Contactor CJX93P40A for heat pump compressor

This CJX93P40A Compressor Contactor is designed for a rated current of 40A. When voltage is applied to the control coil, the contactor switches, closing the main contacts. It is important to note that the voltage in the control circuit must be 230V. This contactor is suitable for starting compressors heat pumps with fixed speed. It can also be used as a switch for high-power peripheral equipment, such as circulation pumps, electric heaters and other equipment.

Nominal characteristics conversion table

Working voltage	Rated current		Rated power
Contactor CJX93P40A for compressor	AC3	AC4	AC3	AC4
50Hz, 220/230V	–	–	11 kW	–
50Hz, 380/400V	40A	18.5A	18,5 kW	7,5 kW
50Hz, 660/690V	34A	9A	30 kW	7,5 kW

CJX93P40A contactor for compressor. Nominal characteristics depending on load

The connected load and the supply voltage directly influence the rated characteristics of the contactor. For example, the rated current 40A, indicated on the housing and in the device name, refers to standard use — control of electric motors with three-phase 380V power supply in the category AC-3.

Task categories

This CJX93P40A Compressor Contactor is designed for a standard load of 18,5 kWFor less demanding applications, such as incandescent bulbs or electric resistances (TENs), the most suitable category is AC-1. On the other hand, if the device controls motors with heavy mechanisms or changes in the direction of rotation, the category is preferable. AC-4.

Contact and magnet construction

Contactor CJX93P40А uses the classic double-break scheme. In addition, the central moving part is equipped with a spring to increase reliability. Manufacturers have provided for fastening the magnetic plates in 12 places, six of them by hammering, to increase the strength of the structure. To reduce vibrations, rubber dampers have been added to the fixed part, and over-tightened coils prevent the armature from rebounding when the phase crosses zero.

Auxiliary contacts NC1

In control circuits, where currents and voltages are low, switching can be difficult due to the oxide film on the contacts. During switching, the spring-loaded moving part moves, cleaning the top layer of the contacts. As a result, the perpendicular markings increase friction and provide even more effective cleaning.

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CJX9 contactor series

CJX93P40A compressor contactors are very popular due to their reliable construction based on proven solutions. In addition, these devices are excellent for switching electrical circuits in various industrial equipment.

If you combine the CJX93P40A Compressor Contactor with thermal relays, you can protect electrical equipment from overload. The series covers a wide range of rated currents, from 9 to 95A, and offers functional expansion through additional modules:

• Time delay contactor;
• Reversible contactor;
• Electromagnetic starting relays;
• Contactor for KRM circuits;
• Multifunctional star-delta starters.

Technical features

• Circuit voltage: up to 690V.
• Network frequency: up to 60Hz.
• Control circuits: alternating or direct current (models with the letter Z support direct current).
• Control coils: voltage of 220V.
• Operating time: up to 1200 cycles per hour (category AC-3, 380/400V).
• Durability: up to 10 million switching cycles.

Thanks to these features, the CJX9 series ensures reliable and efficient operation, according to modern standards.

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