The Allen-Bradley/Rockwell Automation 140G-H3X3 frame is an industrial circuit breaker frame. It has been designed and manufactured as part of the Allen-Bradley Bulletin 140G series and it is meant to function as a key component in Bulletin 140G series circuit breakers. The 140G-H3X3 circuit breaker frame is used to host a module that is known as a trip unit. The breaker frame and the trip unit together form a complete Allen-Bradley Bulletin 140G series molded case circuit breaker. The 140G-H3X3 circuit breaker frame supports 3 poles and 135 Amps of rated current.
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Manufacturer | Eaton Cutler-Hammer |
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Brand | Eaton Cutler-Hammer |
Part Number/Catalog No. | 140G-H3X3 |
Product Type | Molded Case Circuit Breaker |
Frame | H |
Amps | 125 |
Interrupting Rating | 35 kA |
Protection Type | Breaker Frame |
Current Range | Frame Only |
Rated Insulation Voltage | 1000 V |
Rated Impulse Withstand Voltage | 8 kV |
Weight | 2.65 lb |
Mechanical Life | 240 Operations/hr. |
Electrical Life | 120 Operations/ hr. |
The 140G-H3X3 circuit breaker is a 140G molded case circuit breaker manufactured by the Eaton Corporation. The 140G-H3X3 circuit breaker is classified under the Eaton 140G series of circuit breakers and it features a rated insulation voltage of 1000 Volts. The unit features the current range frame while the protection feature is a breaker frame. The molded case circuit breaker is operated by using electronics to detect the current flow and by modeling the associated heat generated by the current. The 140G-H3X3 circuit breaker comes with an interrupting rating of 35 kA at 480 Volts while the unit’s current rating is 125 Amps. The frame type or frame rating is “H,” and the current range is classified as “frame only.”
The 140G-H3X3 circuit breaker features a rated impulse withstand voltage of 8 kV while the unit features a mechanical lifespan of 240 operations per hour. The electrical life is 120 operations per hour. The 140G-H3X3 circuit breaker is designed to provide applications with overcurrent protection for the conductors and the equipment. Whenever the current passes the value and the duration that can cause dangerous temperatures in the conductor or its insulation, the circuit breaker opens or closes to protect the equipment. The molded case circuit breaker is used as the main power disconnecting means on the control panel. It provides protection from overcurrent as well as short currents. Electronic circuit breakers can adjust thermal trip ratings and shape the trip that is available and this leads to a few trip units that have the ability to protect the current range. In some instances, the rating plug can be used for limiting the adjustability range.
Revision Part # | Also known as | |
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140G-H3X3 Ser A | 140G-H3X3/A, Series A, Rev A | Request a quote |
Don't see your particular revision? Contact us now. |
The Allen-Bradley 140G-H3X3 Molded Case Circuit Breaker has a H Frame and 125 Amps. It also has a 35 kA Interrupting Rating and 3 Poles.