140M-D8N Allen Bradley

Description

Product Name: 140M-D8N Allen Braley I/O module

Product details:

The Allen-Bradley 140M-D8N is a high-performance Motor Protection Circuit Breaker (MPCB) from the Bulletin 140M series. It is designed to provide comprehensive protection for individual motor loads, combining the functions of a disconnect, short-circuit protection, and thermal overload protection into a single compact device.

Product Overview

The 140M-D8N belongs to the D-Frame size family. Unlike standard miniature circuit breakers, these MPCBs are specifically calibrated for the high inrush currents typical of motor starting, ensuring that the motor is protected without “nuisance tripping.”

Technical Specifications

Below are the primary parameters for the 140M-D8N:

Key Advantages

• Space Saving: Integrates the functionality of a fuse block, circuit breaker, and overload relay, significantly reducing control panel footprint.
• Cost-Efficient: Reduces wiring time and the number of components needed in a motor starter assembly.
• High Interrupting Rating: Designed to handle high fault currents, often eliminating the need for additional upstream fuses.
• Modular Design: Easily accepts front and side-mount auxiliary contacts, trip indicators, and undervoltage release modules.
• Lockable Handle: Features a rotary handle that is lockable in the “OFF” position for improved maintenance safety (LOTO).

Installation & Usage Precautions

• Current Setting: Ensure the dial is adjusted to the Full Load Amps (FLA) of the motor, not the service factor amps.
• Heat Dissipation: When mounting multiple units side-by-side, ensure adequate ventilation or apply de-rating factors as specified in the manual to prevent thermal tripping.
• Tightening Torque: Always use a calibrated torque wrench on the terminals to prevent overheating caused by loose connections.
• Environment: Avoid installation in environments with high humidity or corrosive gases unless housed in an appropriately rated (NEMA 4X/IP66) enclosure.

Common Applications

The 140M-D8N is typically found in industrial automation and motor control centers (MCCs) for:

1. Conveyor Systems: Protecting motors used in logistics and manufacturing.
2. HVAC Systems: Controlling fans and pump motors.
3. Pump Control: Used in water treatment or chemical processing plants.
4. Machine Tools: Providing localized protection for spindles and hydraulic pumps.

Advantages: Foxboro, OVATION, TRICONEX, Allen-Bradley, ABB, Motorola, Siemens Moore, Ge Fanuc, Woodward, Bently Nevada and other major import brands!

We have the same series of models in stock. If you don’t find the model you need, please contact us and we will provide you with an official quotation！

Colour：new Warranty: 12 months
Lead Time：3-day working day Country of origin: Sweden
Price: Please contact us Product weight：0.515kg
Shipping Port: Xiamen, China
Payment: Bank of Chicago, Bank of Singapore
Express cooperation: fedex, DHL, UPS and your express account
Service: Professional Sales provides 24 hours /7 days online service

The following are other related models. If you can’t find the product you need, please contact us. Thank you

JUSTWELL PTE. LTD. sells new and discontinued products, and purchases such specialty products through independent channels. JUSTWELL PTE. LTD. is not an authorized distributor, distributor, or representative of the featured products on this website. All product names/images, trademarks, brands, and logos used on this website are the property of their respective owners. Product descriptions, descriptions, or sales with these name images, trademarks, brands, and logos are for identification purposes only and do not imply any association or authorization with any rights holders.
This article is from the official website of JUSTWELL PTE. LTD. If reprinted, please attach this link:https://www.justwellcenter.com/

All other brand or product names mentioned in this document may be trademarks or registered trademarks of their respective holders.