Allen Bradley M2D040 - Miniature Circuit Breaker (MCB)

Introducing the Allen Bradley M2D040 Miniature Circuit Breaker (MCB) — a trusted protection solution engineered for demanding electrical systems. Designed for reliability, this MCB delivers dependable overcurrent protection where it matters most.

This miniature circuit breaker is suitable for use in panelboards, switchboards, control panels, and OEM equipment, making it a versatile choice for a wide range of installations. Whether you’re upgrading an existing distribution setup or designing a new system, the M2D040 provides safe, effective protection for critical circuits.

Key applications include industrial, commercial, and OEM environments where dependable overcurrent protection and safe operation are critical in distribution panels and motor control centers. The M2D040 helps prevent damage from faults, reduces the risk of downtime, and supports compliant, stable power delivery across your operations.

• Reliable overcurrent protection for branch circuits and essential feeders in distribution panels and motor control centers.
• Versatile installation compatible with panelboards, switchboards, control panels, and OEM equipment—ideal for diverse electrical layouts.
• Trusted Allen Bradley engineering backed by decades of protection expertise, designed to integrate smoothly into industrial and commercial systems.
• Operational safety contributes to safer equipment operation and streamlined maintenance by providing clear fault interruption and reset capabilities.

Whether you’re protecting critical machinery in a factory, safeguarding power distribution in a commercial facility, or outfitting OEM equipment with reliable safety interlock and trip behavior, the M2D040 Miniature Circuit Breaker from Allen Bradley is a precise, purpose-built choice. Equip your panels with a proven solution that prioritizes safety, reliability, and long-term performance.