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ABB ca4-31u front mounted 3no 1nc instantaneous aux contact block
ABB CA4-31E front-mounted auxiliary contact block with 3 NO and 1 NC instantaneous contacts, screw terminals and compatibility with ABB AF and AFC contactors.
£15.14
Why Choose the ABB CA4-31U Auxiliary Contact Block?
The ABB CA4-31U (1SBN010140R1331) is a high quality front-mounted auxiliary contact block designed to increase the functionality of ABB AF series contactors. Engineered for industrial motor control and automation systems, it provides additional auxiliary contacts for signalling, monitoring, interlocking and PLC control circuits while maintaining a compact control panel layout.
Manufactured to ABB's exacting engineering standards, the CA4-31U delivers dependable switching performance in demanding industrial environments. Its front-mounted design allows rapid installation, while screw terminal connections provide secure and reliable wiring for OEM machinery, electrical control panels and industrial automation systems.
Featuring a 3 NO + 1 NC instantaneous contact configuration, the CA4-31U is ideal for expanding control circuits, status indication and safety interlocking applications. The CA4-..U version is specifically designed to match the terminal marking arrangement of compatible ABB AF09 to AF16 three-pole contactors.
Key Advantages
- Front-mounted auxiliary contact block for ABB AF series contactors.
- 3 normally open (NO) and 1 normally closed (NC) instantaneous contacts.
- Compact design maximises valuable control panel space.
- Screw terminal connections provide secure industrial wiring.
- Quick front mounting installation.
- Ideal for signalling, monitoring and industrial automation circuits.
Key Features
- ABB CA4-31U Auxiliary Contact Block.
- Manufacturer part number: 1SBN010140R1331.
- Front-mounted accessory.
- 3 NO + 1 NC instantaneous contacts.
- Screw terminal connections.
- Compatible with ABB AF09 to AF16 contactors.
- Rated operational voltage up to 690 V AC.
- Manufactured in accordance with IEC/EN 60947-5-1.
Reliable Auxiliary Contacts for Industrial Control Systems
Auxiliary contact blocks provide additional switching contacts for signalling, monitoring and automation within industrial electrical systems. The ABB CA4-31U integrates directly with compatible AF series contactors, allowing engineers to expand control functionality without increasing panel space.
Its robust construction and ABB engineering make it an excellent choice for OEM machinery, motor control centres, manufacturing equipment and industrial automation systems where dependable auxiliary switching performance is essential.
Typical Applications
- Industrial motor control panels.
- Machine building and OEM equipment.
- PLC monitoring and interface circuits.
- Electrical control cabinets.
- Industrial automation systems.
- Status indication and safety interlocking circuits.
Technical Specifications
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| Terminal Type | Screw | |
|---|---|---|
| Current | 6 A | |
| Phase | Three Phase | |
| IP Rating | IP20 | |
| Poles | 4-pole | |
| Device Type | Auxiliary contact block | |
| Series | CA4 | |
| Part number | 1SBN010140R1331 | |
| Product type | Auxiliary contact block | |
| Contact configuration | 3 NO + 1 NC | |
| Number of poles | 4P | |
| Mounting type | Front mounted | |
| Terminal type | Screw terminals | |
| Rated operational current | 6 A | |
| Rated operational voltage | 24 to 690 V AC / up to 600 V DC | |
| Rated insulation voltage | 690 V | |
| Impulse withstand voltage | 6 kV | |
| Conventional free-air thermal current | 16 A | |
| Electrical switching frequency | 1200 cycles/hour AC-15, 900 cycles/hour DC-13 | |
| Mechanical switching frequency | 3600 cycles/hour | |
| Mechanical durability | approx. 10 million operations | |
| Compatible contactors | ABB AF09...AF96 and AFC09...AFC38 series | |
| Operating temperature | approx. -40 °C to +70 °C | |
| Protection rating | IP20 | |
| Standards | IEC/EN 60947-5-1, UL 60947-5-1, CSA C22.2 | |
| Dimensions (W × H × D) | approx. 46 × 46 × 46 mm | |
| Weight | approx. 0.055 kg |
Frequently Asked Questions
What is the ABB CA4-31U used for?
The CA4-31U provides additional auxiliary contacts for signalling, monitoring and control circuits when installed on compatible ABB AF series contactors.
What contact configuration does the CA4-31U provide?
It provides 3 normally open (NO) and 1 normally closed (NC) instantaneous auxiliary contacts.
Which ABB contactors is it compatible with?
The CA4-31U is designed for compatible ABB AF09 to AF16 contactors.
How is the CA4-31U installed?
It mounts directly onto the front of the compatible contactor for quick and straightforward installation.
What type of terminals does it use?
The auxiliary contact block uses screw terminal connections for secure and reliable industrial wiring.
Trusted by Industrial Control Professionals
ABB auxiliary contact blocks are trusted worldwide by electrical engineers, OEM manufacturers and panel builders for dependable switching performance, straightforward installation and long service life in industrial motor control applications.
