---
product_id: 118177027
title: "Endurance Pro EI Type Isolation Transformers PRI.120/208/240 V AC 50/60Hz 24 V AC 40 VA Class 2 Control with Foot Mount Replacement for Jard 4031F HVAC Furnace Multi Tap Packard 42440 Gemline GT446"
brand: "endurance pro"
price: "R$363"
currency: BRL
in_stock: true
url: https://www.desertcart.com.br/products/118177027-endurance-pro-ei-type-isolation-transformers-pri-120-208-240
store_origin: BR
region: Brazil
---

# 40 VA Power Rating 120/208/240 V AC Input Compact 4.1 x 2.8 x 2.7 in Endurance Pro EI Type Isolation Transformers PRI.120/208/240 V AC 50/60Hz 24 V AC 40 VA Class 2 Control with Foot Mount Replacement for Jard 4031F HVAC Furnace Multi Tap Packard 42440 Gemline GT446

**Brand:** endurance pro
**Price:** R$363
**Availability:** ✅ In Stock

## Summary

> 🔋 Power Up Your HVAC Game!

## Quick Answers

- **What is this?** Endurance Pro EI Type Isolation Transformers PRI.120/208/240 V AC 50/60Hz 24 V AC 40 VA Class 2 Control with Foot Mount Replacement for Jard 4031F HVAC Furnace Multi Tap Packard 42440 Gemline GT446 by endurance pro
- **How much does it cost?** R$363 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.com.br](https://www.desertcart.com.br/products/118177027-endurance-pro-ei-type-isolation-transformers-pri-120-208-240)

## Best For

- endurance pro enthusiasts

## Why This Product

- Trusted endurance pro brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Compact Design:** Space-saving dimensions (4.1 x 2.8 x 2.7 inches) fit seamlessly into your setup.
- • **Safety Assured:** UL/CSA approved for peace of mind and long-lasting performance.
- • **Versatile Voltage:** Compatible with 120/208/240 V AC, ensuring flexibility in various applications.
- • **Hassle-Free Warranty:** Enjoy a 1-year no questions asked warranty for risk-free shopping.
- • **Powerful Performance:** Delivers a robust 40 VA power rating for reliable operation.

## Overview

The Endurance ProEI Type Isolation Transformer is engineered for industrial heating and air conditioning controls, providing reliable performance with a primary voltage range of 120/208/240 V AC and a secondary voltage of 24 V AC. With a compact design and UL/CSA approval, this transformer is a safe and efficient choice for various applications, backed by a 1-year warranty.

## Description

Endurance Pro EI Type Isolation Transformers PRI.120/208/240 V AC 50/60Hz 24 V AC 40 VA Class 2 Control with Foot Mount Replacement for Jard 4031F HVAC Furnace Multi Tap Packard 42440 Gemline GT446

## Features

- [Product description] This transformer is designed for use in industrial, heating and air conditioning controls, including thermostats, air conditioning circuits, relays, gas valves and other applications that do not exceed the listed rating
- [Product specifications] Primary Voltage: 120/208/240 V AC ,WHT-BLK-RED-ORG. Secondary Voltage: 24 V AC, RED-GRN. Power Rating：40 VA
- [Product dimensions] 4.1 x 2.8 x 2.7 inches
- [Replacement for] Gemline GT446,Supco SXT105,UEI UET105, UET115,Grainger 6WU91,Jard 4031F,Mars 50203,White-Rodgers GT4031F, 90-T40F3,Grainger 6WU91,Armstrong TWF424-40,Source 1 S1-T2404F,Packard PF42440,Robertshaw 620-206, 620-406, 620-482,Honeywell AT140A1018, AT40A1121, AT40A1139, AT40B1214.
- [Risk free shopping] UL/CSA approved parts assure safe operation and long life. This Endurance Pro part by Supply Edge comes with a 1 year no questions asked warr anty.

## Product Details

- **Brand:** Endurance Pro
- **Power Source:** Corded Electric
- **Product Dimensions:** 2.7"D x 2.8"W x 2.7"H
- **Mounting Type:** Foot Mount
- **Specification Met:** CSA, UL

## Images

![Endurance Pro EI Type Isolation Transformers PRI.120/208/240 V AC 50/60Hz 24 V AC 40 VA Class 2 Control with Foot Mount Replacement for Jard 4031F HVAC Furnace Multi Tap Packard 42440 Gemline GT446 - Image 1](https://m.media-amazon.com/images/I/81duAi4xOmL.jpg)

## Available Options

This product comes in different **Number of Items** options.

## Questions & Answers

**Q: Do you have a Class 2 Transformer, 12vac, 1.67A Foot for a small desk lamp?**
A: Sorry for the delay been really busy,Yes  I Do.

**Q: Does it works for a ring doorbell which requeriments: 16–24 v de ca, 10–40 va, 50/60 hz?  thanks**
A: Yes it will just make sure you do your wires correctly

**Q: I'm hooking up a transformer with green and red 24 v wires to a furnace with blue and yellow wires which wires go where**
A: Your choice it's all the same. You can use a multy meter and check if blue or yellow is ground but it wont be, only D.C. would have a ground

**Q: Could this work with gas rheem ruud furnace and smart thermostat?**
A: You have to check the voltage and current ratings. The voltage must match exactly and current provided by the old unit must be less than or equal to the ratings on the replacement transformer.

## Frequently Bought Together

- Endurance Pro EI Type Isolation Transformers PRI.120/208/240 V AC 50/60Hz 24 V AC 40 VA Class 2 Control with Foot Mount Replacement for Jard 4031F HVAC Furnace Multi Tap Packard 42440 Gemline GT446
- Dreyoo 1 Pcs 24V Coil 40A 2 Pole Air Conditioner Contactor, UL Certified HVAC Motor Contactor, Air Conditioner Replacement Relay, Compatible with C230b, Heat Pump, Refrigeration Systems
- Supco 90370 General Purpose Fan Relay, 12 A Load Current, 24 V Coil Voltage, Single Pole Double Throw Contacts

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**Shop now:** [https://www.desertcart.com.br/products/118177027-endurance-pro-ei-type-isolation-transformers-pri-120-208-240](https://www.desertcart.com.br/products/118177027-endurance-pro-ei-type-isolation-transformers-pri-120-208-240)

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*Product available on Desertcart Brazil*
*Store origin: BR*
*Last updated: 2026-02-27*