Part number
6ES7222-1HF32-0XB0
Model no
SM 1222, DQ 8x relay/2 A
$151.11 In stock · 50+ Dispatch Planned dispatch date. We aim to ship within 1 business day. Depending on warehouse workload it can take 2–3 business days. · From Türkiye
SIMATIC S7-1200

Siemens 6ES7222-1HF32-0XB0 SIMATIC S7-1200 SM1222 8DO Relay 2A PLC I/O Module

SIMATIC S7-1200 SM 1222 relay output module, 8 DO, 2A per channel, 5-250V AC/DC switching.

Rated current
2 A
Rated operational voltage
5–250 V AC
Display
LED for output status
EAN
6940408101944
Description

About the SM 1222, DQ 8x relay/2 A

The Siemens SIMATIC S7-1200 SM 1222 (6ES7222-1HF32-0XB0) is a relay digital output module with 8 outputs rated 2 A each, switching 5 - 30 V DC or 5 - 250 V AC loads directly from an S7-1200 station. Contacts handle 10 million mechanical cycles, or 100,000 at rated load, switching up to 30 W DC or 200 W AC lamp loads in a 45 x 100 x 75 mm, 0.174 kg IP20 housing.

Certifications & Standards

  • CE mark
  • CSA approval
  • UL approval
  • cULus
  • FM approval
  • RCM
  • KC approval
  • Marine approval

Selection Notes

Relay outputs switch AC loads directly, up to 250 V AC at 200 W lamp load, which a transistor DO module can't, at the cost of a mechanical life limited to 100,000 cycles at rated load versus millions of cycles for solid-state switching. Choose the transistor-output SM 1222 variant in the same family instead for high-cycle-rate DC loads where contact wear would be the limiting factor.

Applications

Switches mixed AC/DC loads directly from an S7-1200 station, including contactor coils, indicator lamps, and small motor starters, without an external interposing relay.

Specification

Full specification

78 values · Last verified 01 Nov 2026

General information 1

Product type designation SM 1222, DQ 8x relay/2 A

Supply voltage 2

permissible range, lower limit (DC) 20.4 V
permissible range, upper limit (DC) 28.8 V

Input current 2

from backplane bus 5 V DC, max. 120 mA
Digital outputs: from load voltage L+, max. 11 mA/relay coil
Show all 78 specifications ↓ Show less ↑73 more values in Identification, Power loss, Digital outputs, Interrupts/diagnostics/status information, Potential separation, Permissible potential difference, Degree and class of protection, Standards, approvals, certificates, Ambient conditions, Connection method, Mechanics/material, Version Classification, Logistics.

Identification 10

Part number 6ES7222-1HF32-0XB0
Type designation SM 1222, DQ 8x relay/2 A
Brand Siemens
Condition New, factory sealed
Source Siemens and its authorised distributors
Warranty Manufacturer warranty
Lifecycle status Active, in production
EAN 6940408101944
ETIM class EC001419
eCl@ss 27242204

Power loss 1

Power loss, typ. 4.5 W

Digital outputs 19

Number of digital outputs 8
in groups of 2
Short-circuit protection No; to be provided externally
Switching capacity of the outputs: with resistive load, max. 2 A
Switching capacity of the outputs: on lamp load, max. 30 W with DC, 200 W with AC
Output voltage: Rated value (DC) 5 V DC to 30 V DC
Output voltage: Rated value (AC) 5 V AC to 250 V AC
Output current: for signal "1" rated value 2 A
Output delay with resistive load: "0" to "1", max. 10 ms
Output delay with resistive load: "1" to "0", max. 10 ms
Total current of the outputs (per group) horizontal installation: up to 50 °C, max. 10 A; Current per mass
Relay outputs: Number of relay outputs 8
Relay outputs: Rated supply voltage of relay coil L+ (DC) 24 V
Relay outputs: Number of operating cycles, max. Switching capacity of contacts mechanically 10 million, at rated load voltage 100 000
Relay outputs: with inductive load, max. 2 A
Relay outputs: on lamp load, max. 30 W with DC, 200 W with AC
Relay outputs: with resistive load, max. 2 A
Cable length: shielded, max. 500 m
Cable length: unshielded, max. 150 m

