Siemens 6ES7214-1HG40-0XB0 Buyer's Guide: S7-1200 CPU 1214C DC/DC/DC for Worldwide Automation
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The Siemens 6ES7214-1HG40-0XB0 is the SIMATIC S7-1200 CPU 1214C DC/DC/DC compact PLC: a 24 VDC-powered controller with 14 digital inputs, 10 digital outputs, and 2 analog inputs, used for machine control, conveyor logic, and small process automation. It is programmed in TIA Portal and is widely stocked for worldwide export.
What is the Siemens 6ES7214-1HG40-0XB0?
A Siemens 6ES7214-1HG40-0XB0 is a compact programmable logic controller (PLC) from the SIMATIC S7-1200 family, specifically the CPU 1214C variant with DC/DC/DC I/O. It combines a 24 VDC power supply, digital and analog onboard I/O, and integrated PROFINET for connecting to HMIs, drives, and remote I/O.
Siemens designed the S7-1200 series for panel builders and OEMs who need a scalable controller without the footprint of a modular rack. The 1214C is the mid-size CPU in the family, offering more I/O and memory than the 1211C and 1212C while remaining more compact than the 1215C and 1217C.
Quotable definition
A Siemens 6ES7214-1HG40-0XB0 is a SIMATIC S7-1200 CPU 1214C compact PLC with 24 VDC power, 14 digital inputs, 10 digital outputs, 2 analog inputs, and integrated PROFINET, used for machine-level and small process automation.
Key specifications at a glance
| Attribute | Specification |
|---|---|
| Product family | SIMATIC S7-1200 |
| CPU model | CPU 1214C |
| Part number | 6ES7214-1HG40-0XB0 |
| Power supply | 24 VDC |
| Digital inputs | 14 DI (24 VDC sink/source) |
| Digital outputs | 10 DO (24 VDC transistor) |
| Analog inputs | 2 AI (0–10 VDC) |
| Communication | PROFINET (2 ports) |
| Programming software | TIA Portal (STEP 7 Basic/Professional) |
| Mounting | 35 mm DIN rail |
| Operating temperature | 0 °C to +55 °C (horizontal mounting) |
Note: Always verify the exact firmware version and any included accessories (memory card, connectors) with your supplier before ordering. The 6ES7214-1HG40-0XB0 is the DC/DC/DC variant; AC/DC/RLY and DC/DC/RLY variants exist under different part numbers.
How does the CPU 1214C work in a control system?
The CPU 1214C executes the user program stored in its internal memory, reads digital and analog inputs, and drives outputs according to the logic. It communicates over PROFINET to HMIs, drives, and remote I/O, and can be expanded with signal modules (SM) and communication modules (CM) on the right side.
For worldwide applications, the 24 VDC power requirement means the controller is compatible with both 50 Hz and 60 Hz supplies when fed from a standard 24 VDC power supply. This makes it suitable for export machinery destined for markets with either frequency.
Which variant of the S7-1200 suits your application?
The S7-1200 family includes several CPU sizes. The 1211C is the entry model with fewer I/O; the 1212C adds a little more; the 1214C (this part) is the mid-range workhorse; the 1215C and 1217C offer more memory and performance for larger programs. Choose the 1214C when you need 14 DI / 10 DO and 2 AI onboard and expect moderate expansion.
For applications requiring relay outputs, the 6ES7214-1BG40-0XB0 (AC/DC/RLY) or 6ES7214-1AG40-0XB0 (DC/DC/RLY) are alternatives. The DC/DC/DC variant covered here is preferred for high-speed switching and transistor-driven loads.
Selection criteria: how to choose the right PLC for your panel
- I/O count and type: Count digital inputs and outputs, and confirm whether you need relay or transistor outputs. The 1214C DC/DC/DC provides 14 DI and 10 DO transistor, plus 2 analog inputs.
- Power supply: Confirm your panel provides 24 VDC. If only 120/230 VAC is available, use a suitable power supply or choose an AC/DC/RLY variant.
- Communication requirements: PROFINET is standard; check whether you need additional protocols (e.g., Modbus TCP) via communication modules.
- Memory and performance: Estimate program size and scan time. The 1214C offers 100 KB work memory (typical), suitable for most machine-level programs.
- Environment: Verify ambient temperature, vibration, and enclosure rating. The S7-1200 is rated for 0 °C to +55 °C in horizontal mounting.
- Software and licensing: Confirm TIA Portal version compatibility and whether your team already holds licenses.
- Export and standards: For worldwide delivery, confirm the product carries the required markings (CE, UL, cULus) and that documentation is available in your language.
