140M-C2E-B16 | Allen-Bradley | 140M Motor Protection Circuit Breaker

Product Overview

The Allen-Bradley 140M-C2E-B16 acts as a dedicated Frame C motor protection circuit breaker within modern motor control centers. This device combines individual branch circuit disconnection, magnetic short-circuit protection, and adjustable thermal overload diagnostics inside a single compact housing. It defends low-power industrial motors against thermal overloads and short-circuit faults, minimizing localized panel equipment damage.

Technical Specifications

Engineering Advantages

• Enables Fine-Tuned Thermal Calibration: An integrated front dial adjusts the thermal trip settings continuously between 1.0 and 1.6 A. This precision dial allows engineers to match the breaker exactly to the motor's nameplate Full Load Amps (FLA), preventing nuisance trips caused by minor operational fluctuations.

• Consolidates Enclosure Space: By integrating short-circuit and thermal protection into a single Frame C package, this unit eliminates the need for separate fuses and thermal overload relays. This consolidation frees up critical real estate inside cramped multi-starter control enclosures.

• Simplifies Fast Rail Installation: The housing snaps directly onto standard 35mm DIN rails without requiring specialized mounting plates or drilling tools. This design cuts panel assembly time and speeds up field upgrades.

• Suppresses High-Energy Short Circuits: The fixed magnetic trip response interrupts hazardous short circuits instantly up to the maximum breaking threshold, isolating the downstream fault before it compromises the upstream distribution bus.

FAQs

• Do you supply this circuit breaker in original factory condition?

  Yes. We guarantee this 140M-C2E-B16 circuit breaker arrives in 100% brand new, original manufacturer packaging with unaltered factory seals.

• How do I configure the current setting during installation?

  Locate the adjustable dial on the front face of the Frame C housing. Use a standard flathead screwdriver to turn the dial until the pointer aligns with the exact Full Load Amps (FLA) rating indicated on your motor's nameplate.

• What is the difference between the thermal and magnetic protection elements on this model?

  The adjustable thermal element protects the motor against sustained, low-level overcurrent conditions that cause overheating over time. The fixed magnetic element acts instantaneously to cut power during catastrophic high-current short circuits.