Interrupts/diagnostics/status information 2

Alarms: Diagnostic alarm Yes
Diagnostics indication LED: for status of the outputs Yes

Potential separation 3

Potential separation digital outputs: between the channels Relays
Potential separation digital outputs: between the channels, in groups of 2
Potential separation digital outputs: between the channels and backplane bus 1 500 V AC for 1 minute

Permissible potential difference 1

between different circuits 750 V AC for 1 minute

Degree and class of protection 1

IP degree of protection IP20

Standards, approvals, certificates 13

CE mark Yes
CSA approval Yes
UL approval Yes
cULus Yes
FM approval Yes
RCM (formerly C-TICK) Yes
KC approval Yes
Marine approval Yes
Ecological footprint: environmental product declaration Global warming potential Yes
Ecological footprint: global warming potential, (total) [CO2 eq] 68.6 kg
Ecological footprint: global warming potential, (during production) [CO2 eq] 8.16 kg
Ecological footprint: global warming potential, (during operation) [CO2 eq] 60.7 kg
Ecological footprint: global warming potential, (after end of life cycle) [CO2 eq] -0.334 kg

Ambient conditions 11

Free fall: Fall height, max. 0.3 m; five times, in product package
Ambient temperature during operation: min. -20 °C
Ambient temperature during operation: max. 60 °C
Ambient temperature during operation: horizontal installation, min. -20 °C
Ambient temperature during operation: vertical installation, min. -20 °C
Ambient temperature during operation: permissible temperature change 5°C to 55°C, 3°C / minute
Ambient temperature during storage/transportation: min. -40 °C
Ambient temperature during storage/transportation: max. 70 °C
Air pressure acc. to IEC 60068-2-13: Storage/transport, min. 660 hPa
Air pressure acc. to IEC 60068-2-13: Storage/transport, max. 1 080 hPa
Relative humidity: Operation at 25 ℃ without condensation, max. 95 %

Connection method 1

required front connector Yes

Mechanics/material 1

Enclosure material (front): Plastic Yes

Version Classification 4

eClass 16 27-24-22-04
ETIM 10 EC001419
IDEA 4 3566
UNSPSC 15 32-15-17-05

Logistics 6

Net weight 0.174 kg
Country of origin DE
Shipping weight 0.674 kg
Ships from Türkiye
Dispatch 13 Nov
Stock In stock

Source: manufacturer data · Last verified: 01 Nov 2026

Documents

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Ask us for the datasheet
Certifications

Certifications and standards

  • CE mark
  • CSA approval
  • UL approval
  • cULus
  • FM approval
  • RCM (formerly C-TICK)
  • KC approval
  • Marine approval
Quick answers

Questions about the SM 1222, DQ 8x relay/2 A

What is the rated current of SM 1222, DQ 8x relay/2 A?

The rated current of SM 1222, DQ 8x relay/2 A is 2 A.

Which supply voltage is SM 1222, DQ 8x relay/2 A rated for?

The rated operational voltage of SM 1222, DQ 8x relay/2 A is 5–250 V AC.

What is the HS code of SM 1222, DQ 8x relay/2 A for customs?

The tariff (HS) code on file for SM 1222, DQ 8x relay/2 A is 85389091.

What is the EAN of SM 1222, DQ 8x relay/2 A?

The EAN (GTIN) of SM 1222, DQ 8x relay/2 A is 6940408101944.

Where does SM 1222, DQ 8x relay/2 A ship from, and how fast?

SM 1222, DQ 8x relay/2 A ships from Türkiye. Shipping calculated at checkout · import duties and taxes paid on arrival. Stock items are dispatched within 1–2 business days.

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Series

Siemens SIMATIC S7-1200

Brand
Siemens
Series
SIMATIC S7-1200
$151.11 In stock · 13 Nov
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SM 1222, DQ 8x relay/2 A

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Siemens · 6ES7222-1HF32-0XB0

Every part on Stoklink is new, unused and made by the manufacturer named on the page.

Condition
New and unused, in the manufacturer's factory-sealed packaging.
Sourced from
Siemens and its authorised distributors.
Warranty
The manufacturer's warranty applies.
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