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SIEMENS 6ES7521-1FH00-0AA0 SIMATIC S7-1500 Digital Input Module DI 16x230 V AC BA

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SIMATIC S7-1500

6ES7521-1FH00-0AA0

INPUT CHANNELS

Digital inputs

RATED INPUT

230 V AC

120 / 230 V AC

INPUT DELAY

20 ms

Rated input voltage

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Product Details

6ES7521-1FH00-0AA0

Overview Technical Data Application FAQ Related Models Contact

SIMATIC S7-1500 · SM 521

6ES7521-1FH00-0AA0

Digital Input Module DI 16x230 V AC BA

SIMATIC S7-1500 digital input module with 16 AC input channels arranged in groups of four. The module is designed for 120/230 V AC input signals and provides a fixed 20 ms input delay.

16 Digital Inputs

120/230 V AC Rated Input

20 ms Input Delay

SM 521

DI 16

230 V AC BA

CORE SPECIFICATIONS

Technical Data at a Glance

6ES7521-1FH00-0AA0

INPUT CHANNELS

Digital inputs

INPUT VOLTAGE

120/230 V

AC · 50/60 Hz

INPUT DELAY

20 ms

Product-level specification

CHANNEL GROUPING

4 × 4

Four groups of four channels

SIGNAL RANGE

0–40 V AC → Signal 0

79–264 V AC → Signal 1

INPUT CURRENT

11 mA typical at 230 V AC

5.5 mA typical at 120 V AC

POWER

1 W from the backplane bus

Typical module power loss: 4.9 W

CONNECTION

Front connector required

Screw-terminal or push-in versions are ordered separately.

SYSTEM USE

Where This Module Fits

The 6ES7521-1FH00-0AA0 is used within the SIMATIC S7-1500 architecture as a digital AC input module. Its 16 inputs are arranged in four groups of four and are electrically isolated in groups. It is suited to switching signals from switches and 2-, 3- and 4-wire AC proximity switches.

● AC switching signals

● Industrial switches

● AC proximity switches

● S7-1500 automation systems

When an AC field signal is no longer detected correctly, a replacement search may focus on the input module, field wiring, switching device, or associated channel group. Because the module participates directly in machine signal acquisition, an input-module fault can prevent the controller from receiving required field states and may contribute to an operational stop.

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BUYER QUESTIONS

5 Practical Questions Before Ordering

01 · What exactly is 6ES7521-1FH00-0AA0 used for?

It is a SIMATIC S7-1500 SM 521 digital input module with 16 AC input channels. It is intended to acquire 120/230 V AC switching signals within an S7-1500 system.

02 · Can this module work with 120 V AC as well as 230 V AC?

Yes. The specified AC rated range covers 120/230 V AC at 50/60 Hz. The typical signal-current values are 5.5 mA at 120 V AC and 11 mA at 230 V AC.

03 · How many field signals can one 6ES7521-1FH00-0AA0 handle?

The module provides 16 digital inputs. They are arranged as four groups, with four channels in each group.

04 · What should I check when an AC input is not reaching the PLC?

Check the field voltage, wiring, switching device, channel group, and module connection. A valid signal is specified as 79–264 V AC, while 0–40 V AC corresponds to signal 0.

05 · Does the replacement module include the front connector?

No. The front connector is ordered separately. The compatible front connection can be specified with screw terminals or push-in connection according to the installation requirement.

DELIVERY

3–5 Days

WARRANTY

6–12 Months

PACKAGING

Brand New

PAYMENT

T/T

Delivery way: E-packing / FedEx / EMS / TNT / DHL / UPS

REQUEST DETAILS

Need 6ES7521-1FH00-0AA0?

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Sales Manager: Miya Zheng

✉ sales@amikon.cn

☎ +86 18020776792

Refund & Replacement

1. Please contact us within 7 days if you have any question after you receiving the items.

2. Returned items should remain in their original condition, with the reason for return provided; a return or replacement will be arranged after the returned items are received.

3. The buyer is responsible for shipping costs associated with the return.

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