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Allen Bradley 140G-K3F3-D40 400A K-Frame Molded Case Circuit Breaker

Allen Bradley 140G-K3F3-D40 K-Frame molded case circuit breaker.

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ManufacturerAllen Bradley

Part number140G-K3F3-D40

Frame K, 400A

Number of Poles 3

Trip Type Adjustable Thermal/Adjustable Magnetic

Trip Range 280-400A Thermal, 2000-4000A Magnetic

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Veteran-owned

CAGE: 9NK75

K-Frame design 400A rating 3-pole Adjustable thermal and magnetic trip High interrupting capacity Line protection

Product description

The Allen-Bradley 140G-K3F3-D40 is a K-Frame molded case circuit breaker (MCCB) designed for robust protection in industrial applications. It features a 400 Amp frame size and a 3-pole configuration, making it suitable for three-phase power systems. This breaker is equipped with an adjustable thermal and adjustable magnetic trip type, allowing for precise protection settings within a range of 280-400A thermal and 2000-4000A magnetic. The interrupting rating is 35 kAIC at 480V AC.

This MCCB is ideal for line protection of control panels and protecting circuits from overcurrents and short circuits. It is widely used in manufacturing facilities, machine building, and other industrial environments where reliable and adjustable circuit protection is essential. The 140G series is known for its durability and performance in demanding conditions.

Stanlo Automation, your veteran-owned surplus parts distributor, offers the Allen-Bradley 140G-K3F3-D40. Sourcing surplus parts from Stanlo provides a reliable and economical solution for your automation needs, ensuring you get quality components at competitive prices.

Technical specifications

Frame	K, 400A
Number of Poles	3
Trip Type	Adjustable Thermal/Adjustable Magnetic
Trip Range	280-400A Thermal, 2000-4000A Magnetic
Interrupt Rating	35 kAIC @ 480V AC
Voltage	600V AC

Common applications

Industrial Control Panels

Motor Protection

Manufacturing

Machine Building

Power Distribution

Automation

Compatible systems

Requires compatible Allen-Bradley 140G series trip units

Also known as

140G-K3F3-D40 AB 140G-K3F3-D40 Allen Bradley 400A MCCB K-Frame Circuit Breaker

Replaces / compatible with

Compatible with Allen-Bradley 140G series trip units and accessories. Consult documentation for specific compatibility.

Technical note

Expert tip

Ensure proper torque is applied to the terminals during installation to maintain reliable electrical connections for the 140G-K3F3-D40.

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Frequently asked questions

What is the adjustable trip range for the Allen-Bradley 140G-K3F3-D40 circuit breaker?

The Allen-Bradley 140G-K3F3-D40 circuit breaker features an adjustable thermal trip range of 280 to 400 Amps and an adjustable magnetic trip range of 2000 to 4000 Amps. This allows for precise tuning of protection settings to match specific load requirements.