140MG-J8P-D20
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Overview of Allen Bradley 140MG-J8P-D20
The Allen Bradley 140MG-J8P-D20 is a heavy-duty motor protection circuit protector designed for industrial automation environments. This J frame breaker features a magnetic-only trip unit, providing fast, reliable protection against damaging overcurrents in motor circuits. With a rated current of 200A and interrupting capacity of 35–65 kA at 480V, it is built to protect motors and equipment in demanding applications. The 140MG-J8P-D20 is a three-pole device compatible with standard three-phase power systems, supporting both 50Hz and 60Hz frequencies. Its robust design ensures long service life and dependable performance in industrial panels and motor control centers.
Key Features of Allen Bradley 140MG-J8P-D20
- J frame molded case construction for high current capacity
- Magnetic-only trip (MCP) for motor circuit protection
- Rated for 200A continuous current
- Interrupting rating of 35–65kA at 480V AC
- Available with optional auxiliary contacts and alarm modules
- Three-pole design for three-phase applications
Technical Specs of 140MG-J8P-D20
| Attribute | Specification |
|---|---|
| Frame Size | J |
| Poles | 3 |
| Current Rating | 200A |
| Voltage Rating | 480V AC |
| Interrupting Capacity | 35–65kA |
| Frequency | 50/60Hz |
| Mounting | Fixed |
| Auxiliary Contacts | Available (NO/NC + alarm) |
Applications / Use Case
The Allen Bradley 140MG-J8P-D20 is ideally suited for motor protection in industrial settings, including manufacturing, material handling, and processing facilities. Its magnetic-only trip characteristic makes it ideal for protecting large electric motors from short-circuit events, ensuring motors and connected equipment are shielded from electrical faults. The 140MG series is commonly used in motor control centers, industrial control panels, and power distribution systems where robust, rapid-response overcurrent protection is required. This circuit protector is also compatible with a variety of external accessories, allowing easy integration into complex automation systems. For facilities with frequent motor starts and variable loads, the 140MG-J8P-D20 provides reliable, low-maintenance protection.
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