CB77 AC230V Motor Speed Controller | 50Hz Variable Speed Control PCB

WHY THIS BOARD

Why choose CB77

The CB77 AC Motor Speed Controller Board is designed for adjustable speed control of AC motor applications.

Supporting AC230V 50Hz power systems, CB77 provides a reliable solution for motor speed regulation in electrical equipment and OEM applications.

With a compact controller design and flexible integration capability, CB77 helps manufacturers develop variable-speed products with improved operation control and performance.

AC speed regulation

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

Compact design

Space-saving form factor fits easily into tight tool housings without compromising performance.

SPECIFICATIONS

CB77

Specification	Value
Model	CB77
Standard	—
Rated voltage	AC 230V/50Hz
Rated current	—
Rated power	—
Function	AC Speed Regulation · Compact Design

PRODUCT VIEW

CB77 at a Glance

Board dimensions, dial and wiring from the catalog drawing.

BOARD

CB77 compact AC speed control board for motor loads from ?.

WIRING

Red, black and white leads for speed control and motor connection — wired to AC 230V/50Hz.

USE

Fits compact AC power tools and small motor devices — easy to install inside the tool housing.

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

CB77 Dimensions & Wiring

Official engineering drawing from the catalog — click to enlarge.

PCB: 36.5 × 62 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

CB77 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 CB77?

The CB77 AC Motor Speed Controller Board is designed for adjustable speed control of AC motor applications.

What are the key specifications of the CB77?

Model: CB77; Rated voltage: AC 230V/50Hz; Function: AC Speed Regulation · Compact Design.

What should be checked before using the CB77 as a replacement?

Before using this product as a replacement, verify that rated voltage (AC 230V/50Hz) 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.