140MT-D9E-C25

Overview of Allen Bradley 140MT-D9E-C25

The Allen Bradley 140MT-D9E-C25 is a high-performance motor protection circuit breaker designed to safeguard industrial motors in demanding applications. This device offers both overload and short-circuit protection, featuring an adjustable thermal current range of 18–25A for matching a broad spectrum of motor ratings. Incorporating Trip Class 10 operation and high breaking capacity, the 140MT-D9E-C25 ensures safe, reliable protection during abnormal conditions and motor startups. Engineered with a sturdy D frame, it accommodates requirements for compact DIN rail installations and is factory assembled for rapid integration into control panels. With standard fixed magnetic trip set at 14 times the rated current (Ie), it responds quickly to faults while minimizing nuisance tripping. This breaker is widely used in diverse industrial settings, delivering dependable performance and helping reduce downtime.

Key Features of Allen Bradley 140MT-D9E-C25

• Motor protection circuit breaker, D frame
• Adjustable thermal current: 18–25A
• High breaking capacity for demanding fault scenarios
• Trip Class 10 for rapid overload response
• Magnetic trip fixed at 14 × Ie to protect against short circuits
• DIN rail mounting for easy installation
• Factory assembled with solid construction
• Compliant with IEC 60947 and UL/CSA standards

Technical Specs of 140MT-D9E-C25

• Rated operational current: 18–25A (adjustable)
• Frame size: D
• Breaking capacity: High
• Trip Class: 10
• Standard magnetic trip: Fixed at 14 × Ie
• Degree of protection: Housing IP20, terminals IP10
• Voltage compatibility: up to 480V 60Hz
• Mounting: DIN rail (EN 60715)
• Certifications: UL, CSA, IEC

Applications / Use Case

The Allen Bradley 140MT-D9E-C25 is suited for protecting motors in manufacturing, process automation, and machine building environments. It serves as a primary protection device in motor control centers, pump stations, HVAC equipment, and conveyor systems—where safeguarding motors against overloads and short circuits is essential for system reliability. The adjustable thermal setting allows it to accommodate various motor loads, making it flexible for OEMs and panel builders. Its fast trip characteristics help limit damage during faults, reducing maintenance costs and downtime. The compact DIN rail mount and comprehensive approvals support straightforward integration into many industrial control panels where both safety and compliance are priorities.

Related Resources

• LeadTime.ca – Industrial Automation Components & Repair Services
• View All Allen Bradley Products
• Allen Bradley 194E-SY Disconnect Switch – Load Protection
• Allen Bradley 1609-D600N UPS Backup Power Supply
• Examples of Industrial Automation and Control Systems