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Siemens SIMATIC S5-90U Compact Unit with Battery

Siemens SIMATIC S5-90U Compact PLC with 10DI, 6 Relay Outputs.

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ManufacturerSiemens

Part number6ES5090-8MA01

Model SIMATIC S5-90U

Digital Inputs 10 x 24V DC

Relay Outputs 6

Mains Voltage 115/230V AC

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Compact all-in-one design 10 x 24V DC inputs 6 relay outputs 115/230V AC mains connection Integrated battery for memory backup SIMATIC S5 series

Product description

The Siemens SIMATIC S5-90U is a compact programmable logic controller designed for standalone applications. This unit includes an enclosed battery for memory retention and features 10 digital inputs (24V DC) and 6 relay outputs. It is designed for mains voltage connection of 115/230V AC, making it versatile for various power supply environments.

This PLC is suitable for smaller automation tasks where a compact and integrated solution is required. Applications include standalone machine control, material handling systems, and basic process automation where a limited I/O count is sufficient. The S5 series is known for its robustness and reliability in industrial settings.

As a veteran-owned surplus parts distributor, Stanlo Automation specializes in providing legacy and hard-to-find components like the Siemens SIMATIC S5-90U. We help you keep your older systems running efficiently with access to essential parts.

Technical specifications

Model	SIMATIC S5-90U
Digital Inputs	10 x 24V DC
Relay Outputs	6
Mains Voltage	115/230V AC
Memory Retention	Enclosed battery
Series	SIMATIC S5

Common applications

Small machine control

Material handling

Basic process automation

OEM equipment

Standalone control tasks

Compatible systems

SIMATIC S5 series programming software 24V DC sensors 115/230V AC power sources

Also known as

Siemens S5-90U PLC 6ES50908MA01 SIMATIC S5 Compact Controller

Replaces / compatible with

This unit is part of the SIMATIC S5 series. While S5 is a legacy platform, it can often be integrated with newer systems via communication modules or used as a direct replacement for existing S5-90U installations.

Technical note

Expert tip

The S5 series is a legacy platform. Ensure you have appropriate programming software (e.g., STEP 5) and knowledge for this generation of Siemens controllers, as well as availability of spare parts.

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Frequently asked questions

What type of inputs and outputs does the Siemens 6ES5090-8MA01 S5-90U unit feature?

The Siemens SIMATIC S5-90U (6ES5090-8MA01) features 10 digital inputs, each rated for 24V DC, and 6 relay outputs. It also includes an enclosed battery for memory backup and operates on 115/230V AC mains voltage.