Programmable Logic Controller Guide: Selection, Application, and Maintenance for Engineers
PLC selection guide for engineers covering IEC 61131 compliance, Siemens, Rockwell, Schneider, ABB comparison, scan time sizing, and wiring. Shop at Stoklink.
The Siemens 6ES7222-1BH32-0XB0 is a SIMATIC S7-1200 digital output module (SM 1222) with 16 transistor outputs rated 24 V DC at 0.5 A per channel, expanding a CPU rack with additional discrete outputs. Outputs are not internally short-circuit protected, so external fusing or protection is required per channel.
Each output switches independently (grouped in ones, not fours), so one shorted or overloaded channel does not drag down its neighbors — but because the module has no internal short-circuit protection, size external fusing per channel at or below 0.5 A to protect the transistor stage. The 200 µs turn-off delay with resistive load suits most contactor and solenoid coils; for higher-frequency switching or lamp loads, check the 5 W lamp-load rating against actual inrush current before wiring incandescent indicators directly.
Driving 24 V DC loads such as indicator lamps, small relays, and solenoid valves directly from an S7-1200 CPU rack without an external output relay module.
| Product type designation | SM 1222, DQ 16x24 V DC/0.5 A |
|---|
| permissible range, lower limit (DC) | 20.4 V |
|---|---|
| permissible range, upper limit (DC) | 28.8 V |
| from backplane bus 5 V DC, max. | 140 mA |
|---|
| Part number | 6ES7222-1BH32-0XB0 |
|---|---|
| Type designation | SM 1222, DQ 16x24 V DC/0.5 A |
| Brand | Siemens |
| Condition | New, factory sealed |
| Source | Siemens and its authorised distributors |
| Warranty | Manufacturer warranty |
| Lifecycle status | Active, in production |
| EAN | 6940408101951 |
| ETIM class | EC001419 |
| eCl@ss | 27242204 |
| Power loss, typ. | 2.5 W |
|---|
| Number of digital outputs | 16 |
|---|---|
| in groups of | 1 |
| Short-circuit protection | No; to be provided externally |
| Limitation of inductive shutdown voltage to Switching capacity of the outputs | typ. (L+) -48 V |
| with resistive load, max. | 0.5 A |
| on lamp load, max. | 5 W |
| Output voltage: Rated value (DC) | 24 V |
| Output voltage: for signal "0", max. | 0.1 V; with 10 kOhm load |
| Output voltage: for signal "1", min. | 20 V DC |
| Output current: for signal "1" rated value | 0.5 A |
| Output current: for signal "0" residual current, max. | 10 µA |
| Output delay with resistive load: "0" to "1", max. | 50 µs |
| Output delay with resistive load: "1" to "0", max. | 200 µs |
| Total current of the outputs (per group) horizontal installation: up to 50 °C, max. | 8 A; Current per mass |
| Cable length: shielded, max. | 500 m |
| Cable length: unshielded, max. | 150 m |
| Alarms: Diagnostic alarm | Yes |
|---|---|
| Diagnostics indication LED: for status of the outputs | Yes |
| Potential separation digital outputs: between the channels, in groups of | 1 |
|---|---|
| Potential separation digital outputs: between the channels and backplane bus | 500 V AC |
| IP degree of protection | IP20 |
|---|
| 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 |
| 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 % |
| required front connector | Yes |
|---|
| Enclosure material (front): Plastic | Yes |
|---|
| Width | 45 mm |
|---|---|
| Height | 100 mm |
| Depth | 75 mm |
| Weight, approx. | 220 g |
|---|
| eClass | 12 27-24-22-04 |
|---|---|
| ETIM | 10 EC001419 |
| IDEA | 4 3566 |
| UNSPSC | 15 32-15-17-05 |
| Miscellaneous CCC-Ex NK / Nippon Kaiji Ky- | okai |
|---|
| Net weight | 0.195 kg |
|---|---|
| Country of origin | DE |
| Shipping weight | 0.695 kg |
| Ships from | Türkiye |
| Dispatch | 13 Nov |
| Stock | In stock |
Source: manufacturer data · Last verified: 01 Nov 2026
No documents are on file for this part yet.
Ask us for the datasheetThe rated current of SM 1222, DQ 16x24 V DC/0.5 A is 0.5 A.
The rated operational voltage of SM 1222, DQ 16x24 V DC/0.5 A is 24 V AC.
The tariff (HS) code on file for SM 1222, DQ 16x24 V DC/0.5 A is 85389091.
The EAN (GTIN) of SM 1222, DQ 16x24 V DC/0.5 A is 6940408101951.
SM 1222, DQ 16x24 V DC/0.5 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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