---
product_id: 24563921
title: "Robertson VT235 /A V2 (3P10133) Magnetic Step-Down Voltage Transformer – 25VA Max Load, 277V to 120V, Compact Enclosed Transformer for Lighting Controls and HVAC Systems (Qty 1)"
brand: "robertson worldwide"
price: "$74.34"
currency: USD
in_stock: true
url: https://www.desertcart.us/products/24563921-robertson-vt235-a-v2-3p10133-magnetic-step-down-voltage-transformer
store_origin: US
region: United States of America
---

# 25VA max power 277V to 120V step-down Built-in surge protection Robertson VT235 /A V2 (3P10133) Magnetic Step-Down Voltage Transformer – 25VA Max Load, 277V to 120V, Compact Enclosed Transformer for Lighting Controls and HVAC Systems (Qty 1)

**Brand:** robertson worldwide
**Price:** $74.34
**Availability:** ✅ In Stock

## Summary

> ⚡ Power your smart spaces with compact confidence!

## Quick Answers

- **What is this?** Robertson VT235 /A V2 (3P10133) Magnetic Step-Down Voltage Transformer – 25VA Max Load, 277V to 120V, Compact Enclosed Transformer for Lighting Controls and HVAC Systems (Qty 1) by robertson worldwide
- **How much does it cost?** $74.34 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/24563921-robertson-vt235-a-v2-3p10133-magnetic-step-down-voltage-transformer)

## Best For

- robertson worldwide enthusiasts

## Why This Product

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

## Key Features

- • **Compact Powerhouse:** Delivers a robust 25VA output in a sleek, space-saving design perfect for tight installations.
- • **Surge-Proof Confidence:** Internal surge and transient protection guards your sensitive control devices from electrical spikes.
- • **Durability Meets Safety:** Enclosed metal casing with UL recognition ensures long-lasting, code-compliant performance.
- • **Plug-and-Play Versatility:** Easily mounts in junction boxes or control panels, ideal for both commercial and residential setups.
- • **Reliable Voltage Conversion:** Seamlessly steps down 277V to 120V for versatile lighting and HVAC control.

## Overview

The Robertson VT235/A V2 is a compact, UL-recognized magnetic step-down transformer that converts 277V input to a safe 120V output, delivering up to 25VA of isolated power. Designed for lighting controls and HVAC systems, it features built-in surge protection and a durable enclosed metal housing, making it an essential, reliable component for modern commercial and residential electrical installations.

## Description

Robertson VT235 /A V2 (3P10133) Magnetic Step-Down Voltage Transformer – 25VA Max Load, 277V to 120V, Compact Enclosed Transformer for Lighting Controls and HVAC Systems (Qty 1)

## Features

- Step-Down Voltage Conversion - Reduces 277V input to 120V output, ideal for powering low-voltage circuits in lighting control systems, sensors, and HVAC applications.
- 25VA Power Supply - Provides up to 25VA of isolated power for safe operation of thermostats, relays, timers, and other control devices.
- Compact and Durable Design - Enclosed construction with compact footprint for easy mounting in junction boxes, control panels, or fixture housings.
- Built-In Surge and Transient Protection - Engineered with internal protection against electrical spikes and voltage fluctuations for long-term reliability.
- UL Recognized and RoHS Compliant - Meets UL safety requirements and environmental standards for commercial and industrial installations.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| UPC | 734832020751 |
| Manufacturer | Robertson Worldwide |
| Part Number | 3P10133 |
| Item Weight | 11 ounces |
| Product Dimensions | 3.06 x 1.38 x 1.72 inches |
| Item model number | 3P10133 |
| Is Discontinued By Manufacturer | No |
| Size | Single Item |
| Color | Multicolored |
| Finish | Stamped |
| Material | Metal |
| Item Package Quantity | 1 |
| Number Of Pieces | 1 |
| Usage | Commercial/Residential |
| Batteries Included? | No |
| Batteries Required? | No |

## Product Details

- **Brand:** Robertson Worldwide
- **Power Source:** AC
- **Mounting Type:** Floor Mount
- **Specification Met:** ANSI
- **Item Weight:** 0.69 Pounds

## Images

![Robertson VT235 /A V2 (3P10133) Magnetic Step-Down Voltage Transformer – 25VA Max Load, 277V to 120V, Compact Enclosed Transformer for Lighting Controls and HVAC Systems (Qty 1) - Image 1](https://m.media-amazon.com/images/I/41OukJhAatL.jpg)

## Frequently Bought Together

- Robertson 3P10133 Step Down Voltage Transformer, 277Vac, 60Hz Primary, 120Vac. Secondary, 25VA Max Load, Model VT235 AM (Replaces Robertson 3M10006, VT235 /A)
- 75 Watt - Step Down Transformer 277 Volt to 120 Volt - for Use with Halogen Lamps - Hatch LS12075EN-277
- Functional Devices TR40VA013 Transformer, 40 VA, 480/277/240/208 to 120 Vac, Circuit Breaker, Foot and Single Threaded Hub Mount

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**Shop now:** [https://www.desertcart.us/products/24563921-robertson-vt235-a-v2-3p10133-magnetic-step-down-voltage-transformer](https://www.desertcart.us/products/24563921-robertson-vt235-a-v2-3p10133-magnetic-step-down-voltage-transformer)

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*Product available on Desertcart United States of America*
*Store origin: US*
*Last updated: 2026-05-20*