Standard delivery
£8 ex VAT · free over £200UK parcel delivery is £8 ex VAT, or free on orders over £200 ex VAT.
Heavier items may be charged at a weight-based or pallet rate, shown at checkout.
1SBN010040R1240 ABB CA5-40N Auxiliary Contact Block 4NO Front Mount
ABB 1SBN010040R1240 CA5-40N four-pole auxiliary contact block with four normally open contacts designed for ABB contactor control and signalling applications.
£39.78
Why Choose the ABB 1SBN010040R1240 CA5-40N Auxiliary Contact Block?
The ABB 1SBN010040R1240 is a reliable four-pole auxiliary contact block designed for expanding the control and signalling capabilities of ABB contactors and contactor relays. As part of the ABB CA5 auxiliary contact block series, it provides additional normally open contacts for industrial automation systems, electrical control panels and motor control applications.
This front-mounted accessory is designed for use with ABB N, NL and TNL series contactors and contactor relays. The CA5-40N features screw terminal connections and provides four instantaneous normally open auxiliary contacts, allowing engineers to expand monitoring, interlocking and control functions within industrial electrical systems.
With a rated operational voltage of up to 690 V AC for the auxiliary circuit and an AC-15 operational current rating of 4 A at 230 V AC, the ABB 1SBN010040R1240 is suitable for reliable auxiliary switching in automation equipment, machinery and industrial control installations.
Key Advantages
- Compact auxiliary contact block designed for ABB contactor systems.
- Four normally open auxiliary contacts for expanded control functionality.
- Front-mounted design for simple installation on compatible ABB contactors.
- Screw terminal connection technology for secure industrial wiring.
- Improves signalling, interlocking and monitoring capabilities.
- Compatible with ABB N, NL and TNL series contactors and contactor relays.
Key Features
- ABB CA5-40N auxiliary contact block series.
- 4 normally open auxiliary contacts.
- 4-pole auxiliary contact configuration.
- Front mounting arrangement.
- Screw terminal connection.
- Rated operational voltage up to 690 V AC.
- Suitable for industrial control and auxiliary switching applications.
- Designed for use with ABB low voltage contactors.
Reliable Control Expansion for Industrial Automation
Auxiliary contact blocks such as the ABB CA5-40N provide additional electrical contacts that allow control systems to monitor contactor status, create electrical interlocks and provide feedback signals to automation equipment. They are essential accessories for expanding the functionality of industrial switching devices.
The ABB auxiliary contact block range combines compact construction, reliable switching performance and simple installation, helping engineers create flexible and maintainable control solutions for industrial machinery and automation systems.
Typical Applications
- Industrial control panels.
- Motor starter circuits.
- PLC feedback and signalling systems.
- Machine automation equipment.
- Electrical interlocking applications.
- OEM machinery control assemblies.
Technical Specifications
Tick the specs you need, then view products that match.
| Terminal Type | Screw | |
|---|---|---|
| Poles | 4-pole | |
| Device Type | Auxiliary contact block | |
| Auxiliary Contacts | 4NO | |
| Manufacturer | ABB | |
| Series | CA5 Auxiliary Contact Blocks | |
| Model | 1SBN010040R1240 | |
| Alternative designation | CA5-40N | |
| Product type | Auxiliary contact block | |
| Number of poles | 4 | |
| Auxiliary contacts | 4 NO | |
| Mounting type | Front mounting | |
| Terminal type | Screw terminals | |
| Rated operational voltage | Up to 690 V AC | |
| Rated operational current AC-15 | 4 A at 230 V AC | |
| Rated frequency | 50 / 60 Hz | |
| Protection rating | IP20 | |
| Dimensions (H × W × D) | approx. 47 × 43 × 39 mm | |
| Weight | approx. 0.06 kg |
Frequently Asked Questions
What is the ABB 1SBN010040R1240 used for?
The ABB 1SBN010040R1240 is an auxiliary contact block used to add additional control and signalling contacts to compatible ABB contactors and contactor relays.
How many contacts does the ABB 1SBN010040R1240 have?
The CA5-40N auxiliary contact block provides four normally open auxiliary contacts.
Where is this auxiliary contact block installed?
The contact block is installed on the front of compatible ABB N, NL and TNL series contactors and contactor relays.
What type of connection does this accessory use?
The ABB 1SBN010040R1240 uses screw terminal connections for reliable industrial wiring.
What applications is this accessory suitable for?
The auxiliary contact block is suitable for industrial automation, motor control panels, signalling circuits and electrical interlocking applications.
Trusted by Industrial Automation Engineers
ABB auxiliary contact blocks are widely used in industrial control systems to expand contactor functionality, improve monitoring capability and provide reliable control circuit integration.
