ABB CA5-01 Thermal Overload Relay with 0.1-1.6A Rated Current for Reliable Motor Protection and High-Precision Protection

CA5-01 ABB Thermal overload relay Provide reliable motor protection

Product Overview

ABB CA5-01 is a thermal overload relay in the ABB CA5 series specifically designed for extremely small power three-phase asynchronous motors, with a rated working current range of 0.1A to 1.6A. This product integrates one normally open (NO) auxiliary contact and features dual protection functions of overload and phase loss. It is suitable for control cabinet applications with high requirements for space and precision. The CA5-01 can be flexibly combined with ABB A series or AF series contactors to form a compact motor starting protection unit, which is widely used in automation equipment, building systems and OEM complete sets of equipment.

Key features

✅ high-precision protection

Adopting the principle of bimetallic strip thermal sensing, it accurately responds to motor overload. The tripping characteristic complies with the IEC/EN 60947-4-1 standard (Class 10A).

✅ phase loss protection function

It is equipped with a built-in three-phase current imbalance detection mechanism. When any phase is disconnected, it will automatically trip to prevent the motor from burning out due to single-phase operation.

✅ modularized & space-saving

Standard width of 45mm, supports 35mm DIN rail installation, and can also be directly assembled on the right side of compatible contactors, saving cabinet space.

✅ security compliance

It has passed international certifications such as CE, UL, CSA, CCC and TUV, and complies with the RoHS and REACH environmental protection directives.

✅ easy to maintain

The transparent window allows for an intuitive view of the contact status. The reset button is easy to operate and supports both automatic and manual reset (default is automatic reset).

Basic parameters
Model CA5-01
Series ABB CA5 thermal overload relay
Rated operating current (Ie) 0.1-1.6 A (AC- 3,400 V)
Rated insulation voltage (Ui) : 690 V AC
Rated operating voltage (Ue) 230/400/690 V AC (50/60 Hz)
Auxiliary contact 1 NO (normally open)
The deduction level is Class 10A
Reset mode: Automatic reset (Manual reset attachment is available)
Protection grade IP20 (front)
Installation method: 35mm DIN rail (EN 60715) or assembled into a contactor
Operating temperature: -25°C to +55°C
Storage temperature: -40°C to +85°C
Altitude ≤ 2000 m (no volume reduction)
Dimensions (width × height × depth) : 45mm × 78mm × 78mm
Weight ≈ 0.1 kg

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