140M-D8E-C20 | Allen-Bradley Motor Protection Circuit Breaker, 14.5-20A
140M-D8E-C20 | Allen-Bradley Motor Protection Circuit Breaker, 14.5-20A
140M-D8E-C20 | Allen-Bradley Motor Protection Circuit Breaker, 14.5-20A
    140M-D8E-C20 | Allen-Bradley Motor Protection Circuit Breaker, 14.5-20A
140M-D8E-C20 | Allen-Bradley Motor Protection Circuit Breaker, 14.5-20A

140M-D8E-C20 | Allen-Bradley Motor Protection Circuit Breaker, 14.5-20A

Part #: 140M-D8E-C20 Manufactured by: Allen-Bradley
Regular price
$199.00
Sale price
$199.00
Regular price
5 in Stock
Condition: New-Surplus Original Box
Shipping calculated at checkout.
Product Overview
Allen Bradley 140M-D8E-C20 Motor Protection Circuit Breaker (MPCB), Supply Voltage 480Y/277V AC 50/60Hz, Standard Magnetic...  Read more
We accept:
  • American Express
  • Apple Pay
  • Diners Club
  • Discover
  • Google Pay
  • Mastercard
  • PayPal
  • Shop Pay
  • Venmo
  • Visa
warranty
IQElectro 2-Year Warranty
Warranty for Product #: 140M-D8E-C20
IQElectro offers a free 2-year warranty on all products. You can trust that every purchase is a reliable investment in the future of your company. Warranty Terms
2-3 Day Free Shipping
Packed Ready to Ship
24/7 Expert Support
Return within 30-Days
IQElectro LLC BBB Business Review
IQElectro is Not an authorized distributor for Allen-Bradley
Original Manufacturer's Warranty Not Covered, This Product is SURPLUS.

Product Description P/N: 140M-D8E-C20

Description / Specifications

Description 

AB 140M-D8E-C20 Manual Motor Protector/Starter that is rated Class 10, has adjustment dial from 14.5 - 20 AMPS and a rotary ON/OFF operator and is mounted on standard 35mm DIN rail.

 

Technical Specifications 

 

Brand Allen-Bradley
Type 140M
Part Number 140M-D8E-C20
Voltage 600
Amperage 20
Frame Type D Frame
Protection Magnetic Only
AIC Rating 65kA@480V
Functions I - Instantaneous
Phase 3
Poles 3
Connection Feed-Thru

  

 

Information About 140M-D8E-C20

The Allen-Bradley 140M-D8E-C20 is a 3 phase thermal-magnetic motor protective device incorporating adjustable
bimetal trips for motor overload protections and magnetic trips to de-energize the motor circuit in case of a short circuit.

The Allen Bradley 140M-D8E-C20 frame Motor Protection Circuit Breakers may have 2 cULus Listings – as Manual, Self-Protected Combination Motor Controllers and as Manual Motor Controllers (with optional approvals for Motor Disconnect and Group Installation). When UL/CSA listed as Manual, Self-Protected Combination Motor Controllers, the 140M Motor Protection Circuit Breakers provide all of the necessary NEC/CEC requirements for the protection and control of individual Motor Branch Circuits without additional protective devices. At some higher voltages and currents (particularly at 600V), a few of the AB 140M-D8E Series C devices are only UL/CSA Listed as Manual Motor Controllers (with optional approvals for Motor Disconnect and Group Installation). In NEC/CEC Group Installations, these devices must be applied per the appropriate rules which require the use of an upstream Branch-Circuit, Short-Circuit Protective Device (BCPD).



Manufacturer information

Allen-Bradley, a brand of Rockwell Automation, specializes in manufacturing industrial automation equipment. The product range includes programmable logic controllers (PLCs), motion control systems, safety devices, motor control equipment, automation software, and HMI panels. Allen-Bradley products are known for their reliability and integration with other systems.

Frequently Asked Questions about 140M-D8E-C20
Question: What is the purpose of the Allen-Bradley 140M-D8E-C20?
Date Update:13/06/2025
Answer:

The 140M-D8E-C20 is designed to provide overcurrent protection for electric motors. It helps to prevent motor damage caused by conditions such as overloads, short circuits, and phase loss. The breaker also provides protection against thermal overloads, ensuring motor safety and longevity.

Question: What is the current range for the 140M-D8E-C20 breaker?
Date Update:13/06/2025
Answer:

The 140M-D8E-C20 Motor Protection Circuit Breaker has an adjustable current range of 14.5 to 20 amps. This range allows for optimal protection depending on the motor's specific needs.

