CB72-25 110V AC Motor Speed Controller | 50-550W Variable Speed PCB

WHY THIS BOARD

Why choose CB72-25

The CB72-25 AC Motor Speed Controller Board is designed for adjustable speed control of AC motor applications.

Supporting AC110V input voltage and 50-550W power range, CB72-25 provides reliable and flexible motor speed regulation for electric tools, small machinery, and OEM equipment.

With a compact design and stable control performance, it helps manufacturers develop variable-speed products for 110V markets.

AC speed regulation

Continuous motor speed control from the rotary dial — adjust cutting and sanding speed to the material.

Rotary knob control

Intuitive rotary knob for smooth and precise speed adjustment across the full operating range.

110 V compatible

Designed for 110 V AC power systems — ideal for North American and other 110 V markets.

SPECIFICATIONS

CB72-25

Specification	Value
Model	CB72-25
Standard	—
Rated voltage	AC 110V
Rated current	—
Rated power	50~550W
Function	AC Speed Regulation · Rotary Knob Control · 110V Compatible

PRODUCT VIEW

CB72-25 at a Glance

Board dimensions, dial and wiring from the catalog drawing.

BOARD

CB72-25 AC speed control board — 50~550W.

WIRING

Wiring compatible with both AC 110V and 230V systems — red, black and white leads.

USE

Fits AC-powered power tools — wire between the trigger switch and the motor.

APPLICATIONS

For AC-powered power tools

Official application range of the speed control board series.

01

AC-powered jigsaws

02

Circular saws

03

Reciprocating saws

04

Small bench drills

05

Table saws

06

Other handheld electric tools

TECHNICAL DRAWING

CB72-25 Dimensions & Wiring

Official engineering drawing from the catalog — click to enlarge.

PCB: 65 × 60 mm  ·  Thickness: 1.5 mm  ·  Height: 21.4 mm  ·  Mounting: 4-Φ3.5

Wiring: Black (16AWG) — Live input | Red (16AWG) — Live output | White (20AWG) — Neutral common | Blue (20AWG) — Neutral input

QUALITY & CERTIFICATIONS

Approved for global markets, checked at four gates

CB72-25 is built in our ISO 9001:2015 plant with UL- and TÜV-certified in-house laboratories, and every unit passes four quality gates before it ships.

TÜVcULusCEISO 9001:2015

IQC

Incoming quality control — materials and components are inspected on arrival.

IPQC

In-process quality control — automated assembly lines are checked at every station.

FQC

Final quality control — every unit is tested before shipment.

OQC

Outgoing quality control — packed batches are re-checked before dispatch.

Need a Custom Motor Control Solution?

Our engineering team can tailor a speed control PCB to your exact specifications. Get in touch for samples and pricing.

Contact Us

Frequently Asked Questions

What is the CB72-25?

The CB72-25 AC Motor Speed Controller Board is designed for adjustable speed control of AC motor applications.

What are the key specifications of the CB72-25?

Model: CB72-25; Rated voltage: AC 110V; Rated power: 50~550W; Function: AC Speed Regulation · Rotary Knob Control · 110V Compatible.

What should be checked before using the CB72-25 as a replacement?

Before using this product as a replacement, verify that rated voltage (AC 110V), rated power (50~550W) match your target part. Also check the mounting and terminal layout. Contact DKLD with the ratings of the part you are replacing and we will confirm suitability.

Can this product range be customized for OEM projects?

Yes. Electrical parameters, connectors and packaging can be customized for OEM/ODM projects.

How can I verify DKLD certifications?

UL certification and TÜV certification are verifiable in the official databases.

Where are DKLD products manufactured?

All products are manufactured at our Yueqing facility with in-house quality control.