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Siemens 6ED10521FB080BA2

Siemens 6ED10521FB080BA2 LOGO! 8.4 Logic Module, 8DI/4DO, LC

MPN6ED10521FB080BA2

Siemens LOGO! 8.4, 6ED10521FB080BA2, (8) Digital Inputs, (4) Digital Relay Outputs, LCD Display, 115–230 V AC/DC, DIN Rail Mount.

$97.79 – $179.50Ref. price · indicative, final on quote
Siemens 6ED10521FB080BA2 datasheet (PDF)
StockContact for availability
MOQ1 pcs
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Jul 2026
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Specifications

6ED10521FB080BA2 key specifications
ParameterValue
SeriesLOGO! 8.4
Voltage range DC max253
Voltage range DC min100
MountingDIN Rail
Terminal_typeScrew Terminal
Altitude max1080
Depth59.944
Weight1000
Width81.026
Height72.898
I/O channels(8) Digital
Data_buffer480 hrs

All specifications

6ED10521FB080BA2 additional specifications
ParameterValue
Display_typeLCD
Feature_listData Log; Integrated Web Server; Modular Expandable; User-Defined Web Pages
__GROUP_MIN__-40 °C | max.: 70 °C
Counter_count400
Clock_includedClock Included
Memory_capacity8.5 KB
Voltage230
Number of timers400
Lower_limit_text47 Hz
Supply voltage230
Upper_limit_text63 Hz
__COND_AC_RATED__115 V AC | 230 V AC; 240 V AC
__COND_DC_RATED__115 V DC | 230 V DC; 240 V DC
Expandability_textExpandable
Has_realtime_clockTrue
Digital_output_typeRelay
Switching current10

Product details

Module at a glance

The Siemens 6ED10521FB080BA2 is a LOGO! 8.4 logic module with 8 digital inputs and 4 relay outputs. It runs on 115 to 230 V AC or DC, includes a backlit LCD, and is fully expandable via the LOGO! bus. Relay outputs switch up to 10 A per contact, suitable for direct control of small contactors, solenoid valves, or indicator lamps within the rated range.

Mounting and footprint

Snaps onto DIN rail. Dimensions: 72.898 mm high, 81.026 mm wide, 59.944 mm deep. Works standalone or with expansion modules. The integrated web server serves user-defined pages over Ethernet.

Timers, counters, and data logging

400 software timers and 400 counters available in the 8.5 KB program memory. A real-time clock is included, along with a 480-hour capacitor-backed data buffer to retain program state and log data during power loss.

Confirmed fit for a BOM line calling for an 8-in/4-out logic module with 115–230 V supply, LCD interface, and expandability.

Frequently asked questions

What's the difference between 6ED10521FB080BA2 and 6ED1052-1FB08-0BA2?

They are identical products. The dash-separated format 6ED1052-1FB08-0BA2 is an alternate representation of the same Siemens order code.

MPN
6ED10521FB080BA2