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ABB Auxiliary Contact, 4 Contact, 2 NC/2 NO, Front Mount, Screw Terminal, 6 A Contact Current, 600 V DC, 690 V AC CA4-22U

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ABB Auxiliary Contact, 4 Contact, 2 NC/2 NO, Front Mount, Screw Terminal, 6 A Contact Current, 600 V DC, 690 V AC CA4-22U

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Category Auxiliary Contacts Brand ABB Condition New

Specifications

Country of Origin	India
Brand	ABB
Model	CA4-22U
Mount Type	Front
Series	CA4
Maximum Operating Temperature	70°C
Minimum Operating Temperature	-40°C
Terminal type	Screw
Mounting Location	Front Side
Number of Contacts	4
Contact Voltage	600, 690V dc
Normal State Configuration	2 NC/2 NO
Contact Current	6A
Operational Current Ie	6A
Pole and Throw Configuration	4
Mechanical Durability	10Mcycles
Rated Insulation Voltage Ui	690V

Key Features

Provides instantaneous make/break auxiliary contacts for monitoring and control circuits.
Supports a rated contact current of 6 A suitable for typical control applications.
Rated insulation voltage of 690 V enabling use in high-voltage auxiliary applications.
Front mounting design allows quick attachment to compatible contactors.
Screw terminals ensure secure and easy wiring connections.
Mechanical durability rated at 10 million cycles reduces maintenance frequency.
Operates within a temperature range of -40°C to 70°C for diverse environments.
Ideal for status feedback on motor starters, contactors, and interlock circuits in automated machinery.

Product Description

ABB CA4-22U Auxiliary Contact is a front-mounted, four-pole switching unit designed to extend signalling and interlock capabilities of contactors in industrial control systems. It features 2 normally closed (NC) and 2 normally open (NO) contacts with a contact current rating of 6 A, making it suitable for typical control circuit requirements.

This auxiliary contact supports a rated insulation voltage of 690 V, allowing high-voltage auxiliary applications in standard industrial environments. The device employs screw terminals for secure conductor connections and ease of wiring, paired with front mounting to enable rapid attachment to compatible ABB contactors.

Designed for robustness, the CA4 series offers mechanical durability up to 10 million cycles, minimizing maintenance intervals. The contact block operates reliably across a temperature range of -40°C to 70°C, suitable for diverse climatic conditions and industrial applications.

Applications include providing status feedback on motor starters and contactors, serving interlock circuits in automated machinery panels, and auxiliary signalling within switchgear assemblies. It is specifically compatible with AF/AFC contactors ensuring terminal marking consistency.

The unit supports flexible conductors up to 2.5 mm² and rigid conductors ranging from 1 to 2.5 mm², accommodating multiple core connections with recommended ferrules. It performs effectively in DC auxiliary circuits up to 600 V with appropriate rated switching currents for various voltages.

With standards compliance including UL 508 and CSA C22.2 No. 14, the product aligns with industry safety and performance expectations. Instantaneous make/break Auxiliary Contacts for control circuits. 6 A rated contact current supports control applications.

690 V rated insulation voltage for high-voltage use. Front mounting allows swift attachment to contactors. Screw terminals offer secure wiring connections. 10 million mechanical operation cycles reduce maintenance. Wide operating temperature from -40°C to 70°C.

Suitable for motor starters and interlock circuits. Compatible with AF/AFC contactors matching terminal markings. Supports flexible and rigid conductors with ferrule recommendations. Explore more in the Automation & Control Gear category and similar ABB products to find the right solutions for your industrial automation needs on EnvMart.