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This Siemens Auxiliary Contact (MPN 5ST3062-0MC) is designed for users in industrial automation and control systems needing to monitor the status of modular devices, particularly circuit breakers. Its key benefit is providing reliable status feedback with a compact, 1-modular-spacing footprint. A notable point is its specific operation at 24 V DC and 20 mA, making it suitable for low-power control circuits, and it lacks an auto-test function for earth leakage.
| Series | 5ST3 |
|---|---|
| Model Part Number | 5ST30620MC |
| Brand | Siemens |
Its primary function is to monitor and report the operational status (e.g., tripped, closed, or open) of a connected device, such as a circuit breaker, to a control system.
It operates with a rated voltage of 24 V DC and has a contact current rating of 20 mA.
No, with a 20 mA rating, it is designed for signaling and monitoring purposes in low-power control circuits, not for switching high currents.
No, this specific auxiliary contact model does not feature an auto-test function for earth leakage.
It occupies a width of 1 modular spacing unit.
While designed for Siemens modular devices, compatibility with other brands should be verified against specific system requirements and wiring diagrams, though it is primarily intended for Siemens systems.
Please refer to the official Siemens warranty documentation or contact your supplier for specific warranty information, as it can vary by region and purchase agreement.
Verify that the 24 V DC power supply is correctly connected and within the specified voltage range. Check the wiring to the connected device (e.g., circuit breaker) and ensure the signal circuit is properly terminated.
Inspect all wiring connections for looseness or corrosion. Ensure the connected device is functioning correctly and that the auxiliary contact is properly seated within its mounting. Check for any physical damage to the contact or its wiring.
Confirm that the installation is attempted on a compatible Siemens modular device. Ensure the 1-modular-spacing requirement is met and that no obstructions are present in the mounting location.
Setup: This auxiliary contact is designed for easy integration with compatible Siemens modular devices. Ensure the device is correctly wired according to the system's electrical schematics, paying close attention to the 24 V DC power supply and the 20 mA signal connections.
Compatibility: Primarily intended for use with Siemens SENTRON 5ST3 series modular devices and circuit breakers. Verify compatibility with your specific control system and panel hardware before installation.
Care: As a static switching component, the Siemens Auxiliary Contact requires minimal physical maintenance. Keep the surrounding electrical enclosure clean and free from dust and moisture. Periodically check wiring connections for security. Do not attempt to open the unit for cleaning or repair; it is a sealed component.
