🔹 Auxiliary Contact Block – Siemens 3TX40014A (3TX Series)
The Siemens 3TX40014A is an auxiliary contact block from the 3TX series, designed to be mounted on Siemens contactors to provide additional control and feedback contacts. It is used in industrial control circuits, PLC systems, and automation panels to extend the number of auxiliary contacts for signaling, interlocking, and status indication.
This accessory provides additional NC (normally closed) contact functionality with extended contact design, allowing reliable signal feedback for control logic and safety monitoring in industrial systems.
🔹 Key Features
• Siemens 3TX Series auxiliary contact block
• Model: 3TX40014A
• Plug-in / snap-on mounting on contactors
• Auxiliary contact type: 1 NC with extended contacts (PLC Direct)
• Used for control circuit feedback and interlocking
• Suitable for PLC input and status indication systems
• Compact modular design for easy installation
• High electrical endurance for low-current control circuits
• Reliable switching performance in automation systems
• Compatible with Siemens contactor platforms
• Used for monitoring contactor ON/OFF state via auxiliary feedback
| Parameter | Specification |
|---|---|
| Product Series | Siemens 3TX Series |
| Model Number | 3TX40014A |
| Product Type | Auxiliary Contact Block |
| Contact Type | 1 NC (extended contacts) |
| Mounting Type | Snap-on / plug-in on contactor |
| Application | Control circuits, PLC feedback, interlocking |
| Rated Current | Low-current control duty (AC-15 category typical) |
| Usage | Industrial automation & control systems |
| Brand | Siemens |
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