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Allen Bradley 140G-KTF3-D40 400A K-Frame Thermal Magnetic Trip Unit

Allen Bradley 140G-KTF3-D40 K-Frame thermal magnetic trip unit.

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ManufacturerAllen Bradley

Part number140G-KTF3-D40

Frame K, 400A

Number of Poles 3

Trip Type Thermal Magnetic (Adjustable)

Rated Current 400A

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Veteran-owned

CAGE: 9NK75

K-Frame compatibility 400A rating 3-pole Adjustable thermal and magnetic trip Thermal Magnetic protection For use with breaker frames

Product description

The Allen-Bradley 140G-KTF3-D40 is a K-Frame thermal magnetic trip unit designed for 400 Amp circuit breaker applications. This 3-pole unit provides adjustable thermal overload protection and adjustable magnetic short-circuit protection, allowing for precise calibration to protect electrical circuits and equipment from damage. It is a key component that integrates with a compatible breaker frame to form a complete molded case circuit breaker.

This trip unit is essential for applications requiring reliable overcurrent and short-circuit protection, commonly found in industrial control panels, motor control centers, and power distribution systems. Its adjustable settings offer flexibility to accommodate various load requirements and ensure optimal system safety.

Stanlo Automation, your veteran-owned surplus parts distributor, offers the Allen-Bradley 140G-KTF3-D40. Sourcing surplus automation components from Stanlo provides a cost-effective and reliable solution for your maintenance and upgrade needs.

Technical specifications

Frame	K, 400A
Number of Poles	3
Trip Type	Thermal Magnetic (Adjustable)
Rated Current	400A
Standards	CCC, KC, RCM, UL489, CSA22.2 No. 5, IEC 60947-2

Common applications

Motor Protection

Industrial Control Panels

Power Distribution

Machine Building

Automation Systems

Compatible systems

Compatible with Allen-Bradley 140G K-Frame molded case circuit breaker frames

Also known as

140G-KTF3-D40 AB 140G-KTF3-D40 Allen Bradley 400A Trip Unit K-Frame Trip Unit

Replaces / compatible with

This trip unit is designed to be used with Allen-Bradley 140G K-Frame molded case circuit breaker frames. Consult documentation for specific frame compatibility.

Technical note

Expert tip

When adjusting the thermal trip settings on the 140G-KTF3-D40, ensure they are set within the acceptable range of 280-400A as specified for this unit.

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Frequently asked questions

What type of protection does the Allen-Bradley 140G-KTF3-D40 trip unit provide?

The Allen-Bradley 140G-KTF3-D40 trip unit provides adjustable thermal protection for overloads and adjustable magnetic protection for short circuits. This dual functionality ensures comprehensive protection against common electrical faults.