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Allen Bradley 1489-M3D300 30A 3-Pole Miniature Circuit Breaker

Allen Bradley 1489-M3D300: 30A 3-Pole Miniature Circuit Breaker.

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ManufacturerAllen Bradley

Part number1489-M3D300

Amperage 30A

Current 30A

Poles 3

Voltage 480 VAC

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12-month warranty

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Veteran-owned

CAGE: 9NK75

30A current rating 3-pole configuration D-curve trip type 480V AC voltage UL489 listed Branch circuit protection

Product description

The Allen Bradley 1489-M3D300 is a 3-pole miniature circuit breaker providing 30 Amps of protection with a D-curve trip characteristic, suitable for high inrush current applications. It is rated for 480V AC and is UL489 listed, ensuring dependable performance in industrial settings. This breaker also features dual terminals for wiring versatility.

This circuit breaker is vital for protecting electrical systems, machinery, and control panels in demanding industrial environments. Its D-curve design is particularly effective for motor starting and equipment with significant inductive loads.

Stanlo Automation, a veteran-owned company, offers the Allen Bradley 1489-M3D300 as part of our commitment to providing quality surplus automation components. We focus on delivering reliable products and efficient service to support your continuous operations.

Technical specifications

Amperage	30A
Current	30A
Poles	3
Voltage	480 VAC
Trip Type	D-Curve
Standard	CCC, CE, CSA, CUL, UL
Type	Branch Circuit Protectors
Interrupt Rating	15 kAIC

Common applications

Industrial control systems

Heavy machinery

Power distribution

Manufacturing automation

Electrical protection

Compatible systems

Standard industrial electrical systems

Also known as

Allen Bradley 1489-M3D300 breaker 1489-M3D300 circuit breaker AB 1489-M3D300

Replaces / compatible with

This 30A, 3-pole circuit breaker is a suitable replacement for existing units in the Allen-Bradley 1489-M series and comparable industrial applications.

Technical note

Expert tip

The 15 kAIC interrupt rating is a key safety feature, ensuring the breaker can safely clear faults up to this level in the protected circuit.

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Frequently asked questions

What is the primary advantage of the D-Curve trip type on the 1489-M3D300?

The D-curve trip type on the Allen Bradley 1489-M3D300 provides high immunity to nuisance tripping caused by high inrush currents, making it ideal for protecting motor circuits and other inductive loads.