
6ES5440-8MA21
The transportation costs depend on the destination, purchase price, weight, shipping speed, and whether it is a pallet order.
Express shipping and rush orders
With express shipping, the product is delivered faster. For products that are not yet ready for shipping, you can place a rush order. These products still need to be revised.
A rush order is ready for shipping within 2 business days and can then be shipped express. This can be selected during checkout.
Description for 6ES5440-8MA21
The Siemens 6ES5440-8MA21 is a digital output module designed for integration into SIMATIC S5 automation systems, including S5-90U, S5-95U, S5-100U, ET 100U, and ET 200U. This module features four non-floating digital outputs, each capable of handling 24V DC at up to 2A, making it suitable for controlling a range of industrial actuators and devices within production environments. The robust build and reliable performance of the 6ES5440-8MA21 ensure consistent operation, even in demanding applications where uptime is critical. The module is constructed from high-quality industrial-grade materials to deliver long-term durability and stable electrical connections.
- Extensive stock for rapid delivery, minimizing production downtime with the 6ES5440-8MA21.
- Available as a refurbished option from Siemens, supporting sustainability and standard 2-year warranty coverage.
- Tested, high-quality Siemens engineering ensures safety and dependable performance in automated production lines with the 6ES5440-8MA21.
The module is easy to install and compatible with existing Siemens S5 systems, streamlining integration into both new and legacy production setups. The 6ES5440-8MA21 is particularly valued by project managers and production leaders who require reliable, fast, and sustainable solutions for digital output control.



