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1SBN010042R1240 ABB CA5-40NRT Front Mounted Auxiliary Contact Block 4 NO
ABB CA5-40NRT is a 4-pole front mounted auxiliary contact block with four normally open instantaneous contacts and screw terminals for industrial control and signalling circuits.
£21.26
Why Choose the ABB CA5-40NRT Front Mounted Auxiliary Contact Block?
The ABB CA5-40NRT is a 4-pole front mounted auxiliary contact block designed to extend the control and signalling capabilities of compatible ABB contactors and contactor relays. Identified by ABB order code 1SBN010042R1240, this instantaneous auxiliary block provides four normally open contacts for reliable operation of auxiliary and control circuits in standard industrial environments.
The CA5-40NRT features a 4 NO + 0 NC contact configuration and is equipped with screw terminals intended for connection using ring tongue ferrules. Its CA5-..N terminal arrangement matches the marking used with compatible 4-pole TNL..ERT contactors, helping simplify wiring, identification and maintenance within industrial control panels.
With an auxiliary-circuit rated operational voltage of up to 690 V and an AC-15 operational current of 4 A at 220–240 V, the CA5-40NRT provides dependable auxiliary switching for interlocking, signalling, status indication and control functions. Its compact front-mounted format integrates directly with compatible ABB switching equipment without requiring a separate mounting location.
Key Advantages
- Front mounted auxiliary contact block for compatible ABB contactors and contactor relays.
- Four normally open instantaneous contacts for auxiliary control and signalling.
- 4-pole configuration in a compact single accessory.
- Auxiliary-circuit operational voltage rated up to 690 V.
- Screw terminals designed for connection with ring tongue ferrules.
- CA5-..N terminal arrangement supports consistent marking with compatible 4-pole TNL..ERT contactors.
- Suitable for interlocking, signalling and industrial control circuits.
Key Features
- ABB CA5 auxiliary contact block.
- 4 NO + 0 NC instantaneous auxiliary contacts.
- 4-pole contact arrangement.
- Front mounting for straightforward contactor integration.
- 690 V rated operational voltage for the auxiliary circuit.
- AC-15 rated operational current of 6 A at 24–127 V.
- AC-15 rated operational current of 4 A at 220–240 V.
- AC-15 rated operational current of 3 A at 380–400 V.
- AC-15 rated operational current of 2 A at 500–690 V.
- 50 / 60 Hz auxiliary-circuit rated frequency.
- Screw terminal connection for ring tongue ferrules.
Reliable Auxiliary Control and Signalling
Auxiliary contact blocks expand the available control contacts of a contactor or contactor relay without adding a separate switching device. The ABB CA5-40NRT provides four normally open instantaneous contacts that can be incorporated into control logic for electrical interlocking, equipment status indication, signalling and sequencing functions.
Its front-mounted construction provides a compact solution for industrial control assemblies, while the dedicated screw terminals support secure conductor termination with ring tongue ferrules. The CA5-40NRT is designed for standard industrial environments where dependable auxiliary switching and clear terminal identification are required.
Typical Applications
- Contactor auxiliary control circuits.
- Electrical interlocking systems.
- Motor control panels and motor starters.
- Industrial machinery control circuits.
- Contactor status and position signalling.
- Automation and sequencing circuits.
- Industrial switchboards and control cabinets.
Technical Specifications
| Series | CA5 |
|---|---|
| ABB order code | 1SBN010042R1240 |
| Product type | Front mounted auxiliary contact block |
| Number of poles | 4 |
| Normally open contacts | 4 |
| Contact operation | Instantaneous |
| Mounting type | Front mounting |
| Terminal type | Screw terminals for ring tongue ferrules |
| Rated operational voltage | 690 V auxiliary circuit |
| Rated frequency | 50 / 60 Hz |
| AC-15 operational current at 24–127 V | 6 A |
| AC-15 operational current at 220–240 V | 4 A |
| AC-15 operational current at 380–400 V | 3 A |
| AC-15 operational current at 500 V | 2 A |
| AC-15 operational current at 690 V | 2 A |
| Dimensions (H × W × D) | 47 × 43 × 39 mm |
| Net weight | 0.06 kg |
| EAN | 3471522364630 |
Frequently Asked Questions
What is the ABB CA5-40NRT used for?
The ABB CA5-40NRT is a front mounted auxiliary contact block used to add additional contacts to compatible ABB contactors and contactor relays for control, signalling and interlocking circuits.
How many contacts does the CA5-40NRT provide?
The CA5-40NRT provides four normally open and zero normally closed instantaneous contacts, giving it a 4 NO + 0 NC configuration.
What is the rated operational voltage of the CA5-40NRT?
The auxiliary circuit has a rated operational voltage of up to 690 V.
How is the ABB CA5-40NRT mounted?
The CA5-40NRT is a front mounted auxiliary contact block designed to attach directly to compatible ABB switching equipment.
What terminals does the CA5-40NRT use?
The auxiliary contact block uses screw terminals designed for connection with ring tongue ferrules, providing secure wiring for industrial control applications.
Trusted ABB Control Components
ABB CA5 auxiliary contact blocks provide a practical way to expand contactor control and signalling functionality, with robust front mounting, clearly defined auxiliary contacts and secure terminal connections for industrial control systems.
