Square D 9070TF100D23 Control Transformer 100 Va

Product Description

The SQUARE D 9070TF100D23 is a single-phase, 100 VA control transformer designed for industrial and commercial control circuit applications. It features a top-mounted fuse block that provides overcurrent protection directly at the transformer secondary, reducing wiring complexity and improving panel organization. Rated at 100 VA, this unit handles typical control voltage loads including solenoid coils, contactors, relays, and pilot devices. The fused secondary design helps protect downstream control components from fault current. At 4.49 pounds, the unit is substantial enough for permanent panel mounting and is sized for standard enclosure installations.

This transformer is suited for use in motor control centers, machine control panels, HVAC equipment, and industrial automation enclosures where a stepped-down, fused control voltage supply is required. It is intended for installation by licensed electricians or qualified control panel builders working on 1-phase control circuit applications. The top-mount fuse block allows straightforward fuse access during routine maintenance without removing the transformer from its mounting position.

Key Features

• 100 VA single-phase rating supports standard control circuit loads including contactors and relays
• Top-mounted fuse block provides integrated overcurrent protection at the secondary
• Fused configuration reduces external fusing hardware and simplifies panel layout
• Compact footprint at 8 inches length by 7 inches width by 6.3 inches height
• 4.49-pound construction supports secure, permanent enclosure mounting

Compatibility

Designed as an OEM-style replacement or direct upgrade control transformer for single-phase industrial and commercial control panel applications requiring 100 VA capacity with a top-mount fuse block.

Installation Notes

Installation should be performed by a licensed electrician in accordance with NFPA 70 (NEC) requirements for control transformers and overcurrent protection. De-energize and lock out the panel before mounting or wiring the transformer. Verify that the primary voltage supply and secondary control voltage requirements match the transformer nameplate ratings before energizing. Inspect the fuse block and verify correct fuse sizing for the secondary circuit load prior to placing the system in service.