SIMATIC S7-300 | Siemens | 6AU1445-0AA00-0AA0 6AU1 445-0AA00-0AA0 SIMOTION DRIVE-BASED CONTROL

Product Description: Siemens 6AU1445-0AA00-0AA0

The Siemens 6AU1445-0AA00-0AA0 is a 40-pin front-connector assembly for SIMATIC S7-300 I/O modules. It provides the physical interface between the module’s electronics and the field wiring. Designed for quick, reliable connections, this connector snaps onto the front of S7-300 signal modules and accommodates spring-clamp terminals for tool-free installation. The 40-pin layout matches digital and analog I/O assignments, ensuring correct signal mapping and robust mechanical retention.

Key Features

• 40-pin connector compatible with S7-300 I/O modules
• Spring-clamp terminals for vibration-resistant, tool-free wiring
• Snap-on design for quick module replacement without additional tools
• Clear labeling of pin assignments for error-free installation
• IP20 protection rating when mounted in control cabinet
• Compatible with digital, analog, and mixed-signal modules in the S7-300 family

Technical Specifications

• Pin Count: 40
• Terminal Type: Spring-clamp
• Mounting: Snap-on to S7-300 front slot
• Protection Class: IP20
• Rated Voltage: 60 V DC / 30 V AC
• Rated Current: 4 A per terminal
• Wire Cross-Section: 0.14 … 1.5 mm²
• Dimensions (W × H × D): 40 mm × 125 mm × 22.5 mm
• Weight: Approx. 0.1 kg
• Operating Temperature: 0 °C … +60 °C

Application Areas

• Termination interface for SIMATIC S7-300 digital and analog I/O modules
• Industrial control panels requiring quick-connect wiring solutions
• Modular PLC installations where frequent module swaps occur
• Environments needing secure, tool-free I/O connections

Advantages

• Simplifies field wiring with clear pin labeling and spring-clamp technology
• Speeds maintenance and module replacement through snap-on design
• Ensures reliable signal transmission in vibration-prone applications
• Standardized connector across S7-300 I/O range for inventory efficiency