ABB AX150-30-11-80 150A 3P AC Contactor 24V Coil

The ABB AX150-30-11-80 is a robust 150A, 3-pole AC contactor designed for demanding industrial applications. Featuring a 24V AC coil, it ensures reliable control of 3-phase motors and power circuits up to 690V AC. Its compact, block-type design facilitates easy integration, and it comes with one built-in auxiliary contact (1 NO/1 NC configuration), with additional auxiliary contacts available for expanded functionality. The AX150 series offers dependable performance, a modern aesthetic, and compatibility with a wide range of accessories, positioning it as a competitive choice for motor control and power switching.

Product Specifications

| Parameter                      | Specification                               |

| :----------------------------- | :------------------------------------------ |

| Model                          | AX150-30-11-80                              |

| Rated Operational Current (AC-1) | 150 A (at 220/230/240 V, 55°C)              |

| Rated Operational Current (AC-3) | 150 A (at 415 V, 55°C); 45 kW (at 220/230/240 V) |

| Number of Poles                | 3                                           |

| Coil Voltage                   | 220-230V AC (50/60 Hz)                      |

| Auxiliary Contacts             | 1 NO + 1 NC                                 |

| Conventional Free-air Thermal Current (Ith) | 190 A (at 40°C)                            |

| Rated Insulation Voltage (Ui)  | 1000 V                                      |

| Rated Impulse Withstand Voltage (Uimp) | 8 kV                                        |

| Product Net Weight             | 1.9 kg                                      |

| Dimensions (Net Width/Depth/Height) | 102 mm / 123.5 mm / 148 mm                  |

Core Features & Market Positioning

The ABB AX150-30-11-80 contactor distinguishes itself through its reliable performance and modern, compact design, key attributes of the AX150 range. It is engineered for straightforward integration into various control panels. The inclusion of a standard 1 NO + 1 NC auxiliary contact offers immediate control feedback, with the flexibility to expand with add-on blocks for more complex logic. This focus on practical design and dependable operation places the AX150 series as a strong contender in the industrial automation market, providing a balance of functionality and cost-effectiveness for essential motor control applications. Its ability to handle significant power (up to 150A AC-1 and 75kW AC-3 at 400V) underscores its market suitability for robust industrial environments.

Key Application Scenarios

This ABB AX150-30-11-80 contactor is primarily employed for the control of three-phase motors and general power circuits up to 690V AC. Its robust construction and high current rating make it ideal for applications such as motor starting, load shedding, and power distribution in manufacturing plants, HVAC systems, and pump control systems. Industries that frequently utilize this type of contactor include general manufacturing, building automation, and water treatment facilities where reliable and durable motor control is paramount. The 220-230V AC coil voltage is standard for many control circuits, ensuring broad compatibility.

Practical System Integration Guidance

Integrating the ABB AX150-30-11-80 into a control system is streamlined due to its block-type design and standard terminal configurations. Installation typically involves DIN rail mounting or direct panel mounting, secured firmly to prevent vibration-related issues. Wiring the main power terminals should be performed according to the rated voltage and current, ensuring proper termination torque for safety and conductivity. The control circuit for the 220-230V AC coil requires connection to a suitable power source. For expanded functionality, optional auxiliary contact blocks can be easily added to the front or side of the contactor, facilitating integration with PLCs or other control devices for status monitoring and interlocking. Users should always refer to the official ABB installation manuals for precise wiring diagrams and safety precautions.

Operation and Risk Mitigation

Proper operation of the AX150-30-11-80 contactor involves ensuring it is correctly sized for the load and that the coil voltage supply is within the specified limits (220-230V AC). Overloading the contactor beyond its AC-3 or AC-1 ratings can lead to premature failure or hazardous situations. It is crucial to implement appropriate overcurrent protection, such as thermal or electronic overload relays, to safeguard connected motors and circuits. Ensure the ambient operating temperature does not exceed the specified limits, as this can affect performance and lifespan. Regular visual inspections for signs of wear, overheating, or arcing are recommended. In case of malfunction, the most common issues relate to coil failure or contact wear, which can often be diagnosed by checking for continuity and proper actuation.

Scalability & Long-Term Value

The ABB AX150-30-11-80 contactor, as part of the broader AX150 series, offers inherent scalability through its compatibility with a wide array of ABB accessories. This includes various auxiliary contact blocks for expanded signaling and interlocking, timer functions, and surge suppressors for enhanced system protection. While direct digital integration capabilities like IIoT are not a primary feature of this specific contactor model, its reliable performance in fundamental switching tasks provides a stable foundation for modern control systems. Upgrading or expanding control functionalities can often be achieved by adding external smart devices that interface with the contactor's control or auxiliary contacts, ensuring the long-term value and adaptability of the installed base.

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Frequently Asked Questions (FAQs)

1. What is the rated operational current for the ABB AX150-30-11-80 contactor?

The ABB AX150-30-11-80 contactor is rated for 150 Amperes under AC-1 conditions at 220-240V and 55°C.

It can handle 150 Amperes under AC-3 conditions at 415V and 55°C.

For motor power, it supports up to 75 kW at 400V (AC-3) and 45 kW at 220-240V (AC-3).

2. What is the coil voltage specification for the ABB AX150-30-11-80?

This contactor operates with a 220-230V AC coil.

It is designed for 50Hz and 60Hz frequency operation within this voltage range.

Ensure the control circuit power supply matches this specification to prevent malfunction.

3. How many auxiliary contacts does the AX150-30-11-80 have, and can they be expanded?

The AX150-30-11-80 comes with one built-in auxiliary contact that is normally open (NO) and one that is normally closed (NC).

Additional auxiliary contact blocks can be mounted on the front or side of the contactor.

This allows for flexible expansion to accommodate more complex control and signaling needs.

4. What is the AC-3 power rating for motor control with this contactor?

For 220-230/240V systems, the AC-3 power rating is 45 kW.

At 380-400V, the AC-3 power rating is 75 kW.

Higher voltage ratings like 690V also support a 75 kW AC-3 power rating.

5. What are the physical dimensions and weight of the ABB AX150-30-11-80?

The contactor has a net width of 102 mm.

Its net depth is 123.5 mm and its net height is 148 mm.

The product's net weight is approximately 1.9 kg.

6. Can this contactor be used for applications other than motor control?

Yes, AX150 contactors are versatile and can be used for various other applications.

These include isolation, bypass circuits, and general power control for lighting.

They are suitable for controlling power circuits up to 690V AC.

7. What is the conventional free-air thermal current (Ith) for this model?

The conventional free-air thermal current (Ith) for the AX150-30-11-80 is 190 A at 40°C.

At 55°C, the Ith is 145 A, and at 70°C, it is 130 A.

This rating is important for applications where the contactor may not be switching continuously.

8. What is the rated insulation voltage and impulse withstand voltage?

The rated insulation voltage (Ui) for the main circuit is 1000 V.

The rated impulse withstand voltage (Uimp) is 8 kV.

These specifications ensure the contactor's safety and reliability in high-voltage environments.

9. What is the maximum electrical switching frequency for the AX150-30-11-80?

The maximum electrical switching frequency according to IEC 60947-4-1 is 300 cycles per hour.

This specification applies to the main circuit under defined conditions.

It is essential for determining the contactor's suitability for frequent switching applications.

10. What warranty is typically offered with the ABB AX150-30-11-80?

Many suppliers offer a 1-year warranty on this ABB contactor.

Some distributors, like Automation-Warehouse, provide a 3-year warranty for added peace of mind.

Warranty coverage typically addresses mechanical defects and operational failures not caused by improper installation or misuse.