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Allen-Bradley 140MT-C3E-B40 Motor Protection Circuit Breaker

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Allen-Bradley 140MT-C3E-B40

by Allen-Bradley

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OverviewThe Allen-Bradley 140MT-C3E-B40 is a high-performance Motor Protection Circuit Breaker (MPCB) crafted to shield industrial motors from detrimental overloads and short circuits. This essential component delivers extensive protection, prolonging motor lifespan and significantly reducing expensive downtime. Featuring an adjustable thermal current range and an efficient magnetic trip system, the 140MT-C3E-B40 ensures precise control and rapid fault response, making it invaluable in demanding industrial environments. Its compact construction, combined with straightforward DIN rail mounting, facilitates easy integration into existing control panels, boosting both safety and operational efficiency.Key Features Adjustable Thermal Current Range (2.5-4A): Provides exceptional flexibility to fine-tune motor safeguarding for a diverse array of uses, optimizing performance and preventing premature wear. Instantaneous Magnetic Trip (14 x Ie): Offers immediate short-circuit protection, swiftly cutting power to avert potential harm to motors and electrical systems. Designed for 480V AC, 60Hz Systems: Guarantees seamless compatibility and dependable operation within common industrial power grids, ensuring consistent and secure performance. Robust Standard Breaking Capacity: Ensures safe and reliable interruption of fault currents, even in challenging conditions, preserving system integrity and operator safety. Compact Frame Size C: Maximizes control panel space efficiency without compromising durability or protective capabilities, ideal for installations where space is at a premium. Effortless DIN Rail Mounting: Enables quick and secure installation, substantially reducing setup time and labor costs for integrators and maintenance staff. High-Durability Construction: Fabricated to endure the rigors of industrial settings, providing long-term reliability and diminishing the need for frequent replacements. Technical Specifications Model: 140MT-C3E-B40 Type: Motor Protection Circuit Breaker (MPCB) Thermal Current Range: 2.5 - 4A (Adjustable) Magnetic Trip: Fixed at 14 x Ie Supply Voltage: 480V AC, 60Hz Breaking Capacity: Standard Frame Size: C Mounting: DIN Rail Application: Industrial motor protection Applications Comprehensive Motor Protection: Defends various industrial motors from damaging overloads and short-circuit conditions, extending their operational life. Industrial Automation Systems: Integrates smoothly into automated production lines and processes, ensuring reliable and safe operation of motor-driven equipment. Manufacturing & Processing Facilities: Offers vital circuit protection in heavy-duty industrial settings, crucial for maintaining continuous production and preventing equipment failure. HVAC Systems: Delivers strong protection for motors in heating, ventilation, and air conditioning units, enhancing system reliability and energy efficiency. Pumping Stations and Water Treatment: Guarantees the dependable functioning of pumps and associated equipment, critical for infrastructure and utilities. Control Panel Integration: An excellent choice for improving safety and operational efficiency within electrical control panels across diverse industrial sectors. Why Choose the Allen-Bradley 140MT-C3E-B40?The Allen-Bradley 140MT-C3E-B40 stands out as a superior selection for industrial motor protection due to its meticulous engineering and practical design advantages. Its adjustable thermal settings provide unmatched precision, allowing operators to customize protection to specific motor characteristics and application requirements, thereby preventing unnecessary interruptions and maximizing uptime. Furthermore, the integration of a standard magnetic trip ensures immediate and decisive action against short circuits, a critical attribute for preventing extensive damage and maintaining operational safety.Order NowElevate your industrial motor protection. Contact Palm Parts Solution today to place your order for the Allen-Bradley 140MT-C3E-B40 and ensure the longevity and efficiency of your critical equipment.FAQQ: What is the primary function of the Allen-Bradley 140MT-C3E-B40?A: The main purpose of this device is to protect industrial motors from damage caused by electrical overloads and short circuits, thereby extending their operational life.Q: How does the adjustable thermal current range benefit my operations?A: The adjustable thermal current range allows fine-tuning of motor protection to match specific motor characteristics and application needs, which helps prevent nuisance tripping and improves overall uptime.Q: Is this MPCB difficult to install?A: No, the Allen-Bradley 140MT-C3E-B40 features effortless DIN rail mounting, facilitating quick and secure installation, which significantly reduces setup time and labor costs.Q: What industrial environments is this device suitable for?A: It is highly suitable for demanding industrial environments such as manufacturing and processing facilities, HVAC systems, pumping stations, water treatment plants, and within various industrial control panels, across diverse industrial sectors requiring robust motor protection.

🇺🇸 Ships from our Florida warehouse
1-Year PALM Parts Warranty
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$314.00
10 in stock

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PRODUCT DETAILS

Allen-Bradley 140MT-C3E-B40

Overview

This is a genuine Allen-Bradley component. PalmPartsSolution stocks it in new, refurbished, and surplus condition with tested warranty and same-day shipping on in-stock units.

Whether you are sourcing a like-for-like replacement for an existing installation, an emergency spare to keep a line running, or a qualified part for a new build, our team can confirm availability, revision, and lead time before you order.

