6ES7214-1BG40-0XB0

Product information

The 6ES7214-1BG40-0XB0 is a Siemens SIMATIC S7-1200 compact CPU designated CPU 1214C in the AC/DC/Relay configuration. It runs directly from 85–264 V AC mains, accepts 14 digital inputs at 24 V DC, and switches 10 relay outputs rated 2 A per contact, with 2 analog inputs at 0–10 V DC.

The AC supply and relay outputs are what distinguish this variant. Control cabinets that already have mains voltage available do not need a separate 24 V DC power supply for the CPU, and relay contacts can switch AC circuits or mixed load voltages directly — without the interface relays the transistor version would require. Where high switching frequency or pulse outputs are needed instead, the solid-state variant 6ES7214-1AG40-0XB0 is the equivalent CPU.

Technical specifications

Manufacturer / family	Siemens · SIMATIC S7-1200
Product type	CPU 1214C AC/DC/Relay
Firmware version	V4.7
Engineering software	STEP 7 V20 or higher
Work memory	150 kbyte integrated, not expandable
Load memory	4 Mbyte integrated
Retentive data area, max.	14 kbyte
Supply voltage	85–264 V AC, 47–63 Hz
Digital inputs	14 × 24 V DC
Digital outputs	10 × relay, 2 A per contact
Analog inputs	2 × 0–10 V DC
Analog outputs	None on board
CPU processing time, bit operations	0.08 µs typical
Expansion per system, max.	8 signal modules, 3 communication modules, 1 signal board
Communication	PROFINET with integrated switch
Ambient temperature	−20 … +60 °C
Degree of protection	IP20

Specifications as published in Siemens product data for this article number. Verify against the nameplate of the unit offered to you.

Lifecycle status

Siemens lists this article number as an active product with phase-out announced effective 2026-11-01. The SIMATIC S7-1200 G2 platform is identified as the successor generation, where the comparable AC-supplied CPU is the 6ES7214-1BH50-0XB0.

Typical applications

• Machine panels powered directly from mains where no separate 24 V DC supply is wanted for the controller
• Applications switching AC loads, or mixed AC and DC circuits from the same output card
• Small and medium machine control in packaging, material handling and assembly equipment
• Retrofit and replacement on existing S7-1200 AC/DC/relay installations

Application examples describe typical uses of this product type. Suitability for your own installation must be confirmed against your engineering documentation.

Related references in the S7-1200 range

• 6ES7214-1AG40-0XB0 — CPU 1214C DC/DC/DC, solid-state outputs
• 6ES7214-1BH50-0XB0 — CPU 1214C AC/DC/Relay on the newer S7-1200 G2 platform
• 6ES7215-1HG40-0XB0 — CPU 1215C DC/DC/Relay, higher memory, two analog outputs

Before you order

To confirm a specific unit, please provide the complete ordering code, hardware functional status, firmware version, a nameplate photograph, the quantity required and the delivery destination. Availability, condition, quantity, lead time and commercial terms are confirmed individually after inquiry.

Frequently asked questions

Can this CPU be connected directly to 220 V mains?
Yes. The rated supply range is 85–264 V AC at 47–63 Hz, which covers common single-phase mains voltages. The load circuit voltage and contact rating must still be checked separately.

What is the relay contact rating?
The ten integrated relay outputs are rated 2 A per contact. Confirm load type, inrush current and suppression requirements against your application.

Do relay outputs wear out?
Yes. Relay contacts have a finite mechanical and electrical life, which is why frequent or fast switching favours a solid-state output CPU instead.

Is the analog input differential or single-ended?
The two integrated analog inputs accept 0–10 V DC. Verify the wiring arrangement and grounding against the current Siemens manual for your application.

Is this CPU affected by the S7-1200 G2 transition?
Siemens has announced phase-out of this article number effective 2026-11-01, with S7-1200 G2 as the successor platform. Confirm current availability before committing to a volume requirement.

What is the price and lead time?
Confirmed individually against current availability for the specific revision and quantity.