---
product_id: 75053469
title: "KB Electronics Model KBMS-13BV (UR) Variable Speed Fan Control, Panel Mount, Rated 3.0 Amps @ 120 VAC for use with Shaded Pole and PSC Motors"
brand: "kb electronics"
price: "VT8874"
currency: VUV
in_stock: true
reviews_count: 8
category: "Kb Electronics"
url: https://www.desertcart.vu/products/75053469-kb-electronics-model-kbms-13bv-ur-variable-speed-fan-control
store_origin: VU
region: Vanuatu
---

# 3.0 Amps @ 120 VAC power rating Adjustable minimum voltage calibration Infinitely variable speed control KB Electronics Model KBMS-13BV (UR) Variable Speed Fan Control, Panel Mount, Rated 3.0 Amps @ 120 VAC for use with Shaded Pole and PSC Motors

**Brand:** kb electronics
**Price:** VT8874
**Availability:** ✅ In Stock

## Summary

> 🎛️ Take command of your airflow with precision and style!

## Quick Answers

- **What is this?** KB Electronics Model KBMS-13BV (UR) Variable Speed Fan Control, Panel Mount, Rated 3.0 Amps @ 120 VAC for use with Shaded Pole and PSC Motors by kb electronics
- **How much does it cost?** VT8874 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.vu](https://www.desertcart.vu/products/75053469-kb-electronics-model-kbms-13bv-ur-variable-speed-fan-control)

## Best For

- kb electronics enthusiasts

## Why This Product

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

## Key Features

- • **Durable & Compact:** Lightweight 1.13 oz design fits tight industrial spaces
- • **Built-in Power Control:** Integrated on/off line switch for instant operation
- • **Seamless Speed Mastery:** Infinitely variable control for precise fan speed tuning
- • **Plug & Play Panel Mount:** Self-threading bushing and nut for effortless installation
- • **Universal Motor Compatibility:** Optimized for shaded pole, PSC, and AC/DC motors

## Overview

The KB Electronics KBMS-13BV is a compact, panel-mount variable speed fan controller rated at 3.0 Amps and 120 VAC. Designed for shaded pole, PSC, and AC/DC motors, it offers infinitely adjustable speed control with an internal power switch and adjustable minimum voltage calibration, making it a modern, reliable replacement for outdated fan speed methods.

## Description

The KBMC/MS Series are panel mount, fan speed controls which provide infinitely variable speed control of shaded pole, PSC, and AC/DC motors. These solid state AC variable voltage fan controls operate from 115/230VAC, 50/60 Hz and are designed to replace obsolete tapped windings, chokes, rheostats, and other methods, which are currently being used to obtain speed variations. The controls come standard with an internal power on/off line switch. The controls come with a self-threading Bushing and nut for panel mounting.

Review: Ignore the image (red box) buy by part number. Works Great! - This works awesome. I was hesitant to purchase because of the red boxish image. It did not show the actual project. But it was the best price by far that I could find, and had the correct part number, so I took a chance and got it. Glad I did, works perfectly for my Pacific Northwest woodstove insert fan whining issue. Now it is nice and smooth, works well.
Review: It worked perfectly. - It was the perfect replacement. Thank you!!

## Features

- Fan speed control
- For use with permanent split capacitor (psc) and split phase motors
- Adjustable min voltage calibration

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0751JW3TQ |
| Best Sellers Rank | #225,972 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #211 in Motor Speed Controllers |
| Date First Available | August 21, 2017 |
| Is Discontinued By Manufacturer | No |
| Item Weight | 1.13 ounces |
| Item model number | H9042 |
| Manufacturer | KB Electronics |
| Package Dimensions | 2.91 x 2.17 x 2.05 inches |

## Images

![KB Electronics Model KBMS-13BV (UR) Variable Speed Fan Control, Panel Mount, Rated 3.0 Amps @ 120 VAC for use with Shaded Pole and PSC Motors - Image 1](https://m.media-amazon.com/images/I/61RQPAT2sOL.jpg)

## Questions & Answers

**Q: What are outside dimensions of the black housing?**
A: The housing is essentially 1.650-inch (length) x 1.650-inch (width) x 1.040-inch (height).

The housing has a very slight taper from the bottom/base to the top (where rheostat shaft is); the bottom/base is slightly larger than the top. The bottom/base is 1.650-inch square; the top is 1.615-inch square.

**Q: What does "(ur)" in the part number mean? is this the same as kbms-13bv? i'm trying to replace ge# wb24x476 that rotates clockwise off>on>high>low**
A: What I ordered was exactly the same part needed .took the reference #s from the parts reinstalled and works fine!  UR may mean "Underwriters Rated"  Check Google for comparison with your ID.

**Q: Is there a product version with male connectors available?**
A: Unfortunately the standard control comes with bare wire.

**Q: Does this include the knob?**
A: This control is not supplied with a knob.  (supplied with mounting nut only)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Ignore the image (red box) buy by part number. Works Great!
*by S***O on April 25, 2025*

This works awesome. I was hesitant to purchase because of the red boxish image. It did not show the actual project. But it was the best price by far that I could find, and had the correct part number, so I took a chance and got it. Glad I did, works perfectly for my Pacific Northwest woodstove insert fan whining issue. Now it is nice and smooth, works well.

### ⭐⭐⭐⭐⭐ It worked perfectly.
*by J***R on July 20, 2024*

It was the perfect replacement. Thank you!!

### ⭐⭐⭐⭐⭐ Picture does not match the product.
*by M***N on December 2, 2025*

This is the potentiometer you're looking for after searching on Google for the part number. This is it. Mine went in a blower for a wood stove.

## Frequently Bought Together

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*Product available on Desertcart Vanuatu*
*Store origin: VU*
*Last updated: 2026-03-26*