CA5X.2-11 ABB Thermal overload relay Provide reliable motor protection

CA5X.2-11 ABB Thermal overload relay Provide reliable motor protection

Product Overview

The ABB CA5X.2-11 is a compact thermal overload relay, specifically designed to protect small three-phase asynchronous motors from overload and phase loss faults. This model is equipped with one normally open (NO) auxiliary contact and is suitable for use in conjunction with ABB AF series contactors to form a complete motor starting and protection unit. With its high reliability, modular design and DIN rail mounting method, it is widely used in industrial control cabinets, building automation systems and OEM equipment.

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.2-11
Series ABB CA5X series thermal overload relays
Rated working current range (AC-3) : 0.1-1.6 A
Rated insulation voltage Ui 690 V AC
Rated working voltage Ue 230/400/690 V AC (50/60 Hz)
Auxiliary contact configuration 1 NO (Always 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)
Operating temperature range: -25°C to +55°C
Storage temperature: -40°C to +85°C
Altitude ≤ 2000 m (no volume reduction)

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.

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