3TX7402-3L
The Siemens SIRIUS 3TX7402-3L is a varistor-type surge suppressor with a rated voltage of 400-600VAC. It can be directly installed on the coil terminals of S0-S2 size contactors to absorb induced surges during power failure, extending the life of contacts and surrounding electronic components.
Product Positioning
The 3TX7402-3L is a varistor surge suppressor specifically designed for Siemens SIRIUS series contactors. Installed at the coil terminals, it absorbs high-voltage surges generated during power outages and is suitable for control circuits with a voltage range of 400-600VAC.
Core Product Advantages and Features
Varistors absorb surges
The induced voltage generated at the moment the coil is de-energized is quickly absorbed by the varistor element, reducing the impact on surrounding control components.
Applicable to high voltage range
Rated voltage ranges from 400-600VAC, suitable for contactor coil circuits with higher voltage levels.
Direct mounting of coil terminals
Includes a cable spacer, which can be directly snapped onto the coil terminals of S0-S2 size SIRIUS contactors, requiring no additional wiring space.
Extend equipment lifespan
Reduce surge damage to PLC outputs, relay contacts, and other peripheral electronic components.
Recommend
Read More
3TX7402-3R
The Siemens 3TX7402-3R surge suppressor uses an RC element design and is directly mounted on the contactor coil terminal. It is suitable for AC24-48V/DC24-70V low-voltage coils and can be used with 3TF40-45, 3TH3, 3TH4, 3TC44 and other series.
Read More
3TX7402-3K
The Siemens SIRIUS 3TX7402-3K varistor surge suppressor, rated at 240-400VAC, is installed at the contactor coil terminal with a cable spacer. It is suitable for S0-S2 size contactors and reduces the impact of surges on the control circuit.
Read More
3TX7402-3J
Siemens SIRIUS 3TX7402-3J varistor surge suppressor, rated voltage AC127-240V/DC150-250V, is installed at the coil terminals of S0-S2 size contactors, with cable spacers, to absorb surge voltage during power outages.