The 140MT-D9E-B63 is a high-performance Motor Protection Circuit Breaker from Allen-Bradley’s D-Frame series. It is specifically designed to provide comprehensive protection against both overloads and short circuits for motors in demanding industrial environments.
Core Specifications
- Amperage Rating: 6.3 Amps.
- Trip Range: Adjustable thermal protection from 4.0 to 6.3 Amps.
- Trip Type: Class 10 Adjustable Thermal and Fixed Magnetic (set at 14x rated current).
- Interrupt Rating: High-break capacity of 65–100 kAIC (depending on voltage).
- Voltage Rating: 480 VAC.
- Frame Size: D Frame (40 A).
Key Technical Features
- Dual-Function Protection: Combines an adjustable thermal trip for precise overload protection and a fixed magnetic trip for instantaneous response to short circuits.
- Versatile Power Ratings: Supports a wide range of motor sizes, including 1.5 kW @ 230V, 2.2 kW @ 400/415V, and up to 4 kW @ 690V.
- Extreme Environment Ready: Designed to operate reliably in a broad temperature range, from -25 to 70 °C.
- Compact & Efficient: Weighing only 0.845 lbs, it provides high-capacity interrupting performance in a space-saving footprint suitable for modern control panels.
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