Square D 8910DPA33V14 Contactor

The Square D 8910DPA33V14 is a professional-grade 3-pole definite purpose contactor engineered for rigorous duty in commercial HVACR and industrial motor control applications. As a core component of the Square D DPA series, this model is designed to handle inductive loads up to 30 Amps and resistive loads up to 40 Amps, making it a standard choice for technicians servicing rooftop units, large-scale refrigeration compressors, and food service power systems. It features a 24V AC coil (50/60 Hz) and 3 normally open (NO) contacts, providing reliable high-current switching for equipment rated up to 600 VAC. This unit is the direct manufacturer replacement for the CON-3/24/30 series, ensuring a seamless drop-in fit during field service. The open frame design incorporates quick connect terminals and binder head screws, allowing for high-torque wiring connections that stay secure under thermal cycling. Built for longevity in high-cycle environments, it meets UL and CSA standards for safety and performance.

Key Benefits for Contractors:

• Direct Field Replacement: Specifically designed to replace CON-3/24/30 and similar 30A 24V 3P contactors without mounting modifications.
• Industry-Standard Reliability: The Schneider Electric Square D legacy ensures consistent contact pressure and reduced arcing in demanding 3-phase motor control applications.
• Versatile Termination: Features a combination of box lugs and 1/4 inch quick-connect terminals for flexible, fast installation in the field.
• High Voltage Compatibility: Rated for loads up to 600V, making it suitable for a wide range of industrial HVACR and data processing equipment.
• Compact Open Base: Small footprint allows for easy integration into crowded electrical control panels and air handler control boxes.

Common Questions & Technical Insights:

Can I use the 8910DPA33V14 to replace a 2-pole contactor?
While technically possible if the electrical ratings match, it is best practice to use a 3-pole contactor only in 3-phase applications or where all three lines of a single-phase circuit must be broken for safety. Always verify the 24V coil voltage matches your transformer output.

What is the difference between this and a general-purpose relay?
This definite purpose contactor is specifically hardened for high-cycle motor starting and resistive heating loads. Unlike standard relays, the DPA series is built to handle the high inrush currents typical of HVAC compressors and blower motors.

Is this contactor compatible with 50Hz systems?
Yes, the V14 coil code indicates the magnet coil is rated for both 50Hz and 60Hz cycles at 24VAC, making it suitable for various international equipment specifications.

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.