74101-075-53 Allen-Bradley

74101-075-53 Allen-Bradley I / O module

Product  Description：

The 74101-075-53 is an electromagnetic coil assembly. Its primary function is to convert electrical energy into a magnetic field that moves the contactor's armature, thereby switching the connected load on or off. This specific part number represents an OEM (Original Equipment Manufacturer) component from Rockwell Automation, ensuring exact fitment and performance standards for heavy-duty industrial switching applications. It is built with high-quality copper windings and specialized insulation to handle the thermal and electrical stresses common in motor control centers.

Product Parameters

The electrical characteristics of this coil are specific to the control circuit requirements of the host contactor. While parameters can vary slightly based on the series revision, the standard specifications for this unit include a rated control voltage of $120 \text{ VAC}$ at $60 \text{ Hz}$ or $110 \text{ VAC}$ at $50 \text{ Hz}$. It is designed for intermittent or continuous duty depending on the contactor housing. The physical dimensions are precisely engineered to fit within the magnet frame of Allen-Bradley size 3 or size 4 contactors (depending on the specific frame configuration). It features standard lead wire or screw terminal connections for integration into the control circuit.

Product Advantages

The primary advantage of using the 74101-075-53 is its OEM reliability. Because it is a genuine Allen-Bradley part, it maintains the UL and CSA certifications of the overall contactor assembly. The coil is vacuum-impregnated with epoxy or specialized varnish, which provides superior resistance to moisture, vibration, and thermal cycling. This construction prevents internal short circuits and extends the service life of the contactor. Additionally, the precise winding count ensures that the pick-up and seal-in voltages remain within the manufacturer's specified limits, preventing contact chatter which can damage expensive motor loads.

Important Considerations and Precautions

Before installation, it is vital to verify that the control voltage of your system matches the $120 \text{ VAC}$ rating of the coil; applying incorrect voltage can result in immediate coil burnout or failure to pull in the contacts. Always disconnect and lock out all power sources before attempting to replace a coil, as contactors often control high-voltage machinery. During replacement, ensure the magnet faces are clean and free of debris, as any obstruction can cause the coil to hum loudly and overheat. It is also recommended to check the contactor’s return springs and mechanical interlocks for wear while the unit is disassembled, as a mechanical bind can cause the new coil to draw excessive current and fail prematurely.

Product Applications

The 74101-075-53 is used in diverse industrial environments where large motors or heavy electrical loads must be switched. Typical applications include mining operations for controlling large conveyor belts, water treatment facilities for high-capacity pumps, and manufacturing plants for heavy-duty presses or fans. It is frequently found in "Across-the-Line" starters and reduced-voltage starters within Allen-Bradley Motor Control Centers (MCCs). Its robust design makes it suitable for harsh environments such as steel mills and chemical processing plants where reliability is non-negotiable.

The structure and details of the product：

Our services：

Shipping Port:  China

Payment: Bank of Chicago, Bank of Singapore

Express cooperation: fedex, DHL, UPS and your express account

Service: Professional Sales provides 24 hours /7 days online service

Warranty: one year

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