KBB435 Quadruplex Centrifugal Blowers

The KBB435 Quadruplex Centrifugal Blower is a 550 CFM unit engineered to deliver exceptionally quiet and efficient operation across diverse industrial cooling and climate control applications. Designed for full performance regardless of mounting orientation, this blower adapts seamlessly to vertical, horizontal, or angled installations, providing flexibility in system design and retrofitting scenarios. Its rugged construction features a durable baked powder finish that resists corrosion and wear in demanding industrial environments.

The unit incorporates UL/CSA Recognized ball-bearing motors available in both permanent split capacitor and shaded pole configurations to match your specific application requirements. Every motor includes automatic-reset thermal overload protection that safeguards against damage from sustained overheating while allowing the system to recover automatically when conditions normalize. The motors are specifically designed for low temperature rise, with intake air from the blower itself providing additional cooling to maximize motor longevity and reliability. This integrated cooling strategy ensures superior performance across extended operating cycles.

All motors carry UL Recognition and a Declaration of Conformity to applicable CE Standards, meeting international compliance requirements for safety and performance. The blower utilizes special permanent lubricants formulated to perform reliably across an exceptionally broad temperature range from minus 20 degrees Fahrenheit to 250 degrees Fahrenheit, making it suitable for applications in cold storage facilities, heated industrial spaces, and variable climate environments. Generous 12-inch minimum power and ground leads provide convenient connection flexibility for simplified installation and maintenance access.