HPS Sentinel Ventilated Transformers (NEMA Rated) from AutomationDirect

September 5, 2019

HPS Sentinel G ventilated stand-up distribution transformers meet the latest federally mandated energy efficiency standards as outlined by DOE 2016 and NRCan 2019 requirements.

These dry-type 3-phase distribution transformers are open coil/core ventilated, NEMA 3R (outdoor enclosed) rated and offer significant energy savings and environmental benefits. The HPS Sentinel models are rated up to 75kVA, and the standard 10kV BIL rating (Basic Insulation Rating) provides increased reliability and protection against critical equipment failure including protection against voltage spikes and other line transients.

Standard advanced core and coil construction features save installation labor and materials. The core is manufactured from quality non-aging, cold-rolled, silicon steel laminations and precision cut to close tolerances which eliminates burrs and improves performance. The core is coated to prevent the ingress of moisture and precision wound aluminum conductors are electrically balanced to minimize axial forces during short-circuit conditions.

Starting at $1,235, HPS Sentinel transformers from AutomationDirect are UL and CSA certified and have a 10-year warranty.

Learn more by visiting: www.automationdirect.com/ventilated-transformers

Related Articles

Editor’s Pick: Featured Article

Weidmüller’s u-control 2000: The Automation Controller

Weidmüller’s u-control 2000: The Automation Controller

Weidmüller’s scalable engineering software, u-control 2000, adapts individually to your requirements. And, the u-control is powerful, compact and fully compatible with Weidmüller’s I/O system u-remote. This article looks at what makes u-control the heart of your automation.

Programmable logic controllers (PLCs) are one of the main components of any automated system. A typical control system has inputs, outputs, controllers (i.e., PLCs), and some type of human interaction with the system, a human machine interface (HMI), for example.

Read More

Latest Articles

  • How Festo is Building the Next-Gen Workforce Through Technical Education & Skills Competitions

    How Festo is Building the Next-Gen Workforce Through Technical Education & Skills Competitions

    July 31, 2026 By Krystie Johnston Festo is a leader in industrial automation and technical education. For decades, they have sponsored SkillsUSA and WorldSkills mechatronics competitions to align education and industry, supporting the workforce of the future. Festo Didactic (the teaching arm of the Festo Group) has been an active participant and sponsor of SkillsUSA… Read More…

  • Driving the Clean Energy Transition with High-Voltage Power Transformers

    July 23, 2026 Utility-Scale Renewable Energy Project, Jan 2026 Project Overview A global renewable energy leader—operating across Europe, North America, and Latin America—continues to expand its portfolio of utility-scale solar and wind projects to accelerate the net-zero transition. With deep expertise in development, investment, and asset management, the organization focuses on delivering long-term, low-risk clean energy… Read More…