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ABB ca4-40n front mounted 4no instantaneous aux contact block
ABB CA4-40N front-mounted auxiliary contact block with 4 NO instantaneous contacts, screw terminals and compatibility with ABB NF contactor relays.
£15.14
Why Choose the ABB CA4-40N Auxiliary Contact Block?
The ABB CA4-40N (1SBN010140R1240) is a high quality front-mounted auxiliary contact block designed to expand the functionality of ABB NF and NFZ four-pole contactors. Engineered for industrial automation and motor control systems, it provides additional auxiliary contacts for signalling, monitoring and control applications while maintaining a compact control panel layout.
Manufactured to ABB's renowned engineering standards, the CA4-40N features secure screw terminal connections and a simple front-mounted design for fast installation. It offers dependable switching performance in demanding industrial environments and is ideal for OEM machinery, electrical control panels and automation equipment.
Featuring a 4 NO instantaneous contact configuration, the CA4-40N provides maximum flexibility for expanding control circuits, PLC interfaces and indication systems. The CA4-..N version is specifically designed to match the terminal markings of ABB NF(C)(Z)(B) four-pole contactors for straightforward installation and wiring.
Key Advantages
- Front-mounted auxiliary contact block for ABB NF and NFZ contactors.
- 4 normally open (NO) instantaneous auxiliary contacts.
- Compact design maximises valuable panel space.
- Screw terminal connections provide secure industrial wiring.
- Simple front mounting for quick installation.
- Ideal for signalling, monitoring and industrial automation circuits.
Key Features
- ABB CA4-40N Auxiliary Contact Block.
- Manufacturer part number: 1SBN010140R1240.
- Front-mounted accessory.
- 4 NO instantaneous contacts.
- Screw terminal connections.
- Compatible with ABB NF(C)(Z)(B) four-pole 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 CA4-40N integrates directly with compatible NF and NFZ contactors, allowing engineers to expand control functionality without increasing control panel size.
Its robust construction and ABB engineering make it ideal 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 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 | 1SBN010140R1240 | |
| Product type | Auxiliary contact block | |
| Contact configuration | 4 NO | |
| 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 CA4-40N used for?
The CA4-40N provides four normally open auxiliary contacts for signalling, monitoring and control circuits when installed on compatible ABB NF and NFZ contactors.
What contact configuration does the CA4-40N provide?
It provides 4 normally open (NO) instantaneous auxiliary contacts.
Which ABB contactors is it compatible with?
The CA4-40N is designed for ABB NF(C)(Z)(B) four-pole contactors.
How is the CA4-40N installed?
It mounts directly onto the front of the compatible contactor, providing quick installation and secure operation.
What type of terminals does it use?
The auxiliary contact block uses screw terminal connections for 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.
