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RS Components Ltd- UK£8.85Visit shop Siemens SIRIUS ACT Contact Block - NC 5 → 500 V ac/dc
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This Siemens SIRIUS ACT NC Contact Module is designed for industrial power circuit switching and control applications. It offers reliable single-contact normally closed (NC) functionality with a wide voltage range and robust current handling. A key benefit is its tool-free, snap-on installation and integrated twist prevention, simplifying setup in demanding environments. However, users should note its specific screw terminal connection, which requires appropriate wiring practices.
| Brand | Siemens |
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'NC' stands for Normally Closed. This means the contact is closed (allowing current to flow) when the module is not activated or when the connected actuator is in its default state. It opens when activated.
The module operates up to 500V AC/DC, which covers many industrial voltages. However, always ensure your application's voltage is within this specified range and that installation complies with all relevant safety standards.
Strip the end of the wire to the appropriate length according to the terminal size. Insert the wire into the terminal opening and tighten the screw firmly to secure the connection. Ensure no stray wire strands are present.
This module is designed for industrial environments. Specific environmental ratings (like IP ratings) depend on the complete actuator assembly and enclosure. Consult the SIRIUS ACT series documentation for detailed environmental specifications.
The lifespan of electrical contacts is measured in switching cycles and depends heavily on the load (current and voltage) and the operating environment. Siemens products are built for industrial durability, but specific cycle ratings are best found in the detailed technical data sheet for the product.
Yes, if your control logic requires a normally closed contact instead of a normally open one, you can replace an NO module with this NC module, provided the wiring and physical fit are compatible with your actuator.
Verify that the actuator is correctly engaged with the module. Check wiring connections at the screw terminals for tightness and correctness. Ensure the operating voltage is within the specified 5-500V AC/DC range and is present.
Ensure the mounting opening on the front plate is clean and free from obstructions. Check that you are using a compatible SIRIUS ACT actuator base. Verify the twist prevention feature is not obstructed.
Confirm that the module's wiring is correctly integrated into the communication network. Check the diagnostic logs of your controller for specific error codes related to the module's address. Ensure the module is functioning electrically as described above.
Immediately disconnect power. The module may be overloaded (exceeding 10A) or incorrectly wired. Inspect for signs of melting or burning. Replace the module if any damage is evident.
Setup:
Compatibility:
This module is part of the Siemens SIRIUS ACT series and is designed for integration with its corresponding actuators and command devices. It is compatible with industrial automation systems utilizing PROFINET, AS-Interface, and IO-Link communication protocols. Ensure your control system can interface with a standard 1NC contact and the operating voltage.
Care:
This is a static component with no moving parts in its primary switching function. Periodic visual inspection for dirt or damage is recommended. To clean, disconnect power and wipe gently with a dry or slightly damp cloth. Avoid using solvents or abrasive cleaners.
