CA5X-31M ABB Thermal overload relay Thermal overload protection small medium sized motors

CA5X-31M ABB Thermal overload relay Thermal overload protection small medium sized motors

Product Overview

The ABB CA5X-31M is a highly efficient and reliable thermal overload relay, specifically designed to protect small and medium-sized three-phase asynchronous motors from overload and phase loss faults. This model supports 1 normally open auxiliary contact and 1 normally closed auxiliary contact. It features a compact design and high reliability, and is widely used in industrial automation, building automation and infrastructure projects. It can be used in conjunction with contactors to provide a comprehensive motor protection solution.

Key features

High reliability and long service life
It can withstand up to one million operation cycles under the AC-3 usage category.
The mechanical life exceeds 15 million cycles, meeting the demands of various harsh environments.
Safety and Environmental Protection
Vacuum arc extinguishing technology is adopted to ensure no pollution emissions and meet environmental protection requirements.
It offers outstanding electrical isolation performance to ensure operational safety.
Modular design, flexible expansion
It can be assembled with various accessories: auxiliary contact modules, surge suppressors, mechanical interlock devices, etc.
It is easy to build complex control logic without the need for additional relays.
Safety and compliance
Passed the major global certification systems, including IEC, UL, CSA, CE, etc.
It complies with international and national standards such as IEC/EN 62271-102 and GB/T 11022.
Easy to install
Supports in-cabinet installation to save space.
Supports screw crimping or spring clamping terminal blocks, and is compatible with various wire specifications

Basic parameters
Model: CA5X-31M
Series: ABB CA series thermal overload relays
Number of poles: 3P (main contact), 1NO + 1NC (auxiliary contact)
Rated working current range: 0.1-32 A
Rated insulation voltage Ui: 690 V AC
Rated working voltage Ue: 230/400/690 V AC (50/60 Hz)

Typical application scenarios
Industrial automation
It is used for the starting, stopping and protection of medium-voltage motors, such as water pumps, fans, compressors and other equipment.
Power transmission and distribution
Load switching and protection in scenarios such as medium-voltage switch cabinets and substations.
Energy and infrastructure
Auxiliary control of photovoltaic inverters, pumping stations of water treatment plants, and backup power switching systems.
OEM equipment integration
As a standard component embedded in the OEM control cabinet, it enhances the reliability of the entire machine.

Product Images

Related Products

We are a global trading company specializing in PLC automation and industrial controls.

Xiamen Changxuyuan Trading Co., Ltd. is a leading global online wholesale supplier, offering a wide selection of new and discontinued products. We are committed to providing a wide range of high-quality products to our global customers at highly competitive factory direct prices, fast delivery times, and first-class customer service.

Our goal is to provide high-quality products to our global customers at highly competitive factory direct prices.

The more you buy, the more you save! Our website is available in multiple major languages ​​to meet the needs of our growing international customer base. Looking for low-priced, high-quality products? Xiamen Changxuyuan Trading Co., Ltd. is your ideal choice, offering high-quality products, low prices, fast delivery, and professional service—all backed by our strong global presence.

Four Reasons to Choose Us
1. We have the world's largest selection of industrial spare parts, including a wide variety of new and discontinued products.
2. We update our product information daily.
3. We have a diverse buyer base from around the world, constantly searching for high-quality, low-priced products to meet the diverse needs of our large global customer base.

4. We offer a wide variety of styles at the lowest online prices.

Factory Prices
Leveraging our extensive and strong partnerships with domestic and international manufacturers, we are able to offer high-quality products at exceptionally low factory prices. We are committed to working with global wholesalers to secure the best prices. If you are interested in our products, please feel free to contact us. We are confident that you will enjoy all of our exquisite products at wholesale prices.

Fast Shipping/Professional Packaging
We have established long-term partnerships with UPS, FedEx, DHL, and other leading global carriers, enabling us to offer world-class shipping options. Our dedicated warehouse staff will meticulously process your order, ensuring packaging according to our strict and rigorous standards. Your product will be carefully inspected and securely packaged before shipment. We ship to thousands of customers in dozens of countries around the world every day, demonstrating our commitment as a leading global industrial spare parts company, ensuring the highest level of responsiveness at all times.

Best Customer Service
We value our relationships with every customer, and our dedicated customer service team is always here to assist you. Due to the vast product offering, all staff members are fully trained and familiar with the latest trends and products. We also offer a dedicated online chat service to answer all your questions and respond immediately. Your satisfaction is always our top priority.

Brands