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Allen Bradley 1489-M1C400 Miniature Circuit Breaker - 40A, 1 Pole

Allen Bradley 1489-M1C400: 1-Pole, 40A Miniature Circuit Breaker with C-Curve Trip.

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ManufacturerAllen Bradley

Part number1489-M1C400

Amperage 40A

Poles 1

Trip Type C-Curve

Voltage 277V AC/48V DC (UL/CSA), 230V AC (IEC/EN)

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Veteran-owned

CAGE: 9NK75

Single Pole Design C-Curve for High Inrush Thermal-Magnetic Protection UL489 Listed IEC Certified DIN Rail Mounting

Product description

The Allen Bradley 1489-M1C400 is a 1-pole miniature circuit breaker designed for demanding branch circuit protection applications. It features a thermal-magnetic trip mechanism with a C-curve, providing excellent performance for circuits with significant inrush currents. This breaker is rated for 40A and operates at up to 277V AC / 48V DC (UL/CSA) or 230V AC (IEC/EN), with a 10 kAIC interrupt rating.

This circuit breaker is essential for safeguarding equipment in heavy-duty industrial settings, including manufacturing plants, large machinery, and power distribution systems. Its C-curve is well-suited for protecting circuits that power motors and other equipment with high starting currents.

Stanlo Automation, a veteran-owned distributor specializing in surplus industrial automation parts, offers the Allen Bradley 1489-M1C400. We provide cost-effective solutions and prompt delivery to minimize your operational disruptions.

Technical specifications

Amperage	40A
Poles	1
Trip Type	C-Curve
Voltage	277V AC/48V DC (UL/CSA), 230V AC (IEC/EN)
Interrupt Rating	10 kAIC
Series	1489-M

Common applications

Heavy Industrial Applications

Motor Protection

Power Distribution

Manufacturing Automation

Control Systems

Panel Building

Compatible systems

Compatible with standard control panels and automation systems requiring UL489 protection and DIN rail mounting.

Also known as

Allen Bradley 1489M1C400 Bulletin 1489-M 40 Amp Breaker 1489 Series 40A C-Curve

Replaces / compatible with

The 1489-M1C400 is designed to replace similar 40A, 1-pole miniature circuit breakers in UL489 compliant systems, particularly those in the Allen-Bradley 1489-M series.

Technical note

Expert tip

The 1489-M1C400's 10 kAIC interrupting capacity makes it suitable for use in applications where higher fault currents might be present, providing a reliable safety margin.

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Frequently asked questions

What is the interrupt rating of the Allen Bradley 1489-M1C400 miniature circuit breaker?

The Allen Bradley 1489-M1C400 miniature circuit breaker has an interrupt rating of 10 kAIC. This means it can safely interrupt fault currents up to 10,000 Amperes, providing crucial protection for industrial electrical systems.