Not an Authorized Distributor: DO Supply is not an authorized distributor for listed manufacturers or tradenames and therefore the manufacturer's warranty does not apply. All our products come with DO Supply's 2-year warranty.

Learn more

140G-N5H3-E12-Z1

Need a Specific Revision?

The 140G-N5H3-E12-Z1, a molded case circuit breaker from Allen-Bradley, is engineered for high-capacity applications. With a current rating of 1200 Amps, it features electronic LSI protection and boasts an interrupting capacity of 50 kA, ensuring reliable performance in demanding scenarios.

Call for an immediate quote

2 Year DO Supply Warranty

Available

Ships from Raleigh, NC

Learn more

Warranty

We sell industrial automation parts backed by our 2-year DO Supply Warranty.
Shipping

Same-day domestic and expedited international shipping with UPS, FedEx, DHL, and more.
Payment Methods

AMEX, Visa, MasterCard, Discover, wire transfer, and more, plus flexible payment plans.
Repairs & Exchanges

Repair and exchange services for all existing automation products.
Reseller Options

Drop shipping, blind shipping, and account shipping with no extra fees.

Technical specifications for 140G-N5H3-E12-Z1

Manufacturer	Rockwell Automation
Brand	Allen-Bradley
Part Number/Catalog No.	140G-N5H3-E12-Z1
Product Type	Molded Case Circuit Breaker
Frame	N
Amps	1200
Interrupting Rating	50 kA
Protection Type	Electronic LSI
Current Range	1200 A
Rated Insulation Voltage	1000 V
Rated Impulse Withstand Voltage	8 kV
Weight	21.39 lb
Mechanical Life	60 Operations/hr.
Electrical Life	60 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.

View as PDF

Request a Repair

The Allen-Bradley 140G-N5H3-E12-Z1 is a robust molded case circuit breaker designed to manage significant electrical loads effectively. Capable of handling 1200 Amps, this unit is ideal for high-energy applications. The electronic LSI protection type ensures that the system remains safeguarded against unexpected current spikes.

The interrupting rating stands at 50 kA, providing essential fault protection during critical operations. This breaker has an N frame, which facilitates compatibility in several settings.

In terms of insulation, it effectively manages rated voltages up to 1000 volts, vital for high-voltage applications. Additionally, its rated impulse withstand voltage is 8 kV, giving it the resilience to handle transient voltage spikes without failure.

Weighing in at 21.39 pounds, it is designed for ease of installation in industrial environments. This circuit breaker supports a mechanical life and electrical life of 60 operations per hour, ensuring consistent reliability over extended periods of use. Overall, the 140G-N5H3-E12-Z1 circuit breaker combines efficiency and durability to meet the needs of modern industrial systems.