Programmable Logic Controller Guide: Selection, Application, and Maintenance for Engineers
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- Part number
- 6ES7222-1HH32-0XB0
- Model no
- SM 1222, DQ 16x relay/2 A
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SIMATIC S7-1200Siemens 6ES7222-1HH32-0XB0 SIMATIC S7-1200 SM 1222 16 DO Relay 2A PLC I/O Module
SIMATIC S7-1200 SM 1222 digital output: 16 relay outputs, 2A per point, AC/DC switching.
Description
About the SM 1222, DQ 16x relay/2 A
About the SM 1222, DQ 16x relay/2 A
The Siemens 6ES7222-1HH32-0XB0 is a SIMATIC S7-1200 SM 1222 digital output module with 16 relay outputs rated 2A per point, switching either DC or AC loads directly. Supply comes from the backplane bus at 20.4-28.8V DC, and the relay coils are rated 24V DC with a mechanical life of 10 million operating cycles.
Certifications & Standards
- CE mark
- CSA approval
- UL approval
- cULus
- FM approval
- RCM
- KC approval
- Marine approval
Selection Notes
Choose this relay-output SM 1222 over a transistor-output DQ module when the load is AC (5-250V AC) or when a single station mixes AC and DC loads, since transistor outputs switch DC only. The 2A per-point rating lets it drive small contactors, solenoid valves or pilot lamps directly without an interposing relay. Because relay outputs carry no built-in short-circuit protection, external fusing or a circuit breaker per output group is required, unlike transistor DQ modules that include electronic protection.
Applications
Direct switching of contactors, solenoid valves, indicator lamps and other AC or DC loads from an S7-1200 station in machine control panels where mixed AC/DC output loads are common.
Specification
Full specification
General information 1
| Product type designation | SM 1222, DQ 16x 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. | 135 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 | 6ES7222-1HH32-0XB0 |
|---|---|
| Type designation | SM 1222, DQ 16x relay/2 A |
| Brand | Siemens |
| Condition | New, factory sealed |
| Source | Siemens and its authorised distributors |
| Warranty | Manufacturer warranty |
| Lifecycle status | Active, in production |
| EAN | 6940408101968 |
| ETIM class | EC001419 |
| eCl@ss | 27242204 |
Power loss 1
| Power loss, typ. | 8.5 W |
|---|
Digital outputs 19
| Number of digital outputs | 16 |
|---|---|
| in groups of | 1 |
| 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 | 16 |
| 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 | 4 |
| 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; Number of simultaneously activated outputs: 8 (no adjacent points) at 60 °C horizontal or 50 °C vertical, 16 at 55 °C horizontal or 45 °C vertical |
| 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 | 0.235 kg |
|---|---|
| Country of origin | DE |
| Shipping weight | 0.735 kg |
| Ships from | Türkiye |
| Dispatch | 16 Nov |
| Stock | In stock |
Source: manufacturer data · Last verified: 01 Nov 2026
Documents
Documents for 6ES7222-1HH32-0XB0
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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 16x relay/2 A
What is the rated current of SM 1222, DQ 16x relay/2 A?
The rated current of SM 1222, DQ 16x relay/2 A is 2 A.
Which supply voltage is SM 1222, DQ 16x relay/2 A rated for?
The rated operational voltage of SM 1222, DQ 16x relay/2 A is 5–250 V AC.
What is the HS code of SM 1222, DQ 16x relay/2 A for customs?
The tariff (HS) code on file for SM 1222, DQ 16x relay/2 A is 85389091.
What is the EAN of SM 1222, DQ 16x relay/2 A?
The EAN (GTIN) of SM 1222, DQ 16x relay/2 A is 6940408101968.
Where does SM 1222, DQ 16x relay/2 A ship from, and how fast?
SM 1222, DQ 16x 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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Reviews
Customer reviews
Series
Siemens SIMATIC S7-1200
- Brand
- Siemens
- Series
- SIMATIC S7-1200
