1489-M1C400

Overview of Allen Bradley 1489-M1C400

The Allen Bradley 1489-M1C400 is a single-pole miniature circuit breaker designed for reliable branch circuit protection in industrial and commercial applications. Rated at 40 amps, it features a C-curve trip characteristic suitable for general purpose use where moderate inrush current tolerance is necessary. This circuit breaker supports operational voltages up to 277V AC, making it compatible with a wide range of low-voltage electrical systems. Its compact size and proven durability ensure seamless integration into panel assemblies while maintaining safety and performance standards. The 1489-M1C400 complies with multiple international certifications including UL, CSA, and CE, reflecting its quality and conformity to rigorous industry regulations.

Key Features of Allen Bradley 1489-M1C400

• 40 Amp rated current for medium-capacity circuit protection
• Single-pole configuration for branch circuit applications
• C-curve trip characteristic for protection against short circuits and overloads
• Nominal voltage rating of up to 277V AC
• Interrupt capacity of 10kA at 240V AC ensuring safe fault clearing
• Conforms to UL489, CSA, CE safety standards
• Compact footprint facilitating easy panel installation
• Operating frequency compatible with 50/60 Hz systems
• Robust thermal-magnetic trip mechanism for reliable performance

Technical Specs of 1489-M1C400

Specification	Value
Rated Current	40 A
Number of Poles	1
Trip Curve	C
Rated Voltage	277 V AC
Interrupt Rating	10 kAIC @ 240 V AC
Frequency	50/60 Hz
Standards	UL489, CSA, CE

Applications / Use Case

The Allen Bradley 1489-M1C400 miniature circuit breaker is widely used in industrial control panels and distribution boards to protect electrical circuits from damage caused by overcurrent or short circuits. It is suitable for a variety of machinery and equipment where reliable branch circuit protection is essential. Commonly applied in manufacturing plants, commercial buildings, and infrastructure projects, this breaker helps maintain system stability by preventing electrical faults that could compromise safety or cause downtime. Its C-curve rating is particularly effective for circuits with moderate motor starting currents or lighting loads. The 1489-M1C400 is an integral component in ensuring operational continuity and safeguarding valuable assets in harsh industrial environments.

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