ABB Auxiliary Contact Block, AUX-SA-C 1 CO, 250V, 1SDA066429R1

ABB AUX-SA-C Series Auxiliary Contact Block, 250V Rated Voltage, 1 CO Contact Configuration - 1SDA066429R1

This auxiliary contact Block provides an add‑on switching contact for contactor control circuits in industrial electrical panels. It is designed to furnish an additional changeover contact for signalling or interlocking tasks within control systems used alongside XT2 and XT4 contactors. The unit is suitable for integration into motor control and automation assemblies requiring a compact, low‑voltage signalling contact.

Features and Benefits:

• Single changeover contact for simple auxiliary signalling
  Rated for operation at 250V to match control circuit voltages
  Conforms to IEC 60947-2 for standardised electrical behaviour
  Compatible mounting with XT2 and XT4 contactors for easy integration
  Compact form supporting space‑efficient control panels

Applications

• Suitable for adding status feedback to contactor coils in motor control
  Ideal for use in automation cabinets requiring extra changeover contacts
  Used with XT2 series contactors to extend switching capability
  Can be used for interlock and alarm circuits in electrical installations

What contact arrangement does it provide for control circuits?

It supplies a single changeover contact arrangement, enabling one common contact to switch between two outputs for signalling or interlocking.

Which standards govern its electrical performance?

Its electrical characteristics comply with IEC 60947-2 requirements, ensuring consistent switching behaviour under specified test conditions.

How does it integrate with existing contactors on site?

The unit is designed for direct compatibility with XT2 and XT4 contactor families, allowing straightforward attachment to extend contact functionality.

What operating voltage should be used for reliable switching?

Control and signalling circuits should be operated at up to 250 V, matching the contact block's voltage rating for reliable operation.