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ABB ca4-31n front mounted 3no 1nc instantaneous aux contact block
ABB CA4-31N front-mounted auxiliary contact block with 3 NO and 1 NC instantaneous contacts, screw terminals and compatibility with ABB NF contactor relays.
£15.14
Why Choose the ABB CA4-31N Auxiliary Contact Block?
The ABB CA4-31N (1SBN010140R1231) is a premium front-mounted auxiliary contact block designed to increase the functionality of ABB NF and NFZ four-pole contactors. It provides additional auxiliary contacts for industrial motor control, automation, signalling and interlocking applications while maintaining a compact control panel layout.
Engineered to ABB's high quality standards, the CA4-31N delivers reliable switching performance in demanding industrial environments. Its front-mounted design enables fast installation, while screw terminal connections provide secure and dependable wiring for control circuits and automation systems.
With a 3 NO + 1 NC instantaneous contact configuration, the CA4-31N is ideally suited for machine builders, panel manufacturers and maintenance engineers requiring additional control contacts for PLC interfaces, status indication, safety interlocking and process automation.
Key Advantages
- Front-mounted auxiliary contact block for ABB NF and NFZ contactors.
- 3 normally open (NO) and 1 normally closed (NC) instantaneous contacts.
- Compact design maximises available control panel space.
- Screw terminal connections ensure secure industrial wiring.
- Simple front mounting for fast installation.
- Ideal for signalling, monitoring and industrial automation circuits.
Key Features
- ABB CA4-31N Auxiliary Contact Block.
- Manufacturer part number: 1SBN010140R1231.
- Front-mounted accessory.
- 3 NO + 1 NC instantaneous contacts.
- Screw terminal connections.
- Compatible with ABB NF(C)(Z)(B) four-pole contactors.
- 690 V AC rated operational voltage.
- Manufactured in accordance with IEC/EN 60947-5-1.
Reliable Auxiliary Contacts for Industrial Automation
Auxiliary contact blocks provide additional switching contacts for monitoring, signalling and interlocking within industrial electrical systems. The ABB CA4-31N integrates directly with compatible NF and NFZ contactors, allowing engineers to expand control functionality without increasing panel space.
Its durable construction and ABB engineering make it an excellent choice for OEM machinery, manufacturing equipment, motor control centres and industrial automation systems where dependable auxiliary switching is essential.
Typical Applications
- Industrial motor control panels.
- Machine building and OEM equipment.
- PLC monitoring and interface circuits.
- Electrical control cabinets.
- Industrial automation systems.
- Safety interlocking and signalling 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 | 1SBN010140R1231 | |
| 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 NF22E, NF31E, NF40E, NFC22E, NFC31E, NFC40E and related NFZ/NFB series relays | |
| 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. 43 × 43 × 39.5 mm | |
| Weight | approx. 0.055 kg |
Frequently Asked Questions
What is the ABB CA4-31N used for?
The CA4-31N provides additional auxiliary contacts for signalling, monitoring and control circuits when installed on compatible ABB NF and NFZ four-pole contactors.
What contact configuration does the CA4-31N provide?
It provides 3 normally open (NO) and 1 normally closed (NC) instantaneous auxiliary contacts.
Which contactors is the CA4-31N compatible with?
The CA4-31N is designed for ABB NF(C)(Z)(B) four-pole contactors.
How is the CA4-31N installed?
It mounts directly onto the front of the compatible contactor, providing quick installation without increasing panel size.
What type of terminals does it use?
The auxiliary contact block features 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 control applications.
