Reznor 151153 Contactor

The Reznor 151153 is a purpose-built 4-pole contactor designed for high-demand commercial and industrial HVACR applications. Engineered with a robust 480V coil, this component is essential for managing high-voltage electrical loads in heavy-duty heating and cooling equipment. With a 25 Amp rating per pole, it provides reliable switching for three-phase motors and large electric heat banks, ensuring consistent power distribution to critical system components like compressors and blowers.

This HVAC contactor features an integrated auxiliary contact, allowing technicians to easily daisy-chain control circuits or monitor the contactor's status through an external BMS or indicator light. The 4P (four-pole) configuration is ideal for breaking all legs of a 480-volt power supply, significantly improving safety and operational control over standard 2 or 3 bundle configurations. When performing a Reznor 151153 replacement, ensure that the coil voltage matches the control circuit to prevent premature coil burnout or chattering. This genuine OEM-equivalent part maintains the original engineering specifications required forReznor unit heaters and ventilation systems, providing a precise fit and long-term durability in high-cycle environments.

Key Benefits:

• High-Voltage Rated: Specifically designed for 480V HVAC systems, reducing the risk of arcing and overheating in high-voltage industrial setups.
• Four-Pole Versatility: The 4P 25 Amp configuration allows for comprehensive 3-phase switching with an additional pole for neutral or auxiliary switching needs.
• Auxiliary Contact Included: Pre-equipped with a contactor auxiliary contact to provide feedback signals or secondary circuit control without additional mounting kits.
• Industrial Build Quality: Constructed to withstand the high-cycle demands of commercial heaters, preventing contact welding and coil failure.

Common Questions:

Can I use this contactor for a 24V or 120V control circuit?
No. The Reznor 151153 specifically requires a 480V coil voltage for activation. Using a lower control voltage will fail to pull in the contacts, while the wrong voltage can damage the control transformer or the contactor coil itself.

What are the signs that my 151153 contactor needs replacement?
Look for pitted or blackened contact points, a humming/buzzing noise (indicating a failing coil or debris in the magnet), or "welded" contacts where the equipment stays energized even when the thermostat is satisfied.

Why is the auxiliary contact important in this setup?
In many Reznor units, the auxiliary contact is used to interlock other components or send a confirmation signal to a control board, ensuring that the blower or heater only operates when the main contacts are fully engaged.

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.