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- ABB
- CA5-01 1SBN010010R1001
- Auxiliary Contact Block
- Sweden (SE)
- 47 × 11 × 32.5 mm
- 0.014 kg
- Xiamen, China
- New & In Stock
- T/T, PayPal, Western Union
- 1 Year
- 1-3 Working Days
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- 24-Hour Service
- COO
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Product Overview
The ABB CA5-01 1SBN010010R1001 Auxiliary Contact Block is an auxiliary contact accessory for compatible ABB contactors and switching devices. It adds an auxiliary switching contact that can be used for contactor status feedback, electrical interlocking, control sequencing, and indication circuits.
The CA5-01 configuration uses a normally closed auxiliary contact. Its contact state changes with the mechanical operation of the associated contactor, allowing the control circuit to detect changes in contactor status without switching the main load current through the auxiliary device.
This accessory is useful in motor starters, machine control panels, industrial automation systems, pump controls, HVAC equipment, and other contactor-based control circuits.
Technical Specifications
| Parameter | Details |
|---|---|
| Model | CA5-01 |
| Ordering Code | 1SBN010010R1001 |
| Brand | ABB |
| Product Type | Auxiliary Contact Block |
| Contact Configuration | 1 Normally Closed Auxiliary Contact |
| Function | Auxiliary Signaling and Control |
| Application | Contactor and Motor Control Circuits |
| Dimensions | 47 × 11 × 32.5 mm |
| Weight | 0.014 kg |
Product Features
- Auxiliary Contact Expansion: Adds an auxiliary contact to a compatible ABB contactor.
- Normally Closed Contact: Provides a normally closed switching path for control and status circuits.
- Contactor Status Feedback: Allows the operating condition of the main contactor to be monitored.
- Electrical Interlocking: Can be incorporated into interlock circuits between contactors.
- Control Sequencing: Supports auxiliary logic within machine and motor control systems.
- Mechanical Actuation: The auxiliary contact follows the operating movement of the associated contactor.
- Compact Construction: Fits within the contactor accessory arrangement without requiring a separate control relay.
- Industrial Control Integration: Suitable for motor starters, control panels, and automation equipment.
Working Principle
The CA5-01 auxiliary contact block follows the mechanical state of the associated contactor.
In its normal condition, the normally closed auxiliary contact remains closed, allowing current to pass through the auxiliary control circuit. When the contactor operates, the mechanical actuator changes the auxiliary contact position and opens the normally closed circuit.
This change can be used by a PLC input, relay circuit, indicator, or interlocking circuit to determine the operating state of the contactor.
The auxiliary contact is intended for control and signaling rather than for carrying the main motor or equipment load.
Contactor State → Mechanical Actuation → CA5-01 Auxiliary Contact → Control / Feedback Circuit
Role in an ABB Contactor Control Architecture
| System Element | Function |
|---|---|
| ABB Contactor | Switches the main electrical load |
| CA5-01 Auxiliary Contact Block | Provides normally closed auxiliary feedback or control |
| Contactor Coil | Operates the main contactor |
| Motor Protection Device | Provides motor protection |
| Circuit Breaker / Fuse | Provides upstream circuit protection |
| PLC Output | Sends the contactor control command |
| PLC Input | Receives auxiliary contact feedback |
| Control Relay | Provides additional control and interlocking logic |
| Indicator Lamp | Displays equipment status |
| Emergency Stop Circuit | Interrupts control operation when required |
| Motor | Receives power through the main contactor |
| Control Power Supply | Supplies the contactor and control circuits |
Industrial Applications
| Application | Typical Use |
|---|---|
| Motor Starters | Provides normally closed contactor feedback |
| Industrial Control Panels | Adds auxiliary control and signaling |
| Machine Automation | Supports interlocking and sequence control |
| Conveyor Systems | Monitors contactor operating status |
| Pump Control | Provides contactor feedback and interlock functions |
| HVAC Systems | Supports fan and compressor contactor circuits |
| Material Handling | Provides auxiliary switching for motor control |
| Production Machinery | Supports machine control sequences |
| Electrical Control Systems | Provides switching-device status information |
| Automated Equipment | Interfaces contactor status with PLC control systems |
Installation and Maintenance
- Verify Compatibility: Confirm that CA5-01 is compatible with the intended ABB contactor before installation.
