Siemens 3TY1304-2J Series Resistor 2.5 kΩ, 100V-120V AC/DC Original Brand New

Overview

The Siemens 3TY1304-2J is a crucial series resistor component, engineered for reliable performance in a wide range of industrial control applications. This resistor has a value of 2.5 kilo-ohms (kΩ) and is specifically designed to be used in conjunction with Siemens contactor coils, particularly in systems operating on a control voltage of 100-120V AC/DC.

By limiting the inrush current and ensuring the holding current is maintained at the correct level, the 3TY1304-2J plays a vital role in protecting your equipment and extending the lifespan of your contactors. Its compact design and robust construction make it an ideal choice for new installations or as a replacement part in existing control panels.

Key Features & Benefit

• Optimal Performance: Precisely engineered to provide a resistance of 2.5 kΩ, ensuring the correct current flow to your contactor coils.
• Contactor Compatibility: Perfectly suited for a variety of Siemens contactor models, simplifying the selection and installation process.
• Enhanced Equipment Protection: Protects contactor coils from overheating and premature failure by regulating current.
• Extended Lifespan: By controlling inrush current, it helps prolong the operational life of connected components.
• Voltage Versatility: Suitable for both 100V-120V AC and DC control circuits, offering flexibility in application.
• Durable Construction: Built with high-quality materials to withstand demanding industrial environments.
• Easy Installation: Designed for straightforward mounting and connection in control cabinets.

Function & Application

The primary function of the Siemens 3TY1304-2J series resistor is to limit the current flowing through a contactor’s electromagnet coil. When a contactor is energized, there is a momentary surge of current (inrush current) that is significantly higher than the steady-state holding current. This resistor is placed in series with the coil to manage this current.

• Inrush Current Limitation: The resistor reduces the initial high current, which prevents the coil from drawing excessive power and potentially overheating or causing a voltage dip in the control circuit.
• Holding Current Regulation: Once the contactor has pulled in, the resistor continues to limit the current to the specified holding level. This reduces power consumption and heat generation, which is crucial for the longevity of the coil.

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