Best Actuator Blocks of 2026

Brian Howie Avatar
Brian Howie
Last Updated: Jan 10, 2026

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Actuator blocks are an essential component of complex mechanical systems that require precise and efficient movement. These blocks are designed to convert electrical energy into mechanical motion, allowing them to exert force and control the operation of various components. Actuator blocks come in various shapes, sizes, and configurations to suit different applications, from simple linear actuators to more complex rotary and oscillating designs. They are commonly used in industries such as aerospace, automotive, robotics, and manufacturing, where precise and reliable motion control is critical. With their versatility and performance, actuator blocks play a vital role in powering the machines and systems that drive our modern world.

At a Glance: Our Top Picks

Belimo ZG-GMA Crank Arm Adaptor Kit Cover #TOP 1
Belimo ZG-GMA Crank Arm Adaptor Kit
ftb score rating icon 9.9
Siemens 3SB3400-0C Actuator Block Cover #TOP 2
Siemens 3SB3400-0C Actuator Block
ftb score rating icon 9.8
Siemens 3SB3400-0A Actuator Block Cover #TOP 3
Siemens 3SB3400-0A Actuator Block
ftb score rating icon 9.6

Top 10 Actuator Blocks

#TOP 1

Belimo ZG-GMA Crank Arm Adaptor Kit

ZG-GMA
Belimo ZG-GMA Crank Arm Adaptor Kit Cover
Belimo ZG-GMA Crank Arm Adaptor Kit, Includes Mounting Hardware

The Belimo Crank Arm Kit is a handy electronic component designed to help you easily adapt actuator blocks. Compact in size, it measures just 2.7 cm by 14.6 cm by 21.6 cm, making it convenient to store and handle without taking up much space. Weighing only 1 pound, it’s lightweight, so you won’t struggle with heavy parts during installation. Manufactured in the United States, you can trust its quality and reliability. This kit comes complete with mounting hardware, so you have everything you need to get started right away.

What We Like
Compact dimensions
Lightweight design
Includes mounting hardware
Made in the USA
#TOP 2

Siemens 3SB3400-0C Actuator Block

3SB3400-0C
Siemens 3SB3400-0C Actuator Block Cover
Siemens 3SB3400-0C Actuator/Indicator Component Contact Block Screw Terminal 1 NC

The Siemens Actuator Block is a reliable component designed for various applications. Weighing in at just 0.75 pounds, it is lightweight and easy to handle, making installation a breeze. Its dimensions of 7.00 x 7.00 x 6.00 inches ensure it fits well in most setups. This product is in like-new condition, ensuring you receive quality performance. As part of the actuator blocks category, it offers durability and efficiency, providing users with a dependable solution for their projects.

What We Like
Lightweight design
Compact dimensions
Like-new condition
Reliable performance
#TOP 3

Siemens 3SB3400-0A Actuator Block

3SB3400-0A
White
Siemens 3SB3400-0A Actuator Block Cover
Siemens 3SB3400-0A Actuator-/Indicator Component Block with 2 Contacts Screw Terminal, 1NO+1NC, White

The Siemens Actuator Block is a reliable component designed for various applications. With its EAN code 4011209117228, you can easily identify and order this part. It comes with a worldwide warranty from Siemens, ensuring peace of mind for your purchase. The 3SB3400-0A model features two screw terminal contacts, including one normally open (NO) and one normally closed (NC), making it versatile for different wiring setups. This flexibility allows you to customize your system according to your needs, enhancing overall efficiency and functionality.

What We Like
Worldwide warranty
Two contact options
Easy identification
Flexible wiring setup
#TOP 4

Erie AG13A01A Actuator Terminal Block

AG13A01A
Multicolor
Erie AG13A01A Actuator Terminal Block Cover
Erie AG13A01A Actuator Terminal Block 24V, 1" x 1" x 1"

The Erie AG13A01A Actuator Terminal Block is a safety supply product designed for actuator blocks. It measures 1" x 1" x 1" and weighs 0.498 Kg. The package includes one unit and its dimensions are 7.7 Cms L X8.0 Cms W X14.4 Cms H.

What We Like
Compact size
Suitable for actuator blocks
Lightweight
#TOP 5

Erie AG13A02A Actuator

Erie AG13A02A Actuator Cover
Erie AG13A02A Actuator 24V 18" Leads, 1" x 1" x 1"

The Erie Actuator 24V 18" is a reliable device that includes an auxiliary and features a synchronous motor drive with spring return. It conveniently mounts directly onto the body without the need for linkages or calibration, making installation a breeze. Moreover, it is equipped with a manual override lever on normally closed actuators, offering users easy control and flexibility. This actuator is ideal for those seeking a hassle-free solution for their actuation needs, ensuring smooth operation and efficient performance.

What We Like
Includes auxiliary
Spring return drive
No need for linkages
#TOP 6

Schneider Electric AG14B020 Spring Return Actuator

Schneider Electric AG14B020 Spring Return Actuator Cover
Schneider Electric AG14B020 Tac Erie Spring Return Two-Position General Close-Off Actuator Without End Switch, Normally Closed

The Schneider Electric Spring Actuator offers a reliable motor-driven operation combined with a spring return feature, ensuring the actuator returns to its original position without power. This setup provides you with peace of mind during power outages or system failures. It supports multiple voltage options, making it adaptable to different setups and easy to integrate into your existing system. Installation is straightforward since it mounts directly onto the valve body, eliminating the need for extra linkages or adjustments, saving you time and effort. Additionally, the manual override lever lets you control the actuator manually when needed, adding extra convenience and control.

