AC Contactor CJX3-32/22/44 (3TB44) AC110V AC220V AC24V

AC Contactor CJX3-32/22/44 (3TB44) AC110V AC220V AC24V

The contactor CJX3-22 is a typical model of the CJX3 series AC contactors, widely used in industrial automation control scenarios. The following is a detailed analysis of its technical parameters, structural features, application scenarios, and selection points:

1. Structural Features

• Modular Design: Integrates main contacts, auxiliary contacts (usually 2 normally open + 2 normally closed), electromagnetic coil, and arc extinguishing system for easy maintenance and replacement.
• Arc Extinguishing System: Adopts grid-type arc extinguishing structure to quickly extinguish the arc generated during current breaking, ensuring safety.
• Installation Methods: Supports screw fixing or 35mm standard rail installation (for specifications ≤38A), adapting to standardized layout of control cabinets.

2. Working Principle

• Power-On State: When the coil is energized, it generates electromagnetic force to attract the armature, driving the main contacts to close and connect the main circuit; auxiliary contacts act synchronously to feedback control signals.
• Power-Off State: When the coil is de-energized, the armature is released by the reset spring, the contacts open, and the circuit is cut off.