Key Features

  • Genuine Allen-Bradley catalog part
  • Tested before shipment
  • Backed by PalmPartsSolution warranty
  • Cross-reference and revision assistance available
  • Compatible with the broader Allen-Bradley automation ecosystem

Compatibility

When ordering, match the full catalog/part number, hardware revision, and firmware revision called out by your Allen-Bradley equipment. Where applicable, confirm:

  • Input/output voltage and current rating
  • Communication protocol and network role
  • Mounting form factor and footprint
  • Operating temperature, humidity, and IP rating
  • Required certifications (UL, CE, ATEX, marine, etc.)

Not sure which revision you need? Send us the catalog number on the nameplate and we will confirm the correct match.

Replacement Information

Three ways to source this part through PalmPartsSolution:

  1. Exact replacement — same Allen-Bradley catalog number, new or refurbished, tested and warrantied
  2. Form-fit-function equivalent — alternate revision or build that drops in without code changes
  3. Engineered migration — current-generation Allen-Bradley platform with documented conversion notes

Contact our engineering team if you need help choosing between these tracks.

Technical Specifications

  • Model: 140MT-C3E-B40
  • Type: Motor Protection Circuit Breaker (MPCB)
  • Thermal Current Range: 2.5 - 4A (Adjustable)
  • Magnetic Trip: Fixed at 14 x Ie
  • Supply Voltage: 480V AC, 60Hz
  • Breaking Capacity: Standard
  • Frame Size: C
  • Mounting: DIN Rail
  • Application: Industrial motor protection

Applications

  • Comprehensive Motor Protection: Defends various industrial motors from damaging overloads and short-circuit conditions, extending their operational life.
  • Industrial Automation Systems: Integrates smoothly into automated production lines and processes, ensuring reliable and safe operation of motor-driven equipment.
  • Manufacturing & Processing Facilities: Offers vital circuit protection in heavy-duty industrial settings, crucial for maintaining continuous production and preventing equipment failure.
  • HVAC Systems: Delivers strong protection for motors in heating, ventilation, and air conditioning units, enhancing system reliability and energy efficiency.
  • Pumping Stations and Water Treatment: Guarantees the dependable functioning of pumps and associated equipment, critical for infrastructure and utilities.
  • Control Panel Integration: An excellent choice for improving safety and operational efficiency within electrical control panels across diverse industrial sectors.

Why Choose the 140MT-C3E-B40?

The Allen-Bradley 140MT-C3E-B40 stands out as a superior selection for industrial motor protection due to its meticulous engineering and practical design advantages. Its adjustable thermal settings provide unmatched precision, allowing operators to customize protection to specific motor characteristics and application requirements, thereby preventing unnecessary interruptions and maximizing uptime. Furthermore, the integration of a standard magnetic trip ensures immediate and decisive action against short circuits, a critical attribute for preventing extensive damage and maintaining operational safety.

Order Now

Elevate your industrial motor protection. Contact Palm Parts Solution today to place your order for the Allen-Bradley 140MT-C3E-B40 and ensure the longevity and efficiency of your critical equipment.

FAQ

Q: What is the primary function of the Allen-Bradley 140MT-C3E-B40?

A: The main purpose of this device is to protect industrial motors from damage caused by electrical overloads and short circuits, thereby extending their operational life.

Q: How does the adjustable thermal current range benefit my operations?

A: The adjustable thermal current range allows fine-tuning of motor protection to match specific motor characteristics and application needs, which helps prevent nuisance tripping and improves overall uptime.

Q: Is this MPCB difficult to install?

A: No, the Allen-Bradley 140MT-C3E-B40 features effortless DIN rail mounting, facilitating quick and secure installation, which significantly reduces setup time and labor costs.

Q: What industrial environments is this device suitable for?

A: It is highly suitable for demanding industrial environments such as manufacturing and processing facilities, HVAC systems, pumping stations, water treatment plants, and within various industrial control panels, across diverse industrial sectors requiring robust motor protection.

Availability & Shipping

  • In stock: 140MT-C3E-B40 ready for immediate dispatch from our Florida warehouse.
  • Free USA shipping: FedEx Priority (2–5 business days) and UPS Ground (3–5 business days). Expedited options available at checkout.
  • Worldwide delivery: FedEx International Priority (1–5 days), UPS International Priority (3–5 days), and USPS International (5–10 days) — rates calculated at checkout.
  • Bulk pricing: Volume discounts on request — contact our sales team for quantity quotes.
  • Buy with confidence: Every 140MT-C3E-B40 ships with a 1-Year PALM Parts warranty and a 30-day return window.
SUPPORT

Frequently Asked Questions — Allen-Bradley

Yes. Every 140MT-C3E-B40 we ship is sourced through trusted industrial channels and inspected before dispatch. PALM Parts Solution operates as an independent supplier, not an authorized distributor.

Machine down? We ship parts the same day.

New, surplus, and refurbished Allen-Bradley inventory in stock. Request a quote or speak directly with an automation specialist for emergency sourcing.

CUSTOMER REVIEWS

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PALM Parts Solution operates as an independent industrial automation supplier and is not an authorized distributor or affiliate of any listed manufacturer or brand name. Manufacturer trademarks and product names are used solely for identification purposes. Original manufacturer warranties do not apply. All products sold by PALM Parts are backed by our own 1-year warranty.

Product Condition & Firmware

All products are sold as new unless stated otherwise. Original manufacturer packaging may show signs of handling, storage, or shelf wear. Date codes and series may vary from current factory production. PALM Parts does not guarantee the presence, version, or compatibility of any firmware on PLC or automation products.

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