Find similar products by selecting one or more attributes.

Select all	Attribute	Value
	Brand	ABB
	Number of Contacts	1
	Product Type	Auxiliary Contact
	Normal State Configuration	1 CO
	Mount Type	DIN Rail
	Pole and Throw Configuration	1 NO/1 NC
	Contact Voltage	250V ac/dc
	Standards/Approvals	IEC 60947-2

	Select all
	Brand ABB
	Number of Contacts 1
	Product Type Auxiliary Contact
	Normal State Configuration 1 CO
	Mount Type DIN Rail
	Pole and Throw Configuration 1 NO/1 NC
	Contact Voltage 250V ac/dc
	Standards/Approvals IEC 60947-2

Datasheet

ABB Auxiliary Contact, 250V Contact Voltage, DIN Rail Mount Type - 1SDA066422R1

This auxiliary contact provides a changeover switching function for auxiliary signalling and control circuits in low-voltage installations. It is designed for DIN-rail mounting alongside moulded-case circuit breakers and contactors in industrial control panels, handling both AC and DC control voltages up to 250 V.

Features & Benefits

• Single changeover contact gives combined normally open and normally closed outputs
• Rated for 250V operation suitable for AC and DC control circuits
• DIN-rail mounting format enables straightforward panel integration
• Complies with IEC 60947-2 supporting standardised electrical characteristics
• Lightweight construction reduces additional load on rail-mounted assemblies

Applications

• Suitable for adding auxiliary signalling to Tmax XT breakers and contactors
• Used with control relays for status feedback in automation racks
• Ideal for monitoring breaker open/closed position in switchgear panels
• Can be used for interlocking functions in motor control systems

How is the unit supplied for installation?

It is packaged as a single auxiliary contact module and intended to be fitted directly to a DIN rail adjacent to the primary device.

What contact configuration does it provide?

The device offers a single changeover arrangement delivering one normally open and one normally closed contact within the same module.

Which standards govern its electrical characteristics?

Its design follows IEC 60947-2 principles for auxiliary switching performance in low-voltage switchgear.

Can it be used as a replacement part for existing contactors?

Yes, it functions as an accessory module compatible with the listed Tmax XT contactor family and similar DIN-rail assemblies.

ABB Auxiliary Contact, 1 Contact, 1 CO, DIN Rail, 250V ac/dc, 1SDA066422R1