ABB Auxiliary Contact, 4 Contact, 3 NO/1 NC, CA4, Front, 6 A, 600 V dc, 690V ac, 1SBN010140R1331 CA4-31U

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RS Stock No.:
711-6373
Mfr. Part No.:
1SBN010140R1331 CA4-31U
Manufacturer:
ABB
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Brand

ABB

Number of Contacts

4

Product Type

Auxiliary Contact

Normal State Configuration

3 NO/1 NC

Series

CA4

Mount Type

Front

Contact Current

6A

Terminal Type

Screw

Pole and Throw Configuration

4

Contact Voltage

600, 690V dc

Mechanical Durability

10Mcycles

Rated Insulation Voltage Ui

690V

Mounting Location

Front Side

Operational Current Ie

6A

Minimum Operating Temperature

-40°C

Maximum Operating Temperature

70°C

Standards/Approvals

No

ABB CA4 Series Auxiliary Contact, 6A Operational Current, 690V Rated Insulation Voltage - 1SBN010140R1331 CA4-31U


This auxiliary contact provides additional switching contacts for contactor control circuits in industrial electrical systems. It mounts on the front side of compatible contactors and supplies instantaneous changeover contacts for signalling, interlock or auxiliary control functions in automation and electrical installations.

Features & Benefits


• 4-pole configuration delivering versatile auxiliary switching capability
• 3NO1NC arrangement supplying both make and break contacts
• Rated for 6A continuous switching to support control circuits
• Insulation rating 690VUi enabling high-voltage auxiliary use
• Mechanical endurance rated at 10Mcycles for long service life
• Operates across −40°C to 70°C for wide ambient tolerance

**Applications**


• Suitable for retrofitting control panels requiring additional contacts
• Used with AF09–AF16 contactors to extend auxiliary functions
• Ideal for signalling and interlocking in automation systems
• Can be used for DC control circuits up to 600V in select installations

How are electrical connections MADE to the unit?


Connections use screw terminals compatible with flexible and rigid conductors including ferrules specified for 0.75–2.5mm² and 1–2.5mm² ranges.

What switching duty can be expected for AC control applications?


AC-15 operational currents vary by voltage

typical values include 6A at 24/127V, 4A at 220/240V and 3A at 400/440V for control loads.

Which contactor installation location is required for fitting?


It is designed for front mounting on the contactor body and aligns with Terminal markings for three-pole contactors.

What short-time withstand capability does it offer?


The unit supports short-time currents such as 140A for 0.1s and 100A for 1s in auxiliary circuits.

What level of protection do the terminals provide?


Auxiliary terminals are rated to IP20 in accordance with relevant enclosure standards.

Standards

UL 508, CSA C22.2 N14