What We Like
Synchronous motor drive
Spring return mechanism
Multiple voltage options
Direct mounting installation
Manual override lever
#TOP 7

Wieland 70.300.1040.0 Socket Insert

Wieland
70.300.1040.0
Wieland 70.300.1040.0 Socket Insert Cover
Wieland, 70.300.1040.0, Socket Insert Bas Bus10 2,5 50

The Wieland Socket Insert is designed to work seamlessly within actuator blocks, providing reliable control solutions. It offers easy integration with Wieland control systems, making it a handy accessory for your electrical setups. This product ensures secure connections, which can enhance the safety and efficiency of your projects. By choosing the Wieland Socket Insert, you benefit from a trusted brand known for quality and compatibility, helping you achieve smooth operation in your control and accessory needs.

What We Like
Reliable control integration
Secure connection support
Trusted brand quality
Easy system compatibility
#TOP 8

Allen-Bradley 1492-H Terminal Block Pack

1492-H
Black
Allen-Bradley 1492-H Terminal Block Pack Cover
Allen Bradley 1492-H Terminal Block (Pack of 10)

The Allen-Bradley Terminal Blocks offer a reliable solution for your electrical connections. Designed to handle up to 500 volts, these actuator blocks ensure safe and efficient wiring for various applications. As part of the trusted Allen-Bradley brand, you can count on quality and durability. This pack of 10 terminal blocks provides you with enough components for multiple projects or replacements, making your work more convenient and cost-effective. Whether you're organizing wiring or maintaining equipment, these terminal blocks help keep your setup secure and organized.

What We Like
High voltage capacity
Pack of 10 units
Reliable brand quality
Actuator block category
#TOP 9

uxcell MBKKB2.5 DIN Rail Terminal Block

MBKKB2.5
Grey
uxcell MBKKB2.5 DIN Rail Terminal Block Cover
uxcell 10Pcs MBKKB2.5 DIN Rail Mount Double-Level Terminal Block 500V 2.5mm2 Cable Gray

The uxcell DIN Rail Terminal is designed to handle wires up to 2.5mm², making it suitable for a range of electrical projects where reliable connections are needed. It supports up to 500 volts, ensuring safety and stability in your installations. The terminal block comes in a gray color, which helps it blend seamlessly into most setups without standing out. Weighing just 113 grams, it’s lightweight and easy to manage during installation. With a sturdy build from plastic and metal materials, this terminal block offers durability you can count on in your electrical work.

What We Like
Supports 500V voltage
Fits 2.5mm² wire
Lightweight design
Durable plastic and metal
Neutral gray color
#TOP 10

Honeywell ML6161B2024 Direct Coupled Damper Actuator

ML6161B2024
Honeywell ML6161B2024 Direct Coupled Damper Actuator Cover
Honeywell ML6161B2024 Direct Coupled Damper Actuator, 1.8V

The Honeywell ML6161B2024 Direct Coupled Damper Actuator, also known as the Honeywell Damper Actuator, is a versatile and reliable HVAC device. With its compact size of 5.55 inches high, 3.39 inches wide, and 2.52 inches deep, it can easily fit into various systems. Made of steel plate and plenum rated plastic, this actuator ensures durability and safety. It is designed to regulate the airflow in HVAC systems, making it easier to control the temperature and ventilation in your home or office. With the Honeywell Damper Actuator, you can enjoy a comfortable and energy-efficient environment. Its high-quality construction and reliable performance make it an excellent choice for your HVAC needs.

What We Like
Compact Size
Durable Construction
Efficient Airflow Regulation
Buying Guide Image

Frequently Asked Questions (FAQs)

1. Do actuated blocks count as walls?

No, actuated blocks do not count as walls for NPC housing. If a house has actuated blocks as part of its walls, it will become invalid for NPC housing.

2. What are the three types of actuator?

Actuators can be categorized into three types: hydraulic, pneumatic, and electric. Each type has its advantages, including high reliability, simplicity of utilization, easier maintenance, and greater precision of positioning.

3. What happens when an actuator fails?

When an actuator fails, there are several signs and symptoms to look out for. These include a flashing engine management light, complete loss of power leading to the vehicle entering limp mode, and intermittent low pressure. If any of these symptoms occur, it is likely that the actuator has become faulty or failed.

4. What is the most common actuator?

The most common type of actuator is electrical. Electrical actuators convert electrical energy from DC or AC into mechanical energy. They are widely used due to their clean and readily available technology. Electrical actuators are popular in various industries and applications, including multi-turn valves.

Editor's Notes

During our actuator block research, we found 24 actuator block products and shortlisted 10 quality products. We collected and analyzed 3,967 customer reviews through our big data system to write the actuator blocks list. We found that most customers choose actuator blocks with an average price of $51.72.

The actuator blocks are available for purchase. We have researched hundreds of brands and picked the top brands of actuator blocks, including Belimo, SIEMENS, Schneider Electric, Wieland, Allen-Bradley. The seller of top 1 product has received honest feedback from 1,009 consumers with an average rating of 4.4.

Written by
Brian Howie Avatar

Brian Howie is a content writer and senior industrial designer. After graduation from Westminster College, he has been engaged in product design and manufacturing for 18 years. Brian Howie has always found great pleasure in designing industrial products and sharing his ideas and experience online.