🔹 Auxiliary Contactor Relay – Siemens 3TH30220AF0 (3TH Series)
The Siemens 3TH30220AF0 is an auxiliary contactor relay from the 3TH series, designed for control, signaling, and interlocking functions in industrial electrical systems. It is used in control panels and automation systems to extend the number of auxiliary contacts of main contactors and to manage control circuits efficiently.
This relay is ideal for low-power switching applications in PLC-based systems, MCC panels, and machine control circuits. It ensures reliable signal transmission and long operational life in continuous industrial use.
🔹 Key Features
• Siemens 3TH Series auxiliary contactor relay
• Model: 3TH30220AF0
• Designed for control and signaling applications
• Used for interlocking and logic control in panels
• High electrical and mechanical endurance
• Compact and space-saving modular design
• Suitable for PLC and automation systems
• Reliable low-power switching performance
• Easy panel mounting installation
• Compatible with industrial control circuits
• Shock and vibration resistant design
• Long service life with minimal maintenance
• Safe and stable operation in control systems
• Suitable for MCC and distribution panels
| Parameter | Specification |
|---|---|
| Product Series | Siemens 3TH Auxiliary Contactor Relay |
| Model Number | 3TH30220AF0 |
| Product Type | Auxiliary Contactor Relay |
| Function | Control / Signal Switching / Interlocking |
| Contact Configuration | 2NO + 2NC (typical AF0 variant) |
| Coil Voltage | As per AF0 variant (refer datasheet) |
| Mounting Type | Panel Mounting |
| Application | Control panels, PLC systems, MCC panels |
| Brand | Siemens |
| Duty Type | Control / Auxiliary Switching |
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