1489-M1C040
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Overview of Allen Bradley 1489-M1C040
The Allen Bradley 1489-M1C040 is a high-performance miniature circuit breaker designed for reliable branch circuit protection in industrial automation and control applications. As part of the Allen Bradley Bulletin 1489-M series, this 1-pole, 4A C-curve MCB offers robust short-circuit protection up to 10kA (15kA IEC) and supports both AC and DC applications. Its compact, modular design simplifies installation in panels and enclosures, while current limiting technology and a fast breaking time ensure equipment and personnel safety. Rated for up to 240V AC (277V max UL/CSA) and 48V DC, the 1489-M1C040 is built for demanding environments with a mechanical life of 20,000 operations and reliable performance across a wide temperature range. This circuit breaker is RoHS compliant, IP40 rated for dust protection, and certified for global markets, making it a trusted choice for engineers specifying industrial power distribution.
Key Features of Allen Bradley 1489-M1C040
- 1-pole, 4A C-curve thermal-magnetic trip provides protection for general loads and equipment with moderate inrush currents.
- Current limiting technology with a fast breaking time for enhanced safety and reduced energy let-through.
- UL489 and IEC/EN certified, with global approvals including CCC, CE, CSA, CUL, and UL.
- Dual terminals allow for connection of two conductors or a conductor and busbar, increasing installation flexibility.
- Support for both AC (up to 277V UL/CSA, 230V IEC) and DC (48V) applications.
- Reversible line and load terminals simplify wiring and reduce installation errors.
- High mechanical endurance—rated for 20,000 operations—and vibration-resistant design to minimize nuisance tripping.
- Compact, DIN rail-mountable construction with a width of just 17.5mm for space-saving panel layouts.
- IP40 enclosure rating for protection against dust ingress in industrial environments.
- RoHS compliant and fully recyclable, suitable for sustainable automation projects.
Technical Specs of Allen Bradley 1489-M1C040
| Specification | Value |
|---|---|
| Number of Poles | 1 |
| Rated Current | 4A |
| Trip Curve | C (5-10 times rated current) |
| Rated Voltage | Up to 277V AC, 48V DC (UL/CSA); 230V AC (IEC) |
| Interrupting Capacity | 10kA UL/CSA, 15kA IEC |
| Frequency | 50/60 Hz |
| Height/Width/Depth | 111mm / 17.5mm / 74mm |
| Wire Size | 1-35mm² solid, 1-25mm² stranded |
| IP Rating | IP40 |
| Temperature Range | -25°C to +55°C |
| Mechanical Life | 20,000 operations |
Applications / Use Case
The Allen Bradley 1489-M1C040 miniature circuit breaker is ideal for protecting industrial control circuits, machinery, and equipment that require reliable overcurrent and short-circuit protection. It is commonly used in panelboards, motor starter circuits, PLC cabinets, and automation control panels. The C-curve trip characteristic is well-suited for applications with moderate inrush currents, such as transformers, solenoid valves, and small motors. Its compact size, global certifications, and robust construction make it a preferred choice for OEMs, system integrators, and maintenance teams looking for durable, easy-to-install circuit protection. The 1489-M1C040 is also specified in projects requiring compliance with international safety standards and sustainable design practices.
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