HT79F9AS

Overview

The SolaHD HT79F9AS is a 9 kVA three-phase encapsulated automation transformer designed for industrial applications. It features a 480 Delta primary voltage and a 380Y/220 VAC secondary output. The unit operates at a 60 Hz frequency rating and is constructed with non-ventilated, encapsulated windings to withstand harsh environments. Physically, the transformer measures 20 inches in width, 11 inches in depth, and 17 inches in height. It carries UL 506 and UL 1561 certifications for both Canada and the US markets.

Feature Summary

• Encapsulated construction provides protection against moisture, dust, and corrosive agents typical of industrial settings.
• Non-ventilated design eliminates the need for external cooling fans, reducing maintenance requirements and noise levels.
• Certified for use in hazardous locations, ensuring safety compliance in demanding operational environments.

Applications

• Industrial machinery power distribution
• Automation equipment control systems
• OEM system integration

Procurement Notes

Verify that the incoming shipment matches the specific part number HT79F9AS and confirms the 9 kVA rating. Ensure the physical dimensions align with the specified 20x11x17 inch footprint. Check for valid UL certification marks on the nameplate to confirm compliance with safety standards. Inspect the encapsulation for any physical damage prior to installation.

Selection Notes

Select this model when a robust, maintenance-free solution is required for three-phase power transformation in harsh conditions. The encapsulated design suits environments where ventilation is restricted or contaminants are present. Confirm that the 480V primary and 380Y/220V secondary voltages match the existing electrical infrastructure before procurement.

Part Context

This component belongs to the SolaHD Automation Transformers series, which specializes in non-ventilated units ranging from 50 VA to 45 kVA. These transformers are engineered specifically for OEMs and industrial machinery manufacturers requiring reliable power conversion in enclosed or hazardous spaces without active cooling mechanisms.

Replacement Considerations

Direct substitutes must maintain the 9 kVA capacity, three-phase configuration, and identical voltage ratings (480D primary, 380Y/220V secondary). Encapsulation type and hazardous location ratings should also be matched to ensure equivalent performance and safety compliance.

FAQ

Is the HT79F9AS suitable for outdoor installation?

Yes, the unit is rated NEMA Type 3R, providing protection against rain, sleet, and external ice formation, making it suitable for outdoor or semi-outdoor industrial environments.

What is the primary voltage configuration?

The primary winding is configured for 480 Volts in a Delta connection.