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Siemens 6ES7921-5CB20-0AA0 SIMATIC TOP connect Front Connector S7-1500 32 I/O 50-Pole PLC Connection Module

% $-73.49
Siemens 6ES7921-5CB20-0AA0 front connector module S7-1500 digital I/O - 50-pole screw terminal
Siemens 6ES7921-5CB20-0AA0 front connector module S7-1500 digital I/O - 50-pole screw terminal

Siemens 6ES7921-5CB20-0AA0 SIMATIC TOP connect Front Connector S7-1500 32 I/O 50-Pole PLC Connection Module

Brand: Siemens
Reference No: 6ES7921-5CB20-0AA0
Catalog No: 6ES7921-5CB20-0AA0
Series: SIMATIC TOP connect
Tariff Code (HS): 85366990
Rated Current: 1
Rated Voltage: 24 V DC
Stock: 0
Delivery time: 10-15 business day(s)
Shipping Origin: Türkiye EXW
$73.49

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  • Description

The Siemens 6ES7921-5CB20-0AA0 is a SIMATIC TOP connect front connector module for digital 32-channel I/O modules on the S7-1500. It carries a single 50-pole IDC connector for the field cabling and feeds potential supply through 4 screw terminals, rated 24 V DC at up to 1 A per plug-in contact.

Technical Specifications

SKU 6ES7921-5CB20-0AA0
EAN 4047623602477
Brand Siemens
Series SIMATIC TOP connect
Target System SIMATIC S7-1500
Suitability Digital I/O modules
Product Designation Front connector module
Rated Operating Voltage (DC) 24 V
Maximum Operating Voltage (DC) 60 V
Max Continuous Current per Plug-In Contact (DC) 1 A
Max Total Current 2 A (horizontal mounting position)
Number of Poles (Front Connector) 40
Connecting Cable Interface Plug-in connection, 50-pole IDC connector
Number of Plug Contacts 1
Max Wire Length to Terminal Module 30 m
Number of Power Supply Terminals 4 (4 x L+)
Power Supply Connection Screw-type terminal, positioned at the top
Connectable Conductor Cross-Section 0.5-2.5 mm² stranded; 0.25-1.5 mm² with core end sleeve per DIN 46228
Stripped Length 10 mm
Wire Insulation Outer Diameter 3.1 mm
Screwdriver Blade Width 3.5 mm
Tightening Torque 0.4-0.7 N·m
Overvoltage Category 2
Degree of Pollution 2
Operating Temperature 0...60 °C
Storage Temperature -40...+70 °C
Mounting Type Direct mounting
Enclosure Color Black
Net Weight 0.099 kg

Certifications & Standards

  • cULus

Selection Notes

A single 50-pole IDC connector replaces the four 16-pole connectors used on the 6ES7921-5AB20-0AA0 for the same 32-channel digital I/O card, so this variant suits a one-cable connection to the terminal module instead of four separate cables. The 4 screw terminals are wired L+ only (no M return on this connector), sized for 0.5-2.5 mm² stranded conductor. Choose the 4x16-pole version instead when the downstream terminal module or existing cabling is built around four IDC cables rather than one 50-pole run.

Technical Details

Short Description
Siemens 6ES7921-5CB20-0AA0 front connector module, 1x50-pole IDC, screw terminals, for S7-1500 digital 32 I/O modules.
Rated Current (Ampere)
1
Rated Voltage (VAC)
24 V DC
Mounting Type
Direct Mount
Catalog No
6ES7921-5CB20-0AA0
Standards
/ cULus approval
Delivery Date (Days)
10-15 days
Model Number
6ES7921-5CB20-0AA0
Tariff Code
85366990

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