SIMATIC S7-200 SMART, CPU SR20, Standard CPU Module, relay output, 220 V AC or 110 DC power supply, 12 inputs/8 outputs
SIMATIC S7-200 SMART, CPU SR20, Standard CPU Module, relay output, 220 V AC or 110 DC power supply, 12 inputs/8 outputs - Image 2

SIMATIC S7-200 SMART, CPU SR20, Standard CPU Module, relay output, 220 V AC or 110 DC power supply, 12 inputs/8 outputs

SKU: 6ES7288-1SR20-0AA1 Categories: ,

$175.85 – $195.38

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CPU SR20, standard CPU — 12DI/8DO relay, 20KB program/data memory, supports AC 85-264V or DC 77-138V power input. [VERIFIED via Siemens official datasheet]

Technical Specifications

Variant SR20 AC/DC/Relay
Digital I/O 12 DI 24V DC / 8 DO Relay 2A
Power Supply AC 85–264V, 47–63Hz, or DC 77–138V
Program/Data Memory 20 KB
Security Note Per CISA advisory ICSA-24-165-02, S7-200 SMART CPU firmware versions affected by CVE-2024-35292 (predictable IP ID sequence number, CVSS up to 8.8) should be checked and updated where a network-facing deployment is planned.

Typical Applications

Smallest relay-output standard CPU, with flexible power input supporting both wide-range AC and DC supply — suited for small machines needing relay switching with installation flexibility on available power source.

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