ABB Auxiliary Contact Block - Cal4-11
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Tameson UKAbb A Series Auxiliary Contact Block - 1Sbn010120r1011
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Product Information
Full details
This ABB Auxiliary Contact Block (CAL4-11) is designed for control and auxiliary circuits in standard industrial environments. It offers reliable operation with one normally open (NO) and one normally closed (NC) contact. While it provides essential functionality for monitoring and control, it is important to note that this model is for standard industrial use and may not be suitable for highly specialized or extreme environments.
All features
| Series | Cal |
|---|---|
| Model Part Number | 1SBN010120R1011 |
| Brand | ABB |
Extended Product Information
FAQs
What is the main function of an auxiliary contact block?
An auxiliary contact block is used in control circuits to provide additional contacts that mirror the state of the main contactor. These contacts can be used for interlocking, signaling, or monitoring purposes.
What does '1 NO / 1 NC' mean?
It means the contact block has one 'Normally Open' contact, which is closed when the main contactor is energized, and one 'Normally Closed' contact, which is open when the main contactor is energized.
Can I mount this block on any contactor?
No, this block is designed for specific ABB contactor series (A, AL, TAL, UA). Refer to the compatibility list in the 'Setup, Compatibility & Care' section.
What is the maximum current rating for the contacts?
The rated operation current (Ie) at AC-15, 230 V is 4A.
How do I connect wires to the terminals?
The CAL4-11 uses screw terminals. Strip the wire end, insert it into the appropriate terminal, and tighten the screw firmly for a secure connection.
Is this suitable for high-power switching?
No, this auxiliary contact block is designed for low-power control and signaling circuits, not for directly switching main power loads.
What are the physical dimensions of the CAL4-11?
The dimensions are: Width 43 mm, Depth 39 mm, Height 47 mm.
Troubleshooting
Auxiliary contact not switching states
Verify that the main contactor is operating correctly and that the auxiliary contact block is securely mounted. Check wiring connections to the terminals and ensure they are tight. Confirm the correct NO/NC configuration is being used in the circuit design.
Unit feels loose on contactor
Remove the auxiliary contact block and re-mount it, ensuring it clicks securely into place. Inspect the mounting mechanism on both the block and the contactor for any damage or obstructions.
Overheating at terminals
Ensure the wires are properly stripped and securely fastened in the screw terminals. Check that the wire gauge is appropriate for the current being carried. Overloading the circuit can also cause overheating; verify circuit design and load.
Pros and Cons
Pros
- Provides essential NO/NC contact configuration for control logic.
- Easy front mounting reduces installation time.
- Secure screw connections ensure reliable electrical pathways.
- Compact size allows for efficient use of space in control panels.
- Suitable for general industrial applications.
Cons
- Limited to standard industrial environments; not for hazardous areas.
- Only one NO and one NC contact available; may require additional blocks for complex circuits.
- Top mounting model (CAL4-11) might be less preferred than side mounting for some panel designs.
- Does not include LED indicators or surge suppression.
Setup, Compatibility & Care
Setup:
The CAL4-11 is designed for front mounting onto compatible ABB contactors. Ensure the power is disconnected before installation.
- Align the auxiliary contact block with the front of the main contactor.
- Push the block firmly until it clicks into place.
- Connect the wires for your auxiliary circuit to the screw terminals, observing correct polarity for NO and NC contacts.
Compatibility:
This auxiliary contact block is compatible with the following ABB contactor series:
- A9, A12, A16, A26, A30, A40
- AL9, AL9Z, AL12, AL12Z, AL16, AL16Z, AL26, AL30, AL40
- TAL9, TAL12, TAL16, TAL26, TAL30, TAL40
- UA16, UA26, UA30
Care:
- Keep the auxiliary contact block clean and free from dust and debris. Use a dry or slightly damp cloth for cleaning; avoid solvents.
- Periodically check the tightness of the screw terminals to ensure a secure connection.
- Inspect for any signs of wear or damage. If damage is found, replace the unit.