The Tiny Connector Solving Big HVAC Design Problems

Today’s HVAC systems are doing more in less space—and that puts pressure on engineers to find components that are both compact and reliable. Connectors are a key part of that equation.

Molex’s Squba Sealed Wire-to-Wire Connector System is built with these challenges in mind. Rated IP68 and capable of carrying up to 14.0A, it’s a small-footprint solution that holds up in harsh conditions and tight quarters.

Why HVAC Needs a New Breed of Connectors

Today’s HVAC units aren’t just fans and filters—they’re packed with sensors, intelligent control modules, variable speed compressors, and connectivity options for building automation systems. Whether installed in residential, commercial, or industrial settings, HVAC components are now expected to deliver:

• Consistent uptime, even in humid or dusty environments

• Compact designs to fit more capability in smaller units

• Power and signal reliability across longer service intervals

That’s where traditional wire-to-wire connectors often fall short. Moisture ingress, mechanical wear, and poor mating reliability can lead to failure points. Molex designed the Squba series to tackle these exact problems head-on.

Key Benefits of Squba in HVAC Design

• IP68 Sealing for Harsh Conditions
  HVAC systems often operate in outdoor or semi-exposed environments. Squba’s IP68-rated seal helps protect against dust and prolonged moisture exposure, making it ideal for condensers, compressors, and control modules.

• 14.0A Current Carrying Capacity
  Despite its compact form factor, Squba can deliver high current—enabling efficient power transmission without the bulk of larger connectors. This makes it suitable for components like high-torque motors or active control circuitry.

• Space-Saving Design
  With growing pressure to reduce system footprints, Squba’s small size gives engineers more freedom to route wiring through confined spaces without sacrificing durability.

• Reliable Mating and Retention
  Squba features a positive locking mechanism to ensure secure mating, even in high-vibration environments, reducing the chance of connection failure over time.

Ideal Use Cases in HVAC

Squba connectors can be leveraged throughout a wide range of HVAC components, including:

• Fan motors and control boards

• Compressor systems

• Sensor arrays for temperature, humidity, and occupancy

• Power distribution modules

• Zone control units in ductless systems

With rising demand for modular, plug-and-play HVAC subsystems, connectors like Squba help streamline installation and maintenance while ensuring long-term performance.

A Smarter Future Needs Smarter Connectivity

HVAC innovation isn’t just about better airflow—it’s about how reliably and efficiently energy, data, and signals flow through the system. With their compact design, rugged sealing, and high current capacity, Molex’s Squba connectors offer a proven solution for engineers designing the next generation of climate control systems.

As the HVAC industry continues to blend performance with precision, connectors like Squba aren’t just a component—they’re a competitive advantage.

Learn More: Squba Connectors | Molex