SM 1222 RELAY OUTPUT · 16 CHANNELS · 2 A CONTACT RATING
Siemens SM 1222 SIMATIC S7-1200 Output Modules
Requested configuration: 6ES7222-1HH32-0XB0
The 16-relay execution of the SM 1222 family, identified by the complete order number 6ES7222-1HH32-0XB0.
Overview
6ES7222-1HH32-0XB0 is the 16-output relay version of the SIMATIC S7-1200 SM 1222 signal module. Each output is a mechanical relay contact intended for suitable AC or DC field loads. Siemens rates the contacts at up to 2 A for resistive or inductive service within the published limits.
This execution accepts a 24 VDC relay-coil supply from 20.4 to 28.8 VDC and draws up to 135 mA from the 5 V backplane bus. The module does not provide output short-circuit protection, so branch protection and load suppression remain part of the panel design.
Specifications
Features
Relay isolation for varied loads
Mechanical contacts let the module switch appropriate AC or DC circuits without forcing a transistor-output wiring scheme.
Sixteen-point density
A single SM 1222 adds sixteen commanded field outputs to an S7-1200 station.
Visible operating boundary
The contact rating, lamp-load limit and switching frequency can be documented directly against each connected load.
Serviceable project mapping
The point addresses remain tied to the STEP 7 hardware configuration and terminal schedule during replacement.
About IndustryParts
https://www.industryparts.com/Exact identity before quotation
IndustryParts prepares 6ES7222-1HH32-0XB0 enquiries around the complete manufacturer label, requested quantity and destination. For controlled replacements, include the host-system record, field photographs and configuration evidence that apply to this exact execution.
Applications
Machine auxiliaries
Switching contactors, pilot devices or interposing relays after the connected load has been checked against the contact limits.
Mixed-voltage panels
Separating approved AC and DC load groups through the documented terminal and protection arrangement.
S7-1200 expansion
Adding sixteen relay-command points where slower mechanical switching is suitable for the process.
Lifecycle
Before removal
Archive the STEP 7 hardware configuration and record all sixteen terminal assignments, commons, field voltages and external fuses.
During exchange
Isolate every load source, preserve suppression devices and install only after the complete 6ES7222-1HH32-0XB0 label is confirmed.
After energization
Command each point individually, check the connected device response and record contact, fuse and common-circuit results.
FAQ
Can 6ES7222-1HH32-0XB0 drive a load without an external protective device?
No. Siemens specifies no onboard short-circuit protection, so the field circuit needs protection engineered for its conductor and connected load.
What should be reviewed before moving a load to 6ES7222-1HH32-0XB0?
Confirm AC or DC voltage, steady current, inrush, lamp wattage, inductive suppression and required switching frequency against the relay limits.
Is 6ES7222-1HH32-0XB0 interchangeable with a 16-point transistor SM 1222?
Not as a wiring-equivalent replacement. Relay and transistor outputs have different voltage, current, switching-speed, leakage and protection behavior.
Why should the STEP 7 project accompany an 6ES7222-1HH32-0XB0 enquiry?
The hardware catalog selection and channel addresses show how the sixteen outputs are assigned in the installed S7-1200 station.
What proves an 6ES7222-1HH32-0XB0 replacement is ready for service?
A point-by-point command test, correct load response, verified commons, intact protection and an updated terminal record provide the acceptance evidence.
Send the complete 6ES7222-1HH32-0XB0 label, requested quantity and destination.
