Siemens S7-1200, fail-safe CPU, order code 6ES72121HF500XB0, relay outputs, screw terminals, Ethernet, 24 V DC, IP20.
Siemens 6ES72121HF500XB0 S7-1200 CPU, Relay Output, 24VDC
MPN6ES72121HF500XB0
Siemens S7-1200, fail-safe CPU, order code 6ES72121HF500XB0, relay outputs, screw terminals, Ethernet, 24 V DC, IP20.
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MOQ1 pcs
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Jul 2026
How we verify every order →Specifications
| Parameter | Value |
|---|---|
| Output signal | Relay Output |
| Terminal type | Screw terminal |
| Interface | Ethernet |
| Supply voltage | 24 V DC |
| IP rating | IP20 |
| Mounting fastener | DIN Rail |
Product details
Frequently asked questions
What is the closest functional second-source – the 6ES7212-1HF50-0XB0?
The 6ES7212-1HF50-0XB0 is a sibling in the same fail-safe CPU family. Both share relay outputs, screw terminals, Ethernet, and DIN-rail mounting. The exact functional equivalence depends on firmware version; verify compatibility in your project.
What is the IP rating of the 6ES72121HF500XB0?
The listed IP rating is IP20, suitable for enclosure installation.
What is the output type of the 6ES72121HF500XB0?
The output type is relay output, rated for switching inductive loads.
Will the 6ES72121HF500XB0 drop into a panel specified around the 6ES7212-1HF50-0XB0 without rewiring?
Given shared screw-terminal type and DIN-rail mounting, the physical fit is identical. However, confirm the I/O assignment and firmware version before using as a drop-in replacement.
MPN
6ES72121HF500XB0