Vendor Highlights: Frio

Who is Frio

Frio is a company focused on smart, connected solutions for temperature control. Their mission is to provide industrial and commercial customers with hardware and software that manages heating systems intelligently. Furthermore, they are looking to improve performance, safety, and energy efficiency for their customers.

What do they Sell?

The Frio S1 is a single‑circuit IoT heat‑trace controller. In fact, it is intended for snow melting, freeze protection, and maintaining temperatures in piping or similar systems. Key product features include:

  • It can drive up to 30A resistive loads, compatible with electric heat trace systems over a voltage range from 110 to 277 VAC. As a result, the unit can be used in any industrial and commercial application.
  • It comes in an outdoor‑rated enclosure that meets IP67 and NEMA 4X standards that are designed to withstand harsh environments.

There are two main models:

  • S1‑A — full feature set supports both Modbus and BACnet connectivity and works with thermistors and PT100 RTD sensors.
  • S1‑B — more basic: thermistor only; lacks the Modbus/RTD/BACnet features.

What makes Frio Unique?

Here are some of the standout traits of the Frio S1 that set it apart:

  • IoT Connectivity & Flexibility: Both models support Wi-Fi (2.4 & 5 GHz) and Ethernet connections. The S1‑A adds Modbus & BACnet for integration into building management systems.
  • Multiple Control Modes:
    • Local modes like freeze protection, temperature maintenance, manual control, and local snow sensing. Thus, is the perfect unit to use for any heat trace application.
    • Cloud modes: hybrid freeze protection (which uses weather forecasting + local sensors), smart snow melting (allowing for pre‑heat, ignoring light storms, etc.), and scheduled temperature maintenance for optimizing usage and reducing energy cost.
  • Safety & Ratings:
    • Meets relevant UL standards including ground‑fault sensing and automatic electrical control safety standards. Thus, can be used in almost any application needed.
    • Ground fault protection is programmable, with manual and automatic testing, plus a fire protection mode.
  • Rugged, Outdoor‑Rated Construction: IP67 enclosure, operational temperature from approx. −30 °C to +60 °C. Good for challenging outdoor/harsher climate uses.

As a result, the Frio S1 stands out as more than just a heat‑trace controller. It’s a smart, connected tool designed to give users control, safety, and energy savings — especially in applications like snow melting, freeze protection, or maintaining critical piping temps. If you have systems exposed to cold, snow, or freezing risk, the S1 delivers both robustness and intelligence.