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Allen-Bradley 140GJTF3D25 MCCB J Frame Trip Unit

3P 250A Adjustable Thermal Magnetic

Product Overview

The Allen Bradley motor protection circuit breakers offer a reliable solution with both short-circuit and overload protection for individual motor loads with high interrupt ratings for 2 and 3 pole devices. Ideal for motor starting and motor protection applications. Connecting modules are available and have been combination short-circuit tested with the Allen Bradley 100-E contactors.

Image of the Allen-Bradley 140GJTF3D25 MCCB J Frame Trip Unit showing terminals and adjustment dials.

Electrical Specifications

Rated current In 250 A
Number of poles 3
Type of protection trip unit Thermal/magnetic release
Trip curve Adj. thermal, adj. magnetic
Frame size rating 250 A
Long time overload protection adjustment range 175-250 A
Instantaneous protection adjustment range 1250-2500 A
Rated frequency 50-60 Hz
Rated insulation voltage Ui 1000 V
Rated impulse withstand voltage Uimp 8 kV
Complete device with protection unit No

Dimensions

Width 105 mm

Environment

Rated surrounding temperature without derating 40 °C
Maximum operating temperature 75 °C
Storage temperature -40...80 °C
Max. altitude before derating 2000 m

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