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1SBN010146R1204 ABB CA4-04NK Auxiliary Contact Block 4NC Front Mount
ABB CA4-04NK four-pole auxiliary contact block with 4NC contacts designed to expand industrial contactor control and signalling circuits.
£14.71
Why Choose the ABB CA4-04NK Auxiliary Contact Block?
The ABB CA4-04NK is a compact and reliable four-pole auxiliary contact block designed to expand the control and signalling capabilities of ABB contactors and contactor relays. As part of the ABB CA4 auxiliary contact block range, it provides additional normally closed contacts for industrial automation, electrical control and switching applications.
This auxiliary contact block is designed for front mounting on compatible ABB contactors and provides instantaneous auxiliary contacts for use in control circuits. Its push-in spring terminal connection system enables efficient wiring while maintaining secure and reliable connections in industrial environments.
With a 4 NC contact configuration, a 690 V rated insulation voltage and a 16 A conventional free-air thermal current rating, the ABB CA4-04NK is suitable for electrical interlocking, status feedback and control circuit expansion within industrial switching systems.
Key Advantages
- Compact auxiliary contact block designed for ABB contactor systems.
- Four normally closed auxiliary contacts for flexible control circuit applications.
- Front mounting design for straightforward installation on compatible ABB contactors.
- Push-in spring terminal connections for fast and reliable wiring.
- 690 V rated insulation voltage for industrial control applications.
- Suitable for standard industrial environments and automation systems.
Key Features
- ABB CA4 auxiliary contact series.
- CA4-04NK model.
- 4 NC instantaneous auxiliary contacts.
- Front-mounted contact block design.
- Push-in spring terminal connection system.
- 690 V rated insulation voltage.
- Compatible with ABB contactors and contactor relays.
- Suitable for signalling, interlocking and control circuits.
Reliable Control Expansion for Industrial Systems
Auxiliary contact blocks such as the ABB CA4-04NK extend the functionality of contactors by providing additional contacts for electrical signalling, safety interlocking and control logic. They are essential components in modern industrial automation and motor control systems.
The ABB CA4 range provides dependable switching performance and simplified installation, allowing engineers to create flexible control solutions while maintaining reliable operation in electrical panels and machinery.
Typical Applications
- Industrial motor control panels.
- Contactor status and feedback circuits.
- PLC input and automation signalling systems.
- Electrical interlocking applications.
- Production machinery control systems.
- OEM automation equipment.
Technical Specifications
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| Terminal Type | Push-in | |
|---|---|---|
| Device Type | Auxiliary contact block | |
| Auxiliary Contacts | None | |
| Manufacturer | ABB | |
| Series | CA4 Auxiliary Contact Blocks | |
| Model | CA4-04NK | |
| Product ID | 1SBN010146R1204 | |
| Product type | Auxiliary contact block | |
| Contact configuration | 4 NC | |
| Number of auxiliary contacts NC | 4 | |
| Rated operational voltage | 24–690 V AC | |
| Rated insulation voltage | 690 V | |
| Conventional free-air thermal current | 16 A | |
| Rated operational current AC-15 | up to 6 A | |
| Mounting type | Front mounting | |
| Terminal type | Push-in spring terminals | |
| Protection rating | IP20 auxiliary terminals | |
| Weight | approx. 0.05 kg |
Frequently Asked Questions
What is the ABB CA4-04NK used for?
This auxiliary contact block is used to add additional signalling and control contacts to compatible ABB contactors and switching devices.
What contact configuration does the CA4-04NK provide?
The ABB CA4-04NK provides four normally closed auxiliary contacts.
How is this auxiliary contact block mounted?
The CA4-04NK is designed for front mounting on compatible ABB contactors and contactor relays.
What voltage rating does this auxiliary contact support?
The auxiliary contact block has a 690 V rated insulation voltage for industrial control applications.
Where is this product typically installed?
The ABB CA4-04NK is typically installed inside electrical control panels, motor starters and industrial automation systems.
Trusted by Automation Engineers Worldwide
ABB auxiliary contact blocks are widely used by electrical engineers and machine builders to provide reliable control expansion, feedback signalling and flexible integration within industrial switching systems.
