Siemens 6ES7392-1AM00-0AA0 SIMATIC S7-300 Front Connector 40-Pole Screw

The Siemens 6ES7392-1AM00-0AA0 is a 40-pole front connector for the SIMATIC S7-300 PLC system, providing screw-terminal I/O signal connections for S7-300 signal modules. Supplied as a designated spare part, it accepts solid and flexible conductors from 0.14 to 0.75 mm² and supports up to 2 cables per terminal when using a shared end sleeve, with a tightening torque of 0.4 to 0.7 N·m.

Technical specifications:

• MLFB: 6ES7392-1AM00-0AA0
• Manufacturer: Siemens
• Product line: SIMATIC S7-300
• Product type: Front connector
• Number of poles: 40
• Connection method: Screw terminals
• Cables per terminal: 1, or 2 cables up to 0.75 mm² (total) in a shared end sleeve
• Cable cross-section (solid): 0.14 to 0.75 mm²
• Cable cross-section (flexible, without end sleeve): 0.14 to 0.75 mm²
• Cable cross-section (flexible, with end sleeve): 0.14 to 0.75 mm²
• Conductor cross-section AWG: 24 to 19
• Stripped length: 6 mm
• End sleeve standard: DIN 46228 Design A (5-7 mm) or Design E (up to 6 mm)
• Installation tool: Conical screwdriver, 3 to 3.5 mm
• Tightening torque: 0.4 to 0.7 N·m
• Operating temperature: 0°C to 60°C
• Storage/transport temperature: -40°C to 70°C
• Dimensions (W x H x D): 21.6 x 125 x 40.9 mm
• Weight: approx. 137 g

Features and benefits:

• 40-pole terminal block enables high-density field wiring to S7-300 signal modules in a single connector
• Accepts 1 or 2 conductors per terminal - up to 0.75 mm² combined when using a shared end sleeve
• Compatible with DIN 46228 end sleeves, both Design A (5-7 mm) and Design E (up to 6 mm)
• Wide conductor range of 0.14 to 0.75 mm² (AWG 24-19) accommodates solid and flexible cables
• Designated spare part for direct replacement in existing SIMATIC S7-300 installations

Applications:

• Connecting field wiring to SIMATIC S7-300 digital or analog signal modules
• Spare part replacement in existing S7-300 PLC control cabinets
• New S7-300 panel builds requiring a 40-pole screw-type front connector
• Factory automation and process control systems based on the S7-300 platform

General product approval and environmental confirmations per Siemens documentation. Part of the Siemens SIMATIC S7-300 range.

Also known as: Siemens 6ES7392-1AM00-0AA0, 6ES73921AM000AA0, SIMATIC S7-300 40-pole front connector.