Question: What kind of maintenance is required for the 140M-D8E-C20?
Date Update:13/06/2025
Answer:

Regular inspections are recommended to ensure the breaker is functioning properly. Check for signs of wear or damage to the breaker’s components. Ensure that the breaker is free from dirt or debris and that the current setting is still appropriate for the motor.

Question: Is the Allen-Bradley 140M-D8E-C20 still available?
Date Update:13/06/2025
Answer:

The Allen-Bradley 140M-D8E-C20 Motor Protection Circuit Breaker has been discontinued by Rockwell Automation. If you are looking for a replacement or an alternative, Rockwell Automation recommends the 140MT-D9E-C20 as the updated model in the 140M series, which provides enhanced features while maintaining compatibility with the previous models.

Question: How do I replace the 140M-D8E-C20 if it becomes faulty?
Date Update:13/06/2025
Answer:

If the breaker needs to be replaced, first disconnect all power and safely remove the faulty breaker from the electrical panel. Install the new breaker by following the manufacturer's installation instructions and ensuring that all connections are secure. Verify the current settings and conduct a test to ensure proper operation.

IQElectro is not an authorized distributor.
QElectro LLC (IQElectro) is NOT an Authorized Distributor or in any way affiliated with Rockwell Automation, Siemens, or any other Manufacturers. IQElectro is NOT an Authorized Dealer of this product. The product may be of older version, date codes, or design than that available from authorized dealers. As IQElectro is not an authorized dealer of this product, the Original Manufacturer's Warranty and Support DO NOT apply. IQElectro sells SURPLUS only and DOES NOT SELL SOFTWARE or FIRMWARE licenses For more detailed information, please refer to the full version of our disclaimer policy Disclaimer Policy.
Description / Specifications

Description 

AB 140M-D8E-C20 Manual Motor Protector/Starter that is rated Class 10, has adjustment dial from 14.5 - 20 AMPS and a rotary ON/OFF operator and is mounted on standard 35mm DIN rail.

 

Technical Specifications 

 

Brand Allen-Bradley
Type 140M
Part Number 140M-D8E-C20
Voltage 600
Amperage 20
Frame Type D Frame
Protection Magnetic Only
AIC Rating 65kA@480V
Functions I - Instantaneous
Phase 3
Poles 3
Connection Feed-Thru

  

 

Information About 140M-D8E-C20

The Allen-Bradley 140M-D8E-C20 is a 3 phase thermal-magnetic motor protective device incorporating adjustable
bimetal trips for motor overload protections and magnetic trips to de-energize the motor circuit in case of a short circuit.

The Allen Bradley 140M-D8E-C20 frame Motor Protection Circuit Breakers may have 2 cULus Listings – as Manual, Self-Protected Combination Motor Controllers and as Manual Motor Controllers (with optional approvals for Motor Disconnect and Group Installation). When UL/CSA listed as Manual, Self-Protected Combination Motor Controllers, the 140M Motor Protection Circuit Breakers provide all of the necessary NEC/CEC requirements for the protection and control of individual Motor Branch Circuits without additional protective devices. At some higher voltages and currents (particularly at 600V), a few of the AB 140M-D8E Series C devices are only UL/CSA Listed as Manual Motor Controllers (with optional approvals for Motor Disconnect and Group Installation). In NEC/CEC Group Installations, these devices must be applied per the appropriate rules which require the use of an upstream Branch-Circuit, Short-Circuit Protective Device (BCPD).



Manufacturer information

Allen-Bradley, a brand of Rockwell Automation, specializes in manufacturing industrial automation equipment. The product range includes programmable logic controllers (PLCs), motion control systems, safety devices, motor control equipment, automation software, and HMI panels. Allen-Bradley products are known for their reliability and integration with other systems.

Check Out These Related Products

Customer Reviews

Based on 9 reviews
89%
(8)
0%
(0)
11%
(1)
0%
(0)
0%
(0)
O
Orlando Fuquen

140M-C2E-B63 | Allen-Bradley Motor Protection Circuit Breaker, 4.0-6.3 A, Frame C

M
María Margarita García G.
prices and lead time, and service so good!

prices and lead time, and service so good!

O
Oscar

Excellent product good quality

J
John Stingel

The company responsively addressed my issue, thank you for your understanding. I highly recommend them.

M
Mark Wyatt
IQElectro has fulfilled its commitments perfectly, scoring a full 10 out of 10, quickly and with ...

IQElectro has fulfilled its commitments perfectly, scoring a full 10 out of 10, quickly and with high quality