6ES7921-5AH20-0AA0

6ES7921-5AH20-0AA0

Front connector module with 4x16 pole IDC connector for digital 32 I/O modules of the S7-1500 Potential supply over Push-in terminal.

Product category
Front connectors
Manufacturer
SIEMENS
Product series
S7-1500
Technical Product Detail Pagehttps://i.siemens.com/1P6ES7921-5AH20-0AA0
target systemSIMATIC S7-1500
suitability for useDigital I/O modules
product brand nameSIMATIC Top connect
product type designationFully modular connection
product designationFront connector module
electrical data / header
operating voltage / at DC
rated value24 V
maximum60 V
current / rated value1 A
continuous current / at DC / per plug-in contact / maximum1 A
total current / maximum2 A; for mounting position horizontal
connection method
number of poles40; of the front connector
Product component / with shieldNo
type of electrical connection / for connecting cablePlug-in connection
number of poles / at the 1st interface16; the IDC connector for the connection cable
number of the plug contacts / of the electrical connection4
wire length / maximum30 m; between front connector module and terminal module
number of terminals8; 4 x 1 x L+, 4 x 1 x M
type of electrical connection / for power supplyPush-In terminal
position / of the terminalat the top
type of connectable conductor cross-sections / solidNo
connectable conductor cross-section
for flexible conductor / with core end processing0.25 ... 1.5 mm²; End sleeve according to DIN 46228/1 or DIN 46228/4 with plastic collar max. 0.75 mm2
stranded0.5 ... 1.5 mm²
finely stranded / without core end processing0.5 ... 1.5 mm²
finely stranded / with core end processing0.25 ... 1.5 mm²
type of wire end sleeve
with plastic sleeve / according to DIN 46228-4Length 8mm to 9mm
without plastic sleeve / according to DIN 46228-1Length 8mm to 9mm
number of cables / per connection2; Connection for internal system: Combination of 1 or 2 Wires until the sum total of cross sections be achieved in a ferrule.
stripped length8 mm
outer diameter / of the wire insulation3.1 mm; to the connection of the supply terminal
width of screwdriver blade3.5 mm
standards, specifications, approvals
certificate of suitability / cULus approvalYes
design tested acc. to type of protection / EEx eNo
overvoltage category2
degree of pollution2
ambient conditions
operating temperature0 ... 60 °C
ambient temperature
during operation0 ... 60 °C
during storage-40 ... +70
mechanical data
mounting typedirect mounting
color / of the enclosureblack
product feature / transparentNo
material / of the insulating bodyother
net weight0.099 kg
product component / required / end cover plateNo
further information / internet links
internet link
to website: Industry Mallhttps://mall.industry.siemens.com
to web page: selection aid TIA Selection Toolhttps://www.siemens.com/tstcloud
to web page: system cablinghttps://siemens.com/simatic-top-connect
to website: Industry Online Supporthttps://support.industry.siemens.com
additional information
manufacturer's article number / of device connector / usablereplacement for S7-1500 40 pole
other informationtechnical specifications apply to rated input voltage values and +25 °C ambient temperature (if not otherwise specified)
marketing textThe front connector module for SIMATIC S7-1500 with push-in terminals for potential feed to connect 16-pole cables represents a modified front connector for connection to a digital I/O module. This is plugged into the module to be wired instead of the front connector. Here the cables are plugged in and connected to the connection module.This modified front connector module is part of the fully modular connection of SIMATIC TOP connect for the fastest and safest system cabling. In addition to low wiring costs, error sources in cabling can be significantly reduced. Sensors and actuators from the peripherals are attached to the connection modules of SIMATIC TOP connect and linked to the SIMATIC S7-300 via connecting cable and front plug-in module.