Siemens 42V AC Magnet Coil for 3TF30-33, 3TF40-43 Contactors | 3TY7403-0AZ6

Product Description

🔹 Siemens Magnet Coil – 3TY7403-0AZ6 (42V AC, 3TF30–3TF43 Series)

The Siemens 3TY7403-0AZ6 is a 42V AC magnet coil for Siemens 3TF series contactors, designed to operate the contactor mechanism in industrial control circuits. It is used to energize the coil, creating a magnetic field that pulls in the armature and switches the main contacts ON or OFF reliably.

This coil is compatible with Siemens 3TF30–3TF33 and 3TF40–3TF43 contactors, as well as related Siemens 3TH / 3TB / 3TC series depending on frame size. It is commonly used in control panels, motor control centers (MCC), pumps, compressors, and automation systems where low-voltage control circuits are required for safer operation.

The 42V AC coil variant is generally used in industrial safety control systems to reduce risk of electric shock and is often selected in machine control circuits and older Siemens control architectures.

Based on Siemens 3TY7403 family patterns, this variant belongs to the same coil series used across multiple voltage classes (such as 24V, 110V, 230V, 415V, and 42V variants), all designed for the same contactor frame sizes but different control voltages.

🔹 Key Features

• Siemens 3TY Series magnet coil
• Model: 3TY7403-0AZ6
• Rated control voltage: 42V AC (50/60 Hz)
• Suitable for Siemens 3TF30–33 and 3TF40–43 contactors
• Compatible with related 3TH / 3TB / 3TC series contactors
• Designed for low-voltage industrial control safety
• Electromagnetic actuation for reliable switching
• High insulation strength and thermal stability
• Continuous duty operation capability
• Easy replacement for maintenance applications
• Used in MCCs, automation panels, and machine control circuits