Square D 9070TF500D3 Control Transformer 500 Va

Product Description

The SQUARE D 9070TF500D3 is a single-phase, 500 VA control transformer designed to step voltage down to safe control-circuit levels in industrial and commercial electrical systems. It features a top-mount fuse block that provides overcurrent protection directly at the transformer, eliminating the need for a separate fuse holder downstream. Rated at 500 VA, it delivers sufficient capacity for motor starters, contactors, solenoids, and other control loads. The unit is built for panel or enclosure installation and is handled by licensed electricians during installation and commissioning of motor control centers and automation panels.

This transformer is suited for use in industrial control panels, HVAC equipment, machine tool circuits, and commercial electrical systems where a fused step-down transformer is required. The top-mount fuse block configuration is common in applications where accessible fuse replacement without removing the transformer is a priority. At 500 VA, it supports moderate control-circuit loads typical in mid-size motor control or building automation installations.

Key Features

• 500 VA single-phase rating handles moderate control-circuit loads
• Top-mount fuse block provides integrated overcurrent protection at the transformer
• Fused design protects downstream control wiring without a separate fuse holder
• Compact footprint at 7.8 inches long by 6.8 inches wide by 6.4 inches tall
• 239 degrees F temperature rise rating published for thermal sizing reference

Compatibility

Designed as an OEM-style replacement control transformer for single-phase industrial control panel applications requiring a 500 VA top-mount fused unit.

Installation Notes

Installation must be performed by a qualified electrician in accordance with the NEC and applicable local codes. De-energize and lock out the panel before removing the existing transformer or making any wiring connections. Verify primary and secondary voltage ratings match the system requirements before energizing. Do not exceed the 500 VA nameplate rating with connected control loads.