ABB Auxiliary Contact Block, 4 Contact, 3 NO/1 NC, CA4-31E, Front, 6 A, 690V, 1SBN010140R1031

This auxiliary contact Block is an add‑on switching device designed to extend a contactor’s signalling and control capabilities in industrial electrical systems. It provides supplementary contacts for monitoring and interlocking functions, mounted at the front of the host device to keep control wiring accessible and organised.

• 4P contact arrangement delivers expanded switching options for control circuits
• 3NO and 1NC layout enables both signalling and safety monitoring
• 6A operational current supports modest control‑loads and indicator circuits
• 690V rated insulation handles high‑voltage control environments
• Screw terminals permit secure conductor connection with easy maintenance
• Mechanical life of 3600 cycles ensures predictable switching longevity

• Suitable for contactor status feedback in motor control panels
• Ideal for interlock signalling in industrial automation systems
• Used with control relays for machine sequence monitoring
• Can be used for auxiliary switching in distribution boards

It is designed for front mounting so it attaches to the front face of compatible contactors, allowing direct access to control terminals without panel removal.

It complies with IEC 60947‑5‑1 and holds UL, CSA and VDE 0110 (Gr.C) recognitions, supporting use in various regulatory environments.

Four discrete contacts are provided, arranged to supply three normally open circuits and one normally closed circuit for mixed‑control requirements.

Screw‑type terminals are fitted to secure wiring and facilitate routine inspection or replacement.