140M-D8V-C32
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Overview of Allen Bradley 140M-D8V-C32
The Allen Bradley 140M-D8V-C32 is a member of the reliable 140M series of motor protection circuit breakers, trusted for delivering robust protection and control for industrial motor applications. This model is specifically engineered to combine the functions of a manual motor starter, circuit protector, and isolation device in a single unit. Designed for three-phase AC motor circuits, the 140M-D8V-C32 offers both thermal overload and short-circuit (magnetic) protection, ensuring motors are safeguarded against potential electrical faults. Its D-Frame construction provides a higher current rating and is suitable for demanding industrial environments. With straightforward mounting and adjustment, the 140M-D8V-C32 helps simplify motor circuit design while maintaining compliance with global standards. Applications range from machinery and conveyor systems to pumps and fans, making it a versatile choice for plant engineers and system integrators.
Key Features of Allen Bradley 140M-D8V-C32
- Thermomagnetic trip mechanism for reliable overload and short-circuit protection
- Rated operational current of 32 A, suitable for mid-size motor loads
- Manual switching and isolation in one compact device
- Designed for direct mounting on load side of variable frequency drives in multi-motor installations
- D-Frame construction for robust performance and durability
- Easy-to-adjust current settings for fine-tuned motor protection
- Meets international safety and performance standards
- IP20 finger-safe terminal covers for added operator safety
- Optional auxiliary contacts for integration into control systems
- Ideal for both OEM and retrofit applications
Technical Specs of Allen Bradley 140M-D8V-C32
| Specification | Value |
|---|---|
| Rated Operational Current (Ie) | 32 A |
| Motor Current Adjustment Range | 27–32 A (typ. for D-Frame) |
| Magnetic Trip Current | Typical: 14x rated current (448 A) |
| Max. Short Circuit Current (Icu) | Up to 100 kA @ 400/415V AC |
| Number of Poles | 3 |
| Switch-off Technique | Thermomagnetic |
| Frame | D |
| Standards | UL, cULus, CE |
Applications / Use Case
The Allen Bradley 140M-D8V-C32 is widely used in industrial settings for protecting and controlling three-phase motors up to 32 A. It is especially effective in applications where space, reliability, and ease of installation are priorities. The D-Frame design supports demanding environments, including heavy machinery, ventilation systems, water treatment plants, and conveyor lines. This model can also be installed at the output of variable frequency drives for multi-motor applications, offering both isolation and protection in a single device. By combining manual control and circuit protection, the 140M-D8V-C32 reduces panel footprint, minimizes wiring, and streamlines maintenance. Its flexibility makes it a preferred choice for system integrators, OEMs, and plant maintenance teams seeking reliable motor circuit solutions.
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