Auxiliary contact Schneider Electric A9C20844 — multicolour, AC contact rating 240 V

Schneider Electric A9C20844 auxiliary contact provides additional switching contacts for control and signalling circuits in industrial and commercial electrical installations. The unit features a multicolour housing for quick visual identification and is designed for use with compatible contactors and motor starters, allowing expansion of auxiliary functions without modifying primary devices. The contact is rated for AC operation at 240 V, making it suitable for standard control voltages in automation panels and machine control systems.

Advantages

The multicolour housing simplifies identification of contact function and wiring in crowded control cabinets, reducing troubleshooting time. Compact construction allows mounting on compatible contactors and motor starters to increase the number of auxiliary contacts without additional panel space. The contact is specified for AC 240 V operation, ensuring compatibility with common control circuits and signalling loads in industrial and commercial environments.

Suitable for

• Expanding auxiliary contacts on contactors and motor starters
• Electrical control panels and automation cabinets
• Signalling and interlock circuits in machinery
• Retrofit or upgrade projects where additional switching contacts are required

Key specifications

• Contact type: auxiliary switching contact for integration with contactors and starters
• Rated AC voltage: 240 V for contact operation
• Housing: multicolour for visual identification
• Mounting: designed to attach to compatible contactor or starter assemblies
• Function: provides additional control and signalling switching points

How to use

Install the auxiliary contact onto a compatible contactor or motor starter following the equipment manufacturer's mounting instructions. Ensure the main device is de-energised before mechanical attachment and wiring. Connect control and signalling conductors to the provided terminals according to the schematic of the control circuit, observing polarity and contact configuration. After wiring, restore power and verify correct operation by actuating the main device and checking the auxiliary contact response in the control or signalling circuit.

Usage recommendations

Verify compatibility with the contactor or motor starter model before installation, and follow local electrical codes and safety procedures. Use the multicolour housing as a visual aid when documenting wiring diagrams and labelling terminals in the control cabinet.