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Allen Bradley 140M Circuit Breakers 140M-J8E-D25

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140M-J8E-D25

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The 140M-J8E-D25 from Allen Bradley is engineered for robust motor protection. This breaker accommodates a rated power of 132 kW and an operational current of 250 A, featuring adjustable thermal trip settings.

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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 140M-J8E-D25

ManufacturerAllen Bradley
Product TypeMotor Protection Circuit Breaker
Product Line140M Circuit Breakers
Part Number140M-J8E-D25
Weight6.25 lbs (2.83 kg)
Rated Power132 kW
Rated Operational Current250 A
Minimum Thermal Trip Setting100 A
Maximum Thermal Trip Setting250 A
Rated Magnetic Trip Current3500 A
Rated Ultimate Short-Circuit Breaking Capacity at 400VAC70 kA at 400VAC
IP ProtectionIP20
Rated Ultimate Short-Circuit Breaking Capacity at 415VAC70 kA at 415VAC
Rated Service Short-Circuit Breaking Capacity at 400V AC65 kA
Rated Service Short-Circuit Breaking Capacity at 415V AC65 kA at 415VAC
Installation Altitude1000 m
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The Allen Bradley 140M-J8E-D25 stands as a highly effective motor protection circuit breaker designed to safeguard motors in various applications. It operates at a rated power of 132 kW and is capable of managing an operational current of 250 A, making it suitable for substantial motor loads. Users can adjust the thermal trip settings between a minimum of 100 A and a maximum of 250 A, allowing for customized protection based on specific operational needs.

The breaker's rated magnetic trip current is 3500 A, providing reliable protection against immediate overload situations. Furthermore, it boasts an impressive rated ultimate short-circuit breaking capacity of 70 kA for both 400 VAC and 415 VAC, ensuring it can withstand significant fault conditions without failing. When considering service conditions, it maintains a short-circuit breaking capacity of 65 kA at both 400 VAC and 415 VAC, reinforcing its capability in critical applications.

Notably, this circuit breaker is rated with an IP20 protection level, indicating it is suitable for environments where minor dust ingress may occur but should be kept away from water splashes. Designed for use at installation altitudes of up to 1000 meters, the 140M-J8E-D25 can be effectively utilized in various industrial contexts, making it a versatile choice for motor protection.