The Siemens 3TY74030AP0 is an AC contactor coil / magnet coil designed for compatible Siemens contactors and control devices, including 3TF30–3TF33, 3TF40–3TF43, 3TH3, 3TH4, 3TB40–3TB44, 3TC44 and 3TH8 series. It is specified for 230/220V AC at 50Hz and 276/264V AC at 60Hz and is a replacement for 3TY48030AP0. Siemens documentation confirms the 3TY7403-0AP0 reference and its application across these contactor families.
The coil provides the electromagnetic actuation required to operate the compatible contactor when the appropriate control voltage is applied. It is suitable for contactor replacement, maintenance and repair in industrial motor-control and electrical switching systems.
The Siemens 3TY74030AP0 contactor coil is suitable for:
The coil provides the electromagnetic force required to actuate compatible Siemens contactors.
It is specified for 230/220V AC at 50Hz and 276/264V AC at 60Hz.
The same coil reference is designed for multiple compatible Siemens contactor and control-device families.
The 3TY74030AP0 serves as a replacement for 3TY48030AP0, making it useful for servicing compatible legacy equipment.
Replacing a defective coil can help restore contactor operation without replacing the complete contactor, when the remaining components are serviceable.
The Siemens 3TY74030AP0 is a dedicated 230/220V AC replacement magnet coil for a broad range of Siemens 3T contactors and related control devices. It is suitable for OEMs, panel builders, electrical contractors and industrial maintenance teams.
Always verify the existing contactor model, coil part number, control voltage and frequency before installation.
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1. What is Siemens 3TY74030AP0?
The 3TY74030AP0 is a Siemens AC magnet coil/contactors coil for compatible 3T, 3TH, 3TB and 3TC series devices.
2. What is the coil voltage?
It is specified for 230/220V AC at 50Hz and 276/264V AC at 60Hz.
3. Which contactors are compatible?
The listed families include 3TF30–3TF33, 3TF40–3TF43, 3TH3, 3TH4, 3TB40–3TB44, 3TC44 and 3TH8.
4. What is the replacement reference?
The 3TY74030AP0 is specified as a replacement for 3TY48030AP0.
5. What should I check before ordering?
Verify the contactor model, existing coil reference, control voltage and frequency to confirm compatibility.
| Parameter | Specification |
|---|---|
| Product Series | Siemens 3TY Series |
| Model Number | 3TY7403-0AP0 |
| Product Type | Magnet Coil for Contactor |
| Rated Control Voltage | 230V AC (50Hz) / 277V AC (60Hz) |
| Compatible Contactors | 3TF30–33, 3TF40–43 |
| Application | Industrial motor control, switching systems |
| Coil Type | AC operated |
| Replacement For | 3TY4803-0AP0 |
| Mounting Type | Internal coil assembly |
| Brand | Siemens |
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