Eaton C25DND330T (42BF35AJ) Contactor

The Eaton C25DND330T is a heavy-duty 3-pole definite purpose contactor engineered for reliable switching in demanding HVACR applications. Designed as a direct electrical and dimensional replacement for the Furnas 42BF35AJ, this unit features a 30A inductive rating and a 24V AC coil, making it a standard choice for technicians servicing commercial AC units, refrigeration systems, and resistive heating loads. Built on a rugged metal mounting plate, it utilizes double quick-connect terminals and screw/pressure plate connections to ensure high-integrity wiring in high-vibration environments. The C25DND330T is part of Eaton's E1 frame series, known for its open-enclosure design that facilitates efficient heat dissipation and clear visual inspection of the double-break contacts. Whether you are performing a contactor replacement on a rooftop package unit or a walk-in cooler, this 3PH 30-amp contactor provides the 600V rated performance required to maintain system uptime and motor protection.

• Direct Cross-Reference: Engineered to match the exact specifications and footprint of the 42BF35AJ for seamless field replacement.
• Versatile Termination: Features screw/pressure plate terminals with side-by-side quick connects, allowing for flexible wiring configurations.
• Industrial Durability: Constructed with a metal mounting plate and high-grade materials to withstand the cycling demands of HVAC motor control.
• Certified Reliability: Fully UL Recognized and CSA Certified, meeting ARI 780 standards for definite purpose switching.

Is the Eaton C25DND330T compatible with 208/240V systems?
While the 3 main poles are rated for up to 600V AC, the activation coil voltage must be 24V AC. Always verify your control circuit voltage before installation.

Can I add auxiliary contacts to this unit?
Yes, the C25 series frame supports snap-on side-mounted auxiliary contacts if your application requires additional signaling or interlocking.

What is the difference between the C25DND330T and the 42BF35AJ?
Technically, they are functionally identical. The Eaton C25DND330T is the contemporary replacement for the older or obsolete Furnas/Siemens 42BF35AJ model.

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.