6ES7422-1HH00-0AA0 - Digital Output Module - SIEMENS

SIMATIC S7-400 digital output module 6ES7422-1HH00-0AA0, reliable relay switching for 5 to 230 V AC/DC

Built for production environments where downtime is not an option, the SIEMENS 6ES7422-1HH00-0AA0 digital I/O module integrates natively with SIMATIC S7-400 controllers. It provides 16 digital outputs on relay contacts, capable of driving loads from 5 to 230 V AC/DC. This architecture offers great application flexibility, from contactor coils and solenoid valves to indicators and alarms, while ensuring natural isolation between the control circuit and connected loads. Aimed at maintenance managers, integrators and automation engineers, this module helps standardize actuator fleets, simplify schematics and secure switching across heterogeneous equipment. Delivered new and sealed, it comes with a 12-month warranty. Standard Exchange Industry supports your commissioning with fast availability and tailored services to minimize downtime.

Operational benefits for critical lines

• Wide voltage range – Relay outputs accept 5 to 230 V AC/DC, making it easier to drive varied loads without multiplying module references.
• Isolation via relay contacts – Control/power separation limits interference and helps protect the PLC from disturbances generated by the loads.
• Native integration with SIMATIC S7-400 – The module mounts in the S7-400 rack and is used according to standard SIMATIC programming and diagnostic practices.
• 16 digital outputs available – Density suited to compact control cabinets, allowing grouping of actuators by area and neat cable management.
• SIEMENS reliability – Industrial-grade manufacturing, suitable for high cycles and planned maintenance interventions.

Key characteristics and build quality

The 6ES7422-1HH00-0AA0 is a SIMATIC S7-400 digital I/O module equipped with 16 relay outputs. Mechanical contact switching allows control of AC and DC loads across a wide voltage range, 5 to 230 V, reducing compatibility constraints during retrofits or expansions. The design is intended for direct integration into the S7-400 chassis via the backplane bus, behaving consistently with SIMATIC engineering standards. The unit is delivered new in original sealed packaging and covered by a 12-month warranty. The listed dimensions are 26 x 40 x 60 cm with a weight of 5.03 kg, useful parameters for cabinet planning and on-site logistics. The assembly meets common industrial requirements for robustness and continuity of service, with a component proven in many automation contexts. No superfluous data is added, the focus being on switching reliability and system compatibility.

Typical uses and application contexts

The module is intended for discrete production lines, assembly workshops, process skids, test platforms and validation benches. It is suitable for driving heterogeneous actuators such as contactors, solenoid valves, indicator lights, sounders or auxiliary devices operating in AC or DC within the specified range. It is a preferred solution for upgrading S7-400 installations, standardizing control cabinets and maintaining operational readiness of critical equipment.

Differentiation, longevity and reassurance

The 6ES7422-1HH00-0AA0 benefits from SIEMENS' experience in industrial automation, with proven compatibility within the SIMATIC S7-400 ecosystem. Relay switching simplifies management of AC/DC loads and avoids multiplying specialized references. Standard Exchange Industry reinforces this offering with a service focused on availability and business continuity, including a 12-month warranty, fast supply options and technical support by automation specialists. The objective is clear: reduce the risk of prolonged downtime and secure operational performance.

Speed up your return to service with a reliable reference. Request your quote for the SIEMENS 6ES7422-1HH00-0AA0, availability 24-72 h depending on stock, international delivery and professional SEI support.