1. About 24 VDC Transformers

24 VDC transformers are essential components for converting AC voltage to stable 24V DC output. They are commonly used in control systems, HVAC equipment, and industrial automation.

2. How This Calculator Works

This calculator helps determine the appropriate VA-rated transformer for your application based on:

• Input voltage requirements
• Required output current
• Available VA ratings

3. Selection Guide

Key Factors:

• Match input voltage to your local power supply
• Calculate total wattage needed (24V × current)
• Choose a transformer with VA rating ≥ your calculated wattage
• Consider derating for continuous operation

4. Product Specifications

Available Models:

• 10 VA: Compact size, 0.4A max output
• 20 VA: General purpose, 0.8A max output
• 50 VA: Industrial grade, 2A max output
• 100 VA: Heavy duty, 4A max output

5. Frequently Asked Questions (FAQ)

Q1: What does "For sale" mean?
A: This calculator helps select from our available transformer inventory.

Q2: Why 24 VDC specifically?
A: 24V is a common control voltage standard for safety and compatibility.

Q3: How important is VA rating?
A: VA (Volt-Ampere) rating determines the maximum load capacity.

Q4: Can these be used outdoors?
A: Only with proper NEMA-rated enclosures for protection.

Q5: What's the typical lifespan?
A: 10+ years with proper installation and adequate ventilation.