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ABB Auxiliary Contact 4 Contacts 3 NO/1 NC Front Mount 6 A 600 V DC 690 V AC CA4-31U
Specifications
| Country of Origin | India |
|---|---|
| Brand | ABB |
| Model | CA4-31U |
| 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 | 3 NO/1 NC |
| Contact Current | 6A |
| Operational Current Ie | 6A |
| Pole and Throw Configuration | 4 |
| Mechanical Durability | 10Mcycles |
| Rated Insulation Voltage Ui | 690V |
Key Features
- Includes 4 contact points configured as 3 normally open and 1 normally closed.
- Front mount design compatible with AF09-AF16 contactors.
- Supports continuous switching current of 6 A for control circuits.
- Rated insulation voltage is 690 V Ui for high voltage applications.
- Mechanical durability rated at 10 million operating cycles.
- Operates reliably in a temperature range from -40°C to 70°C.
- Utilizes screw terminals for flexible and rigid conductor connections between 0.75 mm² to 2.5 mm².
- Capable of handling AC-15 operational currents up to 6 A at 24 - 127 V and 690 V AC.
Product Description
ABB CA4-31U Auxiliary Contact is a reliable industrial automation component providing four additional switching contacts with a 3 NO (normally open) and 1 NC (normally closed) arrangement. Designed for front mounting, this auxiliary contact is rated for an operational current of 6 A and accommodates a wide range of control voltages including 600 V DC and 690 V AC.
This auxiliary contact block is intended for use with AF09 to AF16 series contactors to extend their switching capabilities. It supports control signals, interlock functions, and auxiliary control tasks commonly found in industrial electrical systems and automation installations.
With a mechanical durability of 10 million cycles, the CA4-31U offers long service life for demanding environments. It is designed to operate within ambient temperatures ranging from -40°C to 70°C, making it suitable for varied industrial conditions. Installation is simplified by front-side mounting and screw terminal connections, compatible with conductor sizes ranging from 0.75 mm² to 2.5 mm², including ferrules.
The unit withstands short-time currents up to 140 A for 0.1 seconds, which provides added protection during transient conditions. The UL 508 and CSA C22.2 N14 standards compliance ensure industrial safety and reliability. Terminal protection meets IP20 requirements, safeguarding against accidental contact or ingress of foreign objects.
4-pole configuration with 3 NO and 1 NC contacts for flexible switching needs. 6 A rated continuous operational current supports typical control circuit loads. Insulation rated for 690 V Ui permits use in high-voltage control systems.
Mechanical lifespan of 10 million operations ensures durability and reliability. Temperature tolerance from -40°C to 70°C suits harsh industrial environments. Compatible with screw terminal connections for straightforward installation.
Suitable for DC control voltage applications up to 600 V. Supports AC-15 control duty with variable current ratings based on voltage. Front mounting design fits standard contactor profiles. IP20 rated auxiliary terminals provide safe electrical enclosure protection.
This ABB Auxiliary Contact block is ideal for industrial automation, manufacturing control panels, electrical signaling, and interlocking functions, providing dependable auxiliary switching in complex systems. Browse more from ABB to complete your control gear solutions.
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Frequently Asked Questions
The CA4-31U auxiliary contact has an operational current rating of 6 A.
This model features a configuration of 3 normally open (NO) contacts and 1 normally closed (NC) contact, totaling 4 contacts.
The rated insulation voltage for the CA4-31U is 690 V, making it suitable for high-voltage applications.
It can operate reliably within a temperature range from -40°C to 70°C.
The mechanical durability of the CA4-31U is rated at 10 million operating cycles.
It utilizes screw terminals for flexible and rigid conductor connections, accommodating conductor sizes from 0.75 mm² to 2.5 mm².
Yes, it is capable of handling DC control voltages up to 600 V.
The CA4-31U is designed for front mounting, making installation straightforward.
The unit can withstand short-time currents up to 140 A for 0.1 seconds.
This auxiliary contact is compatible with AF09 to AF16 series contactors.
The terminal protection meets IP20 requirements, safeguarding against accidental contact or ingress of foreign objects.
It complies with UL 508 and CSA C22.2 N14 standards, ensuring industrial safety and reliability.
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