Foot Mount Transformer, 120/208/240V, Output 40V, PF42440

Foot Mount Transformer | PF42440 | 40VA | 120/208/240V to 24V | Class II

Ensure safe and reliable voltage conversion with this brand-new PF42440 foot mount transformer. Designed to meet U.L. Bulletin No. 508 “Industrial Control Equipment” standards, this Class II transformer is ideal for HVAC systems, control panels, and other industrial applications requiring a 24V output. Packard transformers will replace models with equal or lower VA ratings, offering dependable performance and universal compatibility.

Product Specifications:

• Primary Voltage: 120 / 208 / 240 VAC


• Secondary Voltage: 24 VAC


• Output VA: 40


• Mounting Option: Foot mount


• Connection Type: Wire lead


• Insulation Class: Class B


• Condition: Brand New – Unused

Replaces Part Numbers:

4031F, 50203, 90-T40F3, AT40A1121, AT40A1139, AT40B1214, GT446, SXT105, TWF424-40, UET105, UET115

Fits Applications:

Compatible with a wide range of HVAC units, control systems, and industrial panels requiring 24V output. Please verify voltage and VA requirements before purchase.

Installation Tips:

• Disconnect all power sources before servicing


• Mount transformer securely using foot bracket


• Connect wire leads according to system voltage and control diagram


• Confirm terminal insulation and secure all connections


• Restore power and verify 24V output under load

Installation Disclaimer:

This transformer is intended for use only in compatible HVAC and industrial control systems. Buyer is responsible for verifying voltage, VA rating, and mounting configuration before purchase. Installation should be performed by a licensed technician or qualified electrician. Returns are not accepted on installed or energized items due to electrical exposure and safety risks.

Reliable voltage conversion. UL-rated performance. Built for HVAC and industrial control systems.