Square D 9070TF150D3 Control Transformer 150 Va

Product Description

The SQUARE D 9070TF150D3 is a single-phase control transformer rated at 150 VA, designed to step down line voltage to a safe control-circuit voltage in industrial and commercial electrical systems. It features a top-mounted fuse block for convenient fuse access and circuit protection without removing the transformer from its mounting position. The unit carries a 131 degrees F temperature rise rating, which indicates its thermal performance under full load. Licensed electricians and industrial controls technicians typically install this transformer in motor control centers, machine control panels, and automated equipment enclosures where reliable low-voltage control power is required.

This transformer is suited for industrial control panel applications where a dedicated low-voltage control circuit must be isolated from the main power feed. It fits within standard panel enclosures and is commonly installed in manufacturing, process control, and facility automation environments. The top-mount fuse block configuration keeps fuse replacement straightforward during routine maintenance or fault response without disturbing field wiring. The compact footprint allows integration into both new panel builds and retrofit control upgrades.

Key Features

• 150 VA single-phase rated capacity for control-circuit power supply
• Top-mount fuse block provides direct fuse access and overcurrent protection
• 131 degrees F temperature rise rating indicates thermal performance at full load
• Compact housing dimensioned at 6.6 inches tall, 6.8 inches wide, and 7.8 inches long
• Fused design adds built-in secondary circuit protection

Compatibility

Designed as an OEM-style replacement or new-installation control transformer for single-phase industrial control panel applications requiring a 150 VA transformer with a top-mount fuse block.

Installation Notes

Installation should be performed by a licensed electrician in accordance with applicable NEC requirements. De-energize and lock out the panel before mounting or wiring the transformer. Verify primary and secondary voltage ratings match the existing control circuit design before making connections. Ensure the enclosure provides adequate ventilation to support the transformer's rated temperature rise under continuous load.