Square D 9070TF100D1 Industrial Control Transformer 100VA 240/480V to 120V with Fuse Blocks

The Square D by Schneider Electric 9070TF100D1 is a Type TF single-phase industrial control transformer designed for panel builders and machinery OEMs. This 100VA transformer steps down 240/480V primary voltage to 120V secondary voltage, with multiple tap configurations available (220/440V to 110V or 230/460V to 115V) for flexible installation requirements.

Key Features:

• Factory-installed primary and secondary fuse blocks save panel space and installation time
• Low impedance copper windings provide excellent voltage regulation
• Accommodates high inrush current from contactors, starters, solenoids, and relays
• Fuse blocks rated for 30A and accept CC-type fuses (0.41 x 1.50 inch)
• Primary fuse blocks designed for rejection-style 200,000 AIC fuses
• 55°C temperature rise rating with 105°C insulation class
• Panel mount design with screw clamp terminals
• Open construction for easy service access

Specifications:

• Power Rating: 100VA
• Phase: Single-phase
• Frequency: 50/60 Hz
• Primary Voltage: 240/480V (also 230/460V or 220/440V via taps)
• Secondary Voltage: 120V (also 115V or 110V via taps)
• Dimensions: 5.8"H x 5.25"W x 6.3"D (with fuse blocks)
• Transformer only: 3.38"W x 3.34"D x 4.25"H

The Type TF design integrates two primary fuse blocks and one secondary fuse block pre-wired and mounted on top of the transformer, maintaining the same footprint as non-fused Type T units. This UL 508 listed and CSA certified transformer meets NEC Article 450 requirements and is compliant with the Buy American Act, CE, and RoHS standards.