🔹 Replacement Coil – Siemens 3TX74623HY1 (3TX Series)
The Siemens 3TX74623HY1 is a replacement coil module used in Siemens 3TX series contactor systems. It is designed to restore the electromagnetic operation of compatible contactors, ensuring reliable switching performance, proper pull-in and drop-out action, and long service life in industrial control applications.
This coil belongs to the Siemens 3TX7402/3TX7462 coil family, commonly used with Siemens 3TF / 3TH / 3TB / 3TC contactors depending on frame size and configuration. It is widely used in control panels, MCCs, and automation systems for maintenance and repair purposes.
From Siemens parts classification, “HY1” is a coil execution variant code, typically indicating a specific coil voltage range and suppression/insulation configuration used for stable operation and protection of the contactor coil in industrial environments. Similar 3TX7402-series variants are also used for surge suppression and coil protection modules in contactor assemblies.
🔹 Key Features
• Siemens 3TX Series replacement coil
• Model: 3TX74623HY1
• Used for Siemens 3TX / compatible 3TF / 3TH contactors
• Ensures reliable electromagnetic actuation
• Designed for industrial control panel applications
• High insulation strength and thermal stability
• Suitable for continuous duty operation
• Supports consistent pull-in and drop-out performance
• Helps extend contactor service life
• Easy replacement without full contactor replacement
| Parameter | Specification |
|---|---|
| Product Series | Siemens 3TX Series |
| Model Number | 3TX74623HY1 |
| Product Type | Replacement Coil |
| Function | Electromagnetic operation of contactor |
| Application | Siemens 3TX / selected 3TF / 3TH / 3TB / 3TC contactors |
| Coil Type | AC/DC (variant dependent) |
| Voltage Code | HY1 (coil execution variant) |
| Mounting Type | Internal replacement module |
| Usage | Industrial contactor maintenance & repair |
| Brand | Siemens |
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