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Allen Bradley Bulletin 140MG 140MG-H8E-D10

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140MG-H8E-D10

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The 140MG-H8E-D10 model functions as a motor protection circuit breaker designed by Allen Bradley. This device operates effectively at a rated permanent current of 100 A and a voltage of 220 V, and it is equipped with thermomagnetic switch-off technology.

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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.

Technical specifications for 140MG-H8E-D10

ManufacturerAllen Bradley
Product TypeMotor Protection Circuit Breaker
Product LineBulletin 140MG
Part Number140MG-H8E-D10
Weight1.69 lbs (0.77 kg)
GTIN00 885630441849
Rated Permanent Current100 A
Rated Operating Voltage220 V
Type of Electrical ConnectionScrew Connection
Rated Impulse Withstand Voltage8 kV
Rated Motor Current100 A
Number of Poles3 Poles
Switch Off TechniqueThermomagnetic
Control ElementToggle
Insulation VoltageRated 1000 V per IEC
IP ProtectionIP20
Mechanical Life Operations25000/h
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The Allen Bradley 140MG-H8E-D10 is designated as a motor protection circuit breaker, ideal for safeguarding motors in various applications. This unit operates at a rated permanent current capacity of 100 A, with a specified operating voltage of 220 V. The connection type is a screw connection, which provides a secure and stable electrical interface.

In terms of electrical resilience, it can withstand an impulse voltage of up to 8 kV, which aids in protecting against transient overvoltage conditions. This circuit breaker configuration consists of three poles, effectively managing three-phase motor systems. The thermomagnetic technique is used for the switch-off mechanism, providing both thermal and magnetic protection to the motor circuits.

Additionally, the control is facilitated by a toggle element for simplicity and ease of use. It complies with the insulation voltage standard, rated at 1000 V according to IEC specifications. The IP20 rating indicates that the breaker is protected against solid objects larger than 12.5 mm, making it suitable for indoor usage in controlled environments. The model also boasts a mechanical operational lifespan of 25,000 operations per hour, which signifies its capability to handle frequent cycles while maintaining performance.