CJX21810 AC Contactor is a 3pole control device with an 18 A rated main circuit and a single normally open auxiliary contact. It uses a 220230 V AC coil at 50 Hz and is designed for reliable switching of threephase loads in standard control applications. The compact, durable housing supports panel mounting and easy integration into control circuits. Key benefits Threepole main circuit for simultaneous switching of threephase loads, simplifying wiring and control logic. One normally open auxiliary contact provides a simple signaling or interlocking option for feedback to controllers or indicators. 220230 V AC coil is compatible with common control circuits and PLC outputs, enabling straightforward integration. Compact, robust construction suited for panel mounting in industrial environments, improving space efficiency in control panels. Ready for frequent switching with dependable operation, helping to protect motors, pumps, and other equipment. Key attributes Functionality: 3pole main circuit with one normally open auxiliary contact; energizes to close main contacts and activate auxiliary contact. Compatibility: coil rated for 220230 V AC at 50 Hz; compatible with standard AC control systems and PLCbased control schemes. Size: compact 3pole design intended for panel mounting and efficient use of control space. Material: housed in a durable insulating housing suitable for industrial applications. Performance: rated current of 18 A for the main circuit; suitable for common control load levels in 50 Hz systems. Two to three use cases Motor control in small machinery: used to start and stop a threephase motor, with the auxiliary contact providing a signal for a remote indicator or interlock in the control circuit. Conveyor or pump control: switches a threephase load in automation lines, with the NO auxiliary contact feeding back to a PLC input for status or fault signaling. Panelmounted control solutions: integrated into control panels for HVAC, processing, or manufacturing equipment where a reliable 3pole switch and a signaling contact are required. Notes for installation and operation Ensure the control supply is 220230 V AC at 50 Hz to match the coil rating. Mount the device securely in the control panel and wire the three main load lines to the main contacts. Use the auxiliary contact wiring to connect to indicators, interlocks, or control logic as needed.