AX18-30-01-80 ABB Ac contactor Compact AC control solution Small and medium sized motors load control

AX18-30-01-80 ABB Ac contactor Compact AC control solution Small and medium sized motors load control

Product Overview

The ABB AX18-30-01-80 is a high-performance modular AC contactor in the ABB AX series, designed for small and medium-sized automation systems. This product is specially designed for frequently started and stopped three-phase motors and similar loads. It ensures high reliability while taking into account compact size and low power consumption features, and is widely used in industrial control cabinets, building equipment and energy infrastructure.

This model is equipped with 3 sets of main contacts and 1 normally open (NO) auxiliary contact. The rated working current is 18 amperes (AC-3 category, under 400V conditions), and the control coil voltage is 24V DC (DC 24V). It is very suitable for direct integration with PLC, microcontroller or low-voltage DC control system.

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.
Energy conservation and environmental protection
It adopts low-power electronic holding coil technology, which is energy-saving and highly efficient.
Low standby power consumption, in compliance with international standards such as IEC 60947-4-1 and RoHS/REACH regulations.
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 UL, CSA, CE, CCC, TUV, etc.
It complies with international and national standards such as IEC/EN 60947-4-1 and GB 14048.4.

Summary of Technical Specifications
This contactor has a rated insulation voltage of 690 V AC and is suitable for three-phase AC systems with a maximum voltage of 690 V. Under the AC-3 usage category (typically used for starting and stopping squirrel-cage motors), the rated current is 18 A at 400 V. If used for resistive loads (AC-1 category, such as heaters or lighting), it can carry 25 A at the same voltage.

The product is installed on a standard 35mm DIN rail, with an overall width of only 45mm, a height of 85mm, a depth of 90mm, and weighs approximately 300 grams. The front is equipped with a transparent status window, which facilitates visual confirmation of the contact's engagement/release status. The operating temperature range is from -25°C to +60°C, and it can operate without capacity reduction at an altitude of less than 2000 meters

Typical application scenarios

AX18-30-01-80 is widely used to drive small motors with a power not exceeding 7.5kW (400V three-phase), and is commonly found in fans, water pumps, compressors, conveyor belts and packaging machinery. Its built-in normally open auxiliary contacts can be used to feed back the operating status of the contactor to the PLC or HMI, achieving remote monitoring, interlock protection or fault diagnosis.

Due to the adoption of DC 24V control coils, this model is particularly suitable for modern automation systems - it can be directly driven by the output of PLC transistors, eliminating the need for intermediate relays, simplifying wiring and enhancing response speed.

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