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
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.
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.
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) |
Product Images
Related Products
| CAL16-31 | CAL16-31-20 |
| CAL19-31 | CAL19-31-20 |
| CAL22-31 | CAL22-31-70 |
| CAL32-31 | CAL32-31-30 |
| CAL40-31 | CT16-31 |
| CA12-11 | CT19-31 |
| CA09-11 | LAA-16 |
| CAL16-11 | LAD-16 |
| CAL19-11 | LAH-16 |
| CAL22-11 | 1SFA401020R1631 |
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