- Isolate the Circuit: Disconnect relevant power and control circuits before servicing the accessory.
- Inspect the Housing: Check the auxiliary contact block for cracks, deformation, or other visible damage.
- Check Mounting Position: Ensure the accessory is installed in the correct location on the compatible contactor.
- Confirm Mechanical Engagement: Verify that the contact block is properly engaged with the contactor mechanism.
- Check Wiring: Connect control wires to the correct normally closed auxiliary contact terminals.
- Inspect Terminals: Make sure terminal connections are secure and free from corrosion.
- Test Contact Operation: Operate the associated contactor and verify that the auxiliary contact opens and closes as expected.
- Check PLC Feedback: If connected to a PLC input, verify that the feedback signal changes correctly.
- Monitor Contact Condition: Investigate intermittent signals or abnormal contact resistance.
- Maintain Panel Cleanliness: Prevent dust, moisture, and conductive contamination from accumulating around the contactor assembly.
- Document Replacement: Record accessory replacement and functional test results during maintenance.
Related Components
| Component | Function |
|---|---|
| ABB Contactor | Main switching device |
| ABB Motor Protection Circuit Breaker | Provides motor protection |
| ABB Overload Relay | Provides overload protection |
| ABB Contactor Coil | Operates the contactor |
| Auxiliary Contact Block | Provides additional control contacts |
| Control Relay | Extends control and interlocking functions |
| PLC Digital Input | Receives contactor status feedback |
| PLC Digital Output | Provides contactor control |
| Indicator Lamp | Displays contactor or equipment status |
| Control Power Supply | Supplies the control circuit |
| Terminal Block | Provides control wiring connections |
| Motor | Controlled electrical load |
Recommended Related Models
| Model | Product Type / Application |
|---|---|
| ABB CA5-10 1SBN010010R1010 | Auxiliary Contact Block |
| ABB CA5-01 1SBN010010R1001 | Auxiliary Contact Block |
| ABB CA5-22 | Auxiliary Contact Block |
| ABB CA5-31 | Auxiliary Contact Block |
| ABB CA5-40 | Auxiliary Contact Block |
| ABB AF Series Contactors | Industrial Contactor |
| ABB A Series Contactors | Industrial Contactor |
| ABB TA Series Overload Relays | Motor Overload Protection |
Key Advantages
- Adds auxiliary switching capability to compatible ABB contactors.
- Provides a normally closed contact for control and feedback circuits.
- Supports electrical interlocking applications.
- Allows contactor status to be monitored by control systems.
- Fits compact contactor-based control assemblies.
- Supports PLC, relay, and indication circuits.
Technical FAQs
What is the function of the ABB CA5-01 auxiliary contact block?
It adds a normally closed auxiliary contact to a compatible ABB contactor for control, signaling, status feedback, or electrical interlocking applications.
What happens to the CA5-01 contact when the contactor operates?
The normally closed auxiliary contact changes state when the associated contactor operates, opening the auxiliary circuit and allowing the control system to detect the contactor’s operating condition.
Can the CA5-01 be connected to a PLC input?
Yes. When the electrical ratings and control circuit requirements are suitable, the auxiliary contact can be connected to a PLC digital input to provide contactor status feedback.
What should be checked if the normally closed contact remains in the wrong state?
Check the accessory mounting, mechanical engagement with the contactor, terminal wiring, contact mechanism, and the operating condition of the associated contactor. If the mechanical movement is normal but the contact state does not change, the auxiliary contact should be inspected for damage or wear.