CAL4-11 ABB Thermal overload relay Thermal overload protection small medium sized motors
CAL4-11 ABB Thermal overload relay Thermal overload protection small medium sized motors
ABB CAL4-11 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 one normally open auxiliary contact, 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 | CAL4-11 |
| Series | ABB CAL series thermal overload relays |
| Pole number | 1P (main contact), 1NO (auxiliary contact) |
| Rated working current range | 0.1-1.6 A |
| Rated insulation voltage Ui | 690 V AC |
| Rated working voltage Ue | 230/400/690 V AC (50/60 Hz) |
Product Images
Related Products
| CA09-11 | CA09-11-10 |
| CA09-10 | CA09-11-20 |
| CA09-01 | CA09-11-30 |
| CA12-11 | CA09-11-70 |
| CA12-10 | CA09-11-80 |
| CA12-01 | CT09-11 |
| CAL16-11 | LAA-09 |
| CAL19-11 | LAD-09 |
| CAL22-11 | LAH-09 |
| CAL32-11 | 1SFA401020R0911 |
Get in Touch
Have questions about our products or want to discuss a custom order? Our team is ready to help you.