
( Brand: Allen Bradley ), ( Manufacturer Part Number: 104M05NKD3 ), ( Part Type: Box )
The **Allen-Bradley 104M05NKD3** is a high-performance, compact motor starter designed for industrial automation applications, offering reliable protection and control for three-phase AC motors in demanding environments. Part of Rockwell Automation s robust **PowerFlex** series, this motor starter is engineered to deliver superior efficiency, durability, and ease of integration into PLC-based control systems. The unit features a **non-fused** design, making it ideal for applications where space is limited but performance is critical, such as conveyor systems, pumps, compressors, and other motor-driven machinery. Its **NEMA 1** enclosure provides basic protection against dust, dirt, and accidental contact, ensuring consistent operation in standard industrial settings. The starter incorporates a **solid-state contactor** with a **silicon-controlled rectifier (SCR)** or **thyristor-based** switching mechanism, enabling smooth, low-inrush current starting for motors up to **5 horsepower (3.7 kW)** at **208 240V AC, 60 Hz**, or **3.7 kW** at **380 480V AC, 50/60 Hz**, depending on the specific configuration. This design minimizes mechanical wear and extends the lifespan of both the motor and the starter itself.
One of the standout features of the **104M05NKD3** is its **compact, modular construction**, which allows for easy installation in tight spaces while maintaining high current-carrying capacity. The starter is equipped with a **thermal overload relay** that provides protection against motor overloads, short circuits, and phase imbalances, helping to prevent equipment damage and downtime. The overload relay is **adjustable**, allowing users to fine-tune protection settings based on motor specifications, ensuring optimal performance across varying load conditions. Additionally, the starter includes a **built-in auxiliary relay**, which can be used for signaling, interlocking, or additional control logic within the automation system. This auxiliary contact is rated for **120V AC/2A** and can be wired to a PLC or other control devices for seamless integration into larger control schemes.
For enhanced safety and operational flexibility, the **104M05NKD3** is compatible with **Allen-Bradley s PowerFlex software tools**, such as **RSLogix 5000** or **Studio 5000**, allowing engineers to program and monitor motor control sequences directly from a human-machine interface (HMI) or PLC. The starter s **digital communication capabilities** via **DeviceNet** or **EtherNet/IP** enable advanced diagnostics, remote monitoring, and predictive maintenance, reducing unplanned downtime. Its **low-profile design** and **quick-connect terminals** simplify wiring and installation, while the **self-diagnostic features** help quickly identify faults, such as overload conditions or contactor failures, through status LEDs or integrated fault codes. Whether deployed in a manufacturing plant, processing facility, or material handling system, this motor starter delivers a perfect balance of **reliability, efficiency, and ease of use**, making it a trusted component in modern industrial automation solutions.
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Call to use a shipping service other than the ones listed. All products are guaranteed to be working but may show signs of use. Part Number 104M05NKD3. Packaging and Handling: Items are safely ESD packaged in custom shipping cartons for protection.
ALLEN BRADLEY 104M05NKD3 / IN BOX MINIATURE CONTACTOR, REVERSING, 3 N.O. The product is used surplus.