Product selection ladder: Siemens control and protection components from 3G Electric
The table below compares representative Siemens products from our stock, arranged from protective accessories to circuit breakers. Use it to build a complete panel around your S7-1200 CPU.
| Product | Function | Key rating | Typical use |
|---|---|---|---|
| Siemens Surge Suppressor for 3RT2 S0 Contactors | Surge protection accessory | For 3RT2 S0 frame contactors | Protects contactor coils and connected equipment from transient overvoltages |
| Siemens Surge Suppressor for 3RT2 and S00 Contactors | Surge protection accessory | For 3RT2 and S00 frame contactors | Voltage spike protection in motor control and automation circuits |
| Siemens B140 40 A Single-Pole Miniature Circuit Breaker | Branch circuit protection | 40 A at 120/240 VAC, 10 kA interrupting | Single-phase branch protection in Siemens P1 panelboards |
| Siemens BF130A 30 A Single-Pole GFCI Breaker | Ground fault protection | 30 A at 120 VAC, 10 kA interrupting | Personnel and equipment protection on 120 VAC circuits |
| Siemens BE220 20 A Two-Pole GFEP Breaker | Ground fault equipment protection | 20 A at 120/240 VAC, 10 kA interrupting | Equipment protection on single-phase 120/240 VAC systems |
| Siemens B330H 30 A Three-Pole Miniature Circuit Breaker | Three-phase protection | 30 A at 240 VAC, 22 kA interrupting | Three-phase branch protection in commercial and industrial panels |
When building a panel around the 6ES7214-1HG40-0XB0, start with the surge suppressors to protect contactor coils, then select circuit breakers based on your branch current and voltage. Step up to higher interrupting ratings (e.g., 22 kA) where fault current is high, and choose GFCI/GFEP breakers where personnel or equipment ground fault protection is required.
Why source the Siemens 6ES7214-1HG40-0XB0 from 3G Electric?
3G Electric stocks 298+ products across industrial automation, electrical, and control categories, backed by 35+ years of experience. We supply genuine Siemens components worldwide, with export documentation experience and incoterms-neutral supply. Our technical team can help you confirm compatibility, firmware, and accessory requirements before you order.
We are a distributor and supplier, not an authorized dealer for Siemens. We source through established channels and provide traceable documentation. For buyers in Worldwide, we offer competitive USD pricing and support for cross-market voltage and frequency variants.
Frequently asked questions
Q: What is the difference between 6ES7214-1HG40-0XB0 and 6ES7214-1AG40-0XB0?
A: The 6ES7214-1HG40-0XB0 is the DC/DC/DC variant with 24 VDC power and transistor outputs. The 6ES7214-1AG40-0XB0 is DC/DC/RLY with relay outputs. Choose DC/DC/DC for high-speed switching; choose relay for AC loads or higher current.
Q: Can I use the 6ES7214-1HG40-0XB0 in a 50 Hz or 60 Hz environment?
A: Yes. The CPU is powered by 24 VDC, so it is independent of AC line frequency. You can use it in both 50 Hz and 60 Hz markets, provided your 24 VDC power supply is suitable for the local input voltage.
Q: What software do I need to program the 6ES7214-1HG40-0XB0?
A: You need Siemens TIA Portal (STEP 7 Basic or Professional). Confirm the TIA Portal version supports the firmware version of your CPU. Older CPUs may require specific TIA versions.
Q: How do I order the Siemens 6ES7214-1HG40-0XB0 in Worldwide?
A: Contact 3G Electric for a quote. We supply worldwide with export documentation and can advise on lead times, shipping terms, and any accessory requirements such as memory cards or connectors.
Q: What accessories are recommended with the 6ES7214-1HG40-0XB0?
A: Common accessories include a SIMATIC memory card, PROFINET connectors, and 24 VDC power supply. For panel protection, consider Siemens surge suppressors and circuit breakers from our stock.
Key takeaways
- The Siemens 6ES7214-1HG40-0XB0 is a SIMATIC S7-1200 CPU 1214C with 24 VDC power, 14 DI, 10 DO, and 2 AI.
- It is ideal for machine-level automation and small process control, programmed in TIA Portal.
- Confirm firmware, memory card, and power supply compatibility before ordering.
- 3G Electric supplies genuine Siemens components worldwide with technical support and export documentation.
- Pair the CPU with Siemens surge suppressors and circuit breakers for a complete, protected panel.
Ready to specify or order? Contact 3G Electric for quotes, sizing assistance, and technical support on the Siemens 6ES7214-1HG40-0XB0 and related control components.
