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The 1489-M3C400 is a miniature circuit breaker from the Allen Bradley Bulletin 1489 series. Designed with three poles, it offers a rated current of 40 A and operates at a voltage rated for 480Y/277 V AC.
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| Manufacturer | Allen Bradley |
|---|---|
| Product Type | Miniature Circuit Breaker |
| Product Line | Bulletin 1489 |
| Part Number | 1489-M3C400 |
| Weight | 0.81 lbs (0.37 kg) |
| Trip Curve | Curve C |
| Number of Poles | 3-pole |
| Rated Current | 40 A |
| Rated Voltage | 480Y/277 V |
| Voltage Type | AC |
| Minimum Frequency | 50 Hz |
| Maximum Frequency | 60 Hz |
| Short-Circuit Interrupting Capacity | 15 kA |
| IP Rating | IP20 |
| Wire Size | 25 mm² |
| Conductor Size | 35 mm² |
| Mounting Type | DIN-rail Mount |
| Pollution Degree | Degree 3 |
The Allen Bradley 1489-M3C400 is a highly efficient miniature circuit breaker designed for versatile applications. It features a 3-pole configuration and is rated for 40 A current, making it suitable for various electrical loads. The rated voltage of this unit is set at 480Y/277 V AC, effectively supporting standard voltage applications.
This breaker operates effectively across a frequency spectrum ranging from a minimum of 50 Hz to a maximum of 60 Hz. The trip curve of this model is classified as Curve C, which provides specific protection characteristics ideal for certain applications. The 1489-M3C400 is engineered to handle short-circuit conditions with a robust interrupting capacity of 15 kA, ensuring reliability in fault situations.
For installation, it uses a DIN-rail mounting style, which facilitates quick and easy integration into control panels. This unit has an IP20 rating, indicating protection against dust and moisture, suitable for various indoor settings. It accommodates wire sizes of up to 25 mm² and is compatible with a conductor size of 35 mm², maintaining optimal performance and connectivity. Designed for environments with pollution degree 3, this circuit breaker meets necessary operational standards and offers dependable performance.