The Allen-Bradley 140-MN-0250 motor circuit breaker offers reliable short-circuit and thermal overload protection for three-phase motors, tailored with a current adjustment range between 1.6 Amps and 2.5 Amps, and a magnetic release up to 28 Amps. Designed for seamless integration, it mounts effortlessly on a DIN rail with a straightforward snap-on installation. Featuring a visible trip indicator and a stop/reset button, this Series D circuit breaker is suitable for both single-phase and three-phase applications, boasting a voltage rating of 600 Volts AC and conforming to CE, IEC 947, and EN 60947 standards. This compact device operates efficiently across diverse environments, supporting temperatures from -20 to 60 degrees Celsius and altitudes up to 2000 meters, ensuring optimal protection with a tripping current specification of 120% of the Full Load Current and Class 10 Trip protection rating.
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Technical specifications for 140-MN-0250
| Brand | Allen-Bradley / Rockwell Automation |
|---|---|
| Series | Miscellaneous Allen Bradley |
| Manufacturer | Rockwell Automation |
| Part Number/Catalog No. | 140-MN-0250 |
| Part Number | 140-MN-0250 |
| Brand | Allen-Bradley |
| Series | Bulletin 140 / KTA Circuit Breaker |
| Description | Molded Case Circuit Breaker |
| Series | 140-M |
| Voltage rating | 690 VAC |
| Voltage | 600 Volts AC |
| Applicable Motor Type | Slip-ring / Squirrel cage motors |
| Single Phase Operation | Supported |
| Frequency | 50/60 Hertz |
| Input voltage phase | 3-Phase |
| Adjustable Trip range | 1.6 A - 2.5 A |
| Operating Current | 28 A |
| Magnetic release | 28 A |
| Current | 28 Amperes |
| Switching motor ratings @ 50 Hz | 0.37 kW @ 230 VAC; 0.55 / 0.75 kW @ 400 VAC; 1.5 kW @ 690 VAC |
| Applicable wire size | # 16 thru 10 AWG |
| Protection | Class 10 |
| Switching motor ratings @ 60 Hz | 0.5 Hp @ 230 VAC; 1 Hp @ 460 VAC; 1.5 Hp @ 575 VAC |
| Wire type | Solid Copper wire |
| Dimension | 7 x 6 x 7 inches |
| Thermal release adjustment | 1.6 A - 2.5 A |
| Wire Insulation rating | 75 Degree Celsius |
| Tripping current rating | 120% FLA |
| Short Circuit rating (400 / 415 VAC) | 100 kA |
| Tightening Torque | 20-26 lb-in |
| UPC | 10662468198582 |
| Installation | DIN Rail |
| Trip Indicator | Installed |
| Test Mode | via Slide-on switch |
| Reset / Stop button | Installed |
| Embedded buttons | Start; Stop / Reset |
| Mounting | DIN Rail |
| Auxiliary contact | One (1) Normally Open (N.O.) contact |
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