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140G-H3C3-C40

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The 140G-H3C3-C40 molded case circuit breaker is an Allen-Bradley/Rockwell Automation molded case circuit breaker from the Bulletin 140G series. It is manufactured as a thermal/magnetic type of circuit breaker that supports fixed thermal and magnetic trip ratings for protecting control panels and other industrial devices. The thermal trip rating of the 140G-H3C3-C40 molded case circuit breaker is 40 Amps and the magnetic trip rating is 400 Amps. If it needs additional protection from dust and moisture, this circuit breaker can be installed in a cabinet. The 140G-H3C3-C40 molded case circuit breaker operates at an 80% continuous load.

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Technical specifications for 140G-H3C3-C40

Manufacturer	Eaton Cutler-Hammer
Brand	Eaton Cutler-Hammer
Part Number/Catalog No.	140G-H3C3-C40
Product Type	Molded Case Circuit Breaker
Frame	H
Amps	125
Interrupting Rating	35 kA
Protection Type	Fixed Thermal/ Fixed Magnetic
Current Range	40 A
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.

Rockwell Disclaimer: The product is used surplus. DO Supply is not an authorized surplus dealer or affiliate for the Manufacturer of this product. The product may have older date codes or be an older series than that available direct from the factory or authorized dealers. Because DO Supply is not an authorized distributor of this product, the Original Manufacturer's warranty does not apply. While many Allen-Bradley PLC products will have firmware already installed, DO Supply makes no representation as to whether a PLC product will or will not have firmware and, if it does have firmware, whether the firmware is the revision level that you need for your application. DO Supply also makes no representations as to your ability or right to download or otherwise obtain firmware for the product from Rockwell, its distributors, or any other source. DO Supply also makes no representations as to your right to install any such firmware on the product. DO Supply will not obtain or supply firmware on your behalf. It is your obligation to comply with the terms of any End-User License Agreement or similar document related to obtaining or installing firmware.

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The 140G-H3C3-C40 circuit breaker is a 40 Amps rated circuit breaker from the Allen-Bradley 140G series. The breaker has a 25,000-hour mechanical life and an 8000-hour electrical life. The 140G-H3C3-C40 circuit breaker is a molded case circuit breaker. The number of poles on the breaker is 3. It has a 35 kiloamps interrupting rating at 480 Volts AC, a 100 kiloamps interrupting rating at 240 Volts AC, and an 18 kiloamps interrupting rating at 600 Volts AC. The breaking capacity for the 140G-H3C3-C40 circuit breaker at 50 to 60 Hertz according to the IEC 60947-2 standards is 85 kiloamps at 220 Volts AC, 50 kiloamps at 415 Volts AC, 50 kiloamps at 440 Volts AC, and 12 kiloamps at 690 Volts AC. For DC voltages, the breaking capacity for the 140G-H3C3-C40 circuit breaker according to the IEC 60947-2 standards is 50 kiloamps at 250 to 500 Volts DC.

The trip unit on the 140G-H3C3-C40 circuit breaker is a thermal/magnetic unit which is non-adjustable. The breaker rating for the thermal trip is 50 Amps, and for the magnetic trip, it is 400 Amps. The dimensions of the H Frame 140G-H3C3-C40 circuit breaker are 130 x 90 x 82 millimeters. The weight of the breaker is approximately 2.65 pounds. The copper wire used with the breaker should have a temperature rating of at least 167 degrees Fahrenheit. When not in use, the 140G-H3C3-C40 circuit breaker should be kept in storage where the ambient temperature is between -40 and 176 degrees Fahrenheit. The maximum ambient operating temperature for the 140G-H3C3-C40 circuit breaker which does not lead to derating is 104 degrees Fahrenheit. The 140G-H3C3-C40 circuit breaker should only be installed when the system electrical power is disconnected.