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Allen-Bradley 1489-M1C030 UL489 3 A Miniature Circuit Breaker

1. Product Description

The 1489-M1C030 is a single-pole (1P), 3 A miniature circuit breaker from Allen-Bradley’s 1489-M series, designed for branch circuit protection in industrial and commercial applications. It complies with UL 489 standards for the USA and Canada and meets IEC 60947-2 requirements for international use. This thermal-magnetic breaker is ideal for extreme environmental conditions, offering fast tripping times and excellent resistance to shock and vibration .

2. Key Features

Thermal-Magnetic Protection – Combines thermal overload and magnetic short-circuit protection for reliable operation .
Compact & Modular Design – DIN rail mountable, saving space in control panels .
Wide Voltage Range – Supports 240V AC, 480V AC, and 48V DC applications .
Dual Terminals – Allows flexible wiring and busbar connections.
Reversible Line/Load Connections – Simplifies installation in different configurations .
High Durability – Resistant to shock, vibration, and extreme temperatures .

3. Technical Specifications

Parameter	Specification
Rated Current	3 A
Poles	1P (single-pole)
Trip Curve	C curve (medium inrush protection)
Voltage Rating	240V AC / 480V AC / 48V DC
Breaking Capacity	High (per UL 489 & IEC 60947-2)
Mounting	DIN rail (35 mm)
Operating Temp.	-25°C to +60°C
Certifications	UL 489, CSA C22.2 No. 5.1, CE, RoHS

4. Applications

Industrial Control Panels – Protects PLCs, motor starters, and I/O modules .
Machinery & Equipment – Used in conveyors, packaging machines, and robotic systems .
Power Distribution – Safeguards branch circuits in manufacturing plants .