🔹 Replacement Coil – Siemens 3TX74023SY2 (3TX Series)
The Siemens 3TX74023SY2 is a replacement coil / coil module used in Siemens 3TX series contactor systems. It is designed to restore the electromagnetic operation of compatible contactors, ensuring proper switching performance, reliable pull-in/drop-out action, and long service life in industrial control applications.
This coil is part of the Siemens 3TX7402 accessory/coil family, used across Siemens 3TF / 3TH / 3TC contactor ranges depending on frame size. It is widely used in industrial panels, MCCs, and automation systems for maintaining contactor functionality without replacing the complete unit.
In Siemens coil coding, “SY2” typically represents a specific coil execution variant (voltage class + suppression/configuration type depending on application family) used in control circuits for safe and stable operation.
From Siemens accessory classification, the 3TX7402 family includes coil protection and coil-related modules such as varistors, RC elements, and coil assemblies used for surge suppression and reliable coil energization.
🔹 Key Features
• Siemens 3TX Series replacement coil module
• Model: 3TX74023SY2
• 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 change
| Parameter | Specification |
|---|---|
| Product Series | Siemens 3TX Series |
| Model Number | 3TX74023SY2 |
| Product Type | Replacement Coil / Coil Assembly |
| Function | Electromagnetic operation of contactor |
| Application | Siemens 3TX / selected 3TF / 3TH contactors |
| Coil Type | AC/DC (variant dependent) |
| Voltage Code | SY2 (coil execution variant) |
| Mounting Type | Internal replacement module |
| Usage | Industrial contactor maintenance & repair |
| Brand | Siemens |
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