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Siemens 6ES7921-3AF20-0AA0 SIMATIC TOP Connect Front Connector 40-Pole Spring Analog PLC Connection Module

% $-109.57
Siemens 6ES7921-3AF20-0AA0 SIMATIC TOP connect front connector module - 40-pole analog spring
Siemens 6ES7921-3AF20-0AA0 SIMATIC TOP connect front connector module - 40-pole analog spring

Siemens 6ES7921-3AF20-0AA0 SIMATIC TOP Connect Front Connector 40-Pole Spring Analog PLC Connection Module

Brand: Siemens
Reference No: 6ES7921-3AF20-0AA0
Catalog No: 6ES7921-3AF20-0AA0
Series: SIMATIC TOP connect
Tariff Code (HS): 85366990
Rated Current: 1 A
Rated Voltage: 24 V
Stock: 0
Delivery time: 10-15 business day(s)
Shipping Origin: Türkiye EXW
$109.57

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  • Description

The Siemens 6ES7921-3AF20-0AA0 is a SIMATIC TOP connect front connector module for S7-300 40-pin analog I/O modules. It routes signals through two 16-pole IDC cable connections and feeds power through spring clamp terminals rated 24 V DC, 1 A, with two L+ and two M terminals. It plugs directly into the analog module in place of the factory front connector.

Technical Specifications

SKU (Order No.) 6ES7921-3AF20-0AA0
Brand Siemens
Series SIMATIC TOP connect
EAN 4025515069829
Target System SIMATIC S7-300
Suitability For Use Analog I/O modules (40-pin)
Product Designation Front connector module
Rated Operating Voltage (DC) 24 V
Maximum Operating Voltage (DC) 60 V
Rated Current 1 A
Max. Continuous Current per Contact (DC) 1 A
Max. Total Current 4 A
Number of Poles (Front Connector) 40
Connecting Cable Connection Type Plug-in connection
Poles at 1st Interface 16 (IDC connector)
Number of Plug Contacts 4
Max. Wire Length 30 m
Number of Terminals 4 (2x L+, 2x M)
Power Supply Connection Type Spring clamp
Terminal Position At the top
Conductor Cross-Section, Flexible with Ferrule 0.25-0.75 mm²
Conductor Cross-Section, Stranded 0.25-1.5 mm²
Stripped Length 6 mm
Screwdriver Blade Width 3.5 mm
Overvoltage Category 2
Pollution Degree 2
Operating Temperature 0...60 °C
Storage Temperature -40...+70 °C
Mounting Type Direct mounting
Enclosure Color Black
Net Weight 0.075 kg
Country of Origin Poland

Certifications & Standards

  • cULus

Selection Notes

The 40-pole, two-cable layout serves analog modules with more channels than the 20-pole analog connector covers, so it is the pick when the target module's front side is the 40-pin type rather than the 20-pin one. Spring clamp terminals connect the L+/M supply wiring without a screwdriver, useful for faster cabinet builds; choose the screw-terminal version instead where a recorded 0.4-0.7 N·m torque is required on the supply connection.

Technical Details

Short Description
SIMATIC TOP connect 40-pole front connector, spring terminals, for S7-300 analog I/O modules, 24V DC.
Rated Current (Ampere)
1 A
Rated Voltage (VAC)
24 V
Mounting Type
Direct mounting
Catalog No
6ES7921-3AF20-0AA0
Standards
/ cULus approval
Delivery Date (Days)
10-15 days
Model Number
6ES7921-3AF20-0AA0
Tariff Code
85366990

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