Home › Manufacturers › Allen Bradley › 140-CMN-6300

Allen Bradley

Allen Bradley 140-CMN-4000 Motor Protection Circuit Breaker

Allen Bradley 140-CMN-4000 Motor Protection Circuit Breaker.

● In Stock 12-Mo Warranty Same-Day Dispatch Ships Worldwide 🎖 Veteran-Owned

In Stock — Ready to Ship

ManufacturerAllen Bradley

Part number140-CMN-6300

Part Number 140-CMN-4000

Manufacturer Allen Bradley

Type Motor Protection Circuit Breaker

Amperage 40A

Get a price for 140-CMN-6300

Response within 1 business hour

🛡

12-month warranty

All units tested

⚡

Same-day dispatch

Order by 2pm CST

🌐

Worldwide delivery

US, EU, Asia, Middle East

🎖

Veteran-owned

CAGE: 9NK75

Motor protection Overload and short-circuit protection Disconnect function Class 10 trip class 40A rated operational current 3-pole

Product description

The Allen Bradley 140-CMN-4000 is a Motor Protection Circuit Breaker (MPCB) from the Bulletin 140M series. It is designed to provide overload, short-circuit, and disconnect protection for three-phase motors. This breaker features a 40 Ampere rated operational current, a 3-pole configuration, and a voltage rating up to 600V, with a Class 10 trip class.

This circuit breaker is ideal for applications in industrial automation, HVAC systems, and pumping stations, offering reliable motor control and protection against fault conditions. Its standard magnetic trip and adjustable thermal settings ensure precise protection for motor branch circuits.

Stanlo Automation, a veteran-owned surplus parts distributor, offers the Allen Bradley 140-CMN-4000. We provide quality industrial automation components and dependable service to keep your operations running efficiently.

Technical specifications

Part Number	140-CMN-4000
Manufacturer	Allen Bradley
Type	Motor Protection Circuit Breaker
Amperage	40A
Poles	3
Voltage	Up to 600V
Trip Class	10
Protection	Overload, Short-Circuit, Disconnect

Common applications

Industrial Automation

HVAC Systems

Pumping Stations

Manufacturing

Assembly Lines

Conveyor Systems

Compatible systems

Compatible with standard 3-phase motors and back-up fuses.

Also known as

Allen Bradley 140CMN4000 MPCB Bulletin 140-CMN

Replaces / compatible with

The 140M series, including the 140-CMN-4000, is designed to replace the older 140MN series, offering improved features and performance.

Technical note

Expert tip

The adjustable thermal trip setting on the 140-CMN-4000 allows for precise calibration to protect motors of various sizes and operating characteristics.

What happens next?

Email confirmation

Immediate receipt acknowledgment sent to you

Account manager assigned

Confirms your part's spec and condition

Your quote delivered

Tailored to your specific requirements

Frequently asked questions

What protection features does the Allen Bradley 140-CMN-4000 offer?

The Allen Bradley 140-CMN-4000 provides comprehensive motor protection, including overload protection (thermal trip), short-circuit protection (magnetic trip), and acts as a disconnect for the motor branch circuit.