
Siemens 6AV7674-1MD00-0AA0 Extension Unit Selector Switch
This component serves as a latching selector switch for industrial extension units. It features a 22mm round plastic design with integrated white LED illumination.
Quick Facts
- Part number
- 6AV7674-1MD00-0AA0
- Brand
- Siemens
- Category
- HMI Panels
- Product type
- Extension Units and operator controls
- Lifecycle
- Active Product
- Dimensions
- 15.7 x 13.1 x 2.9 cm
- Net weight
- 0.027 Kg
- Source category
- Extension Units and operator controls
Product Overview
The Siemens 6AV7674-1MD00-0AA0 is recorded as an active product within the extension units and operator controls category. This selector switch supports three distinct positions labeled one, zero, and two for operational control. Review Siemens 6AV7674-1MD00-0AA0 as Extension Units and operator controls with source category Extension Units and operator controls, recorded lifecycle Active Product, and submitted model identity.
Designed for integration into industrial systems, this unit includes a printed circuit board with a contact module. The scope of supply provides one selector switch alongside necessary mounting accessories for installation.
Technical Review Notes
- Physical dimensions are listed as 15.7 centimeters in length, 13.1 centimeters in width, and 2.9 centimeters in height for spatial planning.
- The net weight of the component is recorded at 0.027 kilograms, indicating a lightweight construction listed for various mounting configurations.
- The switch mechanism operates with a latching function, maintaining position without continuous manual pressure during standard industrial operations.
- Electrical configuration includes two normally open contacts, facilitating specific signal transmission requirements within the connected control circuitry.
- An integrated white LED provides visual indication, enhancing visibility of the current switch position in diverse lighting conditions.
- The actuator is constructed from plastic material, offering durability and resistance to common environmental factors found in industrial settings.
Model Identification
- The part number 6AV7674-1MD00-0AA0 uniquely identifies this specific selector switch variant within the Siemens product portfolio.
- This model is classified under the broader category of extension units and operator controls for system integration purposes.
- The lifecycle status is documented as an active product, confirming its current recognition in manufacturer catalogs and databases.
- Source categorization places this item under protected devices and system components, highlighting its role in controlled environments.
Technical Parameters
| Product type | Extension Units and operator controls |
|---|---|
| Lifecycle | Active Product |
| Dimensions | 15.7 x 13.1 x 2.9 cm |
| Net weight | 0.027 Kg |
| Source category | Extension Units and operator controls |
Parameters are factual source fields retained for model review.
Parameter Review
- Review the physical size constraints of 15.7 by 13.1 by 2.9 centimeters against panel cutout specifications.
- Verify the electrical requirements for the two normally open contacts match the intended control logic design.
- Check the mounting accessory inclusion to ensure all necessary hardware is accounted for during assembly procedures.
- Confirm the white LED integration aligns with visibility standards required for the specific operational environment.
- Assess the plastic actuator material properties for suitability regarding chemical exposure or mechanical stress in the application.
Catalog Classification
Image & Label Review
- Inspect the front view to confirm the round 22mm actuator diameter matches the designated panel opening size.
- Examine the side profile to verify the 2.9 centimeter depth fits within the recorded enclosure space constraints.
- Check the rear connection area to identify the printed circuit board interface for proper wiring integration steps.
- Review the LED indicator placement to ensure it remains visible and unobstructed after final installation completion.
Product Image Gallery

Inquiry Preparation
- Gather project documentation specifying the required three-position functionality for the one-zero-two operational sequence.
- Prepare technical drawings showing the panel cutout dimensions to ensure the 22mm actuator fits correctly.
- Compile electrical schematics highlighting the need for two normally open contacts in the control circuit design.
- Document environmental conditions to assess if the plastic housing and LED illumination meet operational visibility needs.
Category Context
This component belongs to the extension units and operator controls segment of industrial automation hardware systems.
It falls under the protected devices and system components classification, emphasizing its role in secure operation.
Review Notes
- Ensure the submitted inquiry includes the exact part number 6AV7674-1MD00-0AA0 for precise identification.
- Provide detailed dimensional requirements to confirm application context with existing panel layouts and mounting structures.
- Specify any additional technical questions regarding the integrated LED or contact module performance characteristics.
- Attach relevant project specifications to assist in verifying the suitability of this active product for your needs.



