Aaon R88960 Contactor

The Aaon R88960 Contactor is a heavy-duty 3-pole magnetic contactor engineered for high-demand HVACR applications, specifically within Aaon rooftop units and chillers. Operating at a 208-240V coil voltage, this component is rated for 40 FLA (Full Load Amps), providing reliable switching for three-phase compressor motors and industrial condenser fans. Its robust silver cadmium oxide contacts are designed to minimize arcing and resist welding, ensuring longevity under high-cycle conditions. The inductive load rating ensures it handles the high inrush currents typical of large-scale cooling equipment. This genuine Aaon replacement part maintains the specific electrical footprint required for standard control box mounting, preventing field modification issues. When diagnosing chattering contactors or burnt points, utilizing an OEM HVAC contactor like the R88960 ensures the HVAC electrical system remains within original manufacturer specifications for safety and phase-to-phase balance.

Key Performance Benefits

• 40 Amp 3-Pole configuration optimized for three-phase power distribution.
• 240V inductive load capacity ensures compatibility with commercial AHUs and RTUs.
• Compact frame design fits standard Aaon electrical sub-panels and DIN rail mounts.
• Durable terminal lugs provide secure torque points for high-voltage wiring.
• Silver-plated contacts reduce electrical resistance and heat buildup during continuous operation.

Common Questions

What causes an Aaon R88960 contactor to fail prematurely?
Failure is often attributed to pitted contacts caused by voltage drops or rapid cycling. If you observe scorched contact points, check the 24V control circuit and the capacitor for signs of wear before installing the new unit.

Is the Aaon R88960 interchangeable with 30-amp contactors?
No. While the footprint may be similar, the 40A FLA rating is necessary to handle the specific load requirements of Aaon equipment. Downsizing the ampacity will lead to catastrophic failure under locked rotor amperage (LRA) conditions.

Does this contactor include an auxiliary switch?
This is a standard 3-pole power contactor. If your system requires auxiliary feedback for a building management system (BMS), ensure you retain the original auxiliary block or verify compatible snap-on accessories.

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.