Industrial AP4268 Filter Clog Switch

Description:

The Tri-Delta AP4268 Filter Clog Switch is used in HVAC and air handling systems for monitoring filter pressure conditions and indicating when filters require cleaning or replacement. Commonly installed in commercial air handlers, rooftop units, furnaces, and ventilation equipment requiring filter maintenance monitoring. HVAC technicians and maintenance teams use this switch for system diagnostics, preventative maintenance, replacement of failed switches, and maintaining proper airflow performance.

Applications:

The Tri-Delta AP4268 Filter Clog Switch is commonly used in HVAC filtration systems to detect increased pressure drop caused by dirty or restricted filters. The switch provides an electrical signal when filter loading reaches the set condition, helping protect equipment performance and improve maintenance scheduling. The unit is rated for 120–277 VAC operation with a 10 amp electrical rating. 

Technical Specifications:

• Manufacturer: Tri-Delta
• Model / Part number: AP4268
• Product type: Filter clog switch / differential pressure switch
• Voltage rating: 120–277 VAC
• Current rating: 10 A
• Frequency: 60 Hz
• Function: Monitors filter pressure condition and signals clogged filter status
• Application: HVAC systems, air handlers, furnaces, rooftop units, and ventilation equipment
• Switch type: Pressure-activated electrical switch
• Installation: Air handling equipment and filter assemblies
• Use: Filter monitoring, maintenance indication, and airflow protection
• Operating environment: Commercial and industrial HVAC applications

Common Replacements:

• Tri-Delta AP4268 Filter Clog Switch
• Tri-delta HVAC Differential Pressure Switch
• Compatible 120-277VAC Filter Pressure Switch