrated unloader valve designed to release trapped air from the compressor head, allowing for easier, load-free restarts that protect your motor from burnout.

1. Safety First: Turn off the compressor, unplug it from the power source, and completely drain all compressed air from the tank by opening the drain valve or pulling the safety relief valve.
2. Disconnect Wiring: Remove the cover of the old pressure switch and carefully disconnect the electrical wires, noting their positions (Line and Load).
3. Detach Components: Use a wrench to disconnect the small unloader tube (if equipped) and the main pressure gauge or air lines attached to the switch manifold.
4. Remove the Switch: Unscrew the old switch from the tank manifold or mounting bracket.
5. Install the New Switch: Apply thread seal tape to the manifold threads and screw the new 412024-E Pressure Switch into place until tight and correctly oriented.
6. Reconnect and Test: Reattach the unloader tube, air lines, and electrical wiring. Replace the cover, close the tank drain, and power on the unit. Observe the cut-in and cut-out pressures to ensure they match your equipment’s specifications.

Compatible with a wide variety of portable and stationary air compressors, this OEM-quality pressure switch is a vital replacement part for maintaining a reliable and safe air supply.

• Air Compressor Pressure Switch – Part number 412024-E
• Automatic Operation: Manages motor cycling based on real-time tank pressure.
• Integrated Unloader Valve: Prevents motor strain by bleeding off head pressure during shutdowns.
• Heavy-Duty Contacts: Engineered for long-term electrical reliability and high-amperage loads.
• Adjustable Pressure Settings: Allows for fine-tuning of cut-in and cut-out points (refer to manual).
• Rugged Construction: Impact-resistant housing protects internal components from dust and debris.
• OEM-Quality Performance: Designed for a precise fit and dependable safety regulation.