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Siemens 3TX7402-3G Varistor Surge Suppressor

Siemens 3TX7402-3G Varistor Surge Suppressor for contactors S0-S2.

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ManufacturerSiemens

Part number3TX7402-3G

Type Varistor Surge Suppressor

Voltage Range 24-48 V AC

Voltage Range 24-70 V DC

For Contactor Sizes S0, S1, S2

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Varistor Protection Surge Suppression 24-48V AC / 24-70V DC Range Includes Cable Spacer Mounts to Contactor Coil Terminal Protects S0-S2 Contactors

Product description

The Siemens 3TX7402-3G is a varistor-based surge suppressor designed to protect control circuits from voltage spikes. It operates within a range of 24-48 V AC or 24-70 V DC, making it versatile for various power supply configurations. This suppressor includes a cable spacer and is specifically designed for mounting to the coil terminal of Siemens contactors in sizes S0 to S2.

This surge suppressor is crucial for extending the lifespan of contactor coils and preventing premature failure due to transient voltage events. It is commonly used in motor control applications, power distribution panels, and any system where inductive loads are switched.

Stanlo Automation, a proud veteran-owned business, offers this Siemens 3TX7402-3G surge suppressor as part of our extensive inventory of industrial automation surplus. We are committed to providing reliable components at competitive prices to keep your operations running smoothly.

Technical specifications

Type	Varistor Surge Suppressor
Voltage Range	24-48 V AC
Voltage Range	24-70 V DC
For Contactor Sizes	S0, S1, S2
Mounting	Coil Terminal

Common applications

Motor Control Panels

Industrial Control Systems

Power Distribution

Automation Systems

Machine Building

Compatible systems

Siemens 3TB44 Contactors Siemens 3TF44 Contactors Siemens S0-S2 Sizing

Also known as

Siemens 3TX7402 3TX7402 Suppressor Siemens Contactor Surge Protection

Replaces / compatible with

This surge suppressor is designed for use with Siemens contactors of sizes S0, S1, and S2. It replaces older surge suppression methods for coil terminals.

Technical note

Expert tip

Ensure the correct voltage rating is selected based on the specific contactor coil being protected to guarantee effective surge suppression.

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Frequently asked questions

What AC and DC voltage ranges does the Siemens 3TX7402-3G surge suppressor support?

The Siemens 3TX7402-3G surge suppressor is designed to protect against transients in both AC and DC circuits. It supports an operating range of 24-48 V AC and 24-70 V DC, providing versatile protection for your contactor coils.