CB03B AC Motor Speed Control Board
Why choose CB03B
The CB03B AC Motor Speed Control Board is an advanced motor control solution integrating speed regulation, constant power compensation, and soft start functions.
Supporting AC230V input voltage and 50-1800W power range, CB03B provides smooth startup, stable power output, and reliable speed control performance for high-performance motor applications.
It is designed for professional electric tools, machinery, and OEM equipment requiring intelligent AC motor control.
AC speed regulation
Continuous motor speed control from the rotary dial — adjust cutting and sanding speed to the material.
Constant power output
Maintains steady output power as load changes — the tool keeps performing under pressure without stalling.
Soft start
Gradually ramps up motor power at startup — eliminates jarring impact and extends motor and mechanical life.
One board, 50–1800 W
A single board covers tool loads from 50 W to 1800 W at AC 230 V — one part number for a wide range of applications.
CB03B specifications
From the official 2026 speed control board catalog.
CB03B at a glance
Board dimensions, dial and wiring from the catalog drawing.
For AC-powered power tools
Official application range of the speed control board series.
AC-powered jigsaws
Circular saws
Reciprocating saws
Small bench drills
Table saws
Other handheld electric tools
CB03B dimensions & wiring
Official engineering drawing from the catalog — click to enlarge.
Strip 5mm from wire end for terminal connection.
Approved for global markets, checked at four gates
CB03B 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.
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 UsFrequently Asked Questions
What is the CB03B?
The CB03B AC Motor Speed Control Board is an advanced motor control solution integrating speed regulation, constant power compensation, and soft start functions.
What are the key specifications of the CB03B?
Model: CB03B; Rated voltage: AC 230V; Rated power: 50~1800W; Function: AC Speed Regulation · Constant Power Output · Soft Start · Wide Power Range (50–1800W).
What should be checked before using the CB03B as a replacement?
Before using this product as a replacement, verify that rated voltage (AC 230V), rated power (50~1800W) 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.
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