Auxiliary Contactor Relay, 3TH Series, Variant AF0 - 3TH30400AF0

🔹 Auxiliary Contactor Relay – Siemens 3TH30400AF0 (3TH Series)
🔹 Product Description

The Siemens 3TH30400AF0 is an auxiliary contactor relay from the 3TH series, designed for control, signaling, and interlocking functions in industrial electrical systems. It is widely used in control panels and automation systems to extend auxiliary contact capacity of main contactors and ensure reliable operation of low-power control circuits.

This relay is suitable for PLC-based automation, MCC panels, and machine control applications where safe, efficient, and precise switching of control signals is required. It provides high durability, stable performance, and long operational life in continuous industrial environments.

🔹 Key Features

• Siemens 3TH Series auxiliary contactor relay
• Model: 3TH30400AF0
• Designed for control, signaling, and interlocking applications
• Used for extending auxiliary contact capacity of contactors
• High mechanical and electrical endurance
• Compact modular design for panel mounting
• Suitable for PLC and automation systems
• Reliable low-power switching performance
• Easy installation and maintenance-free operation
• Shock and vibration resistant construction
• Long service life under continuous duty
• Compatible with industrial control circuits
• Safe and stable operation in harsh environments
• Suitable for MCC and control distribution panels