UL 489 Approved Miniature Circuit Breakers

Optimize your circuit protection systems with UL 489 miniature circuit breakers designed for reliable branch circuit protection in industrial and commercial applications. The selection available from Major Electronix features DIN rail mount UL 489 listed breakers from like IMO Precision Controls. They offer overload and short circuit protection for control panels and electrical distribution systems. These compact breakers are engineered with thermal-magnetic trip mechanisms to automatically interrupt faults, helping to protect equipment and operators while minimizing downtime.

There are a wide range of configurations to meet diverse industrial automation needs, including 1-pole, 2-pole, and 3-pole miniature circuit breakers such as the IMO UB10 series. They are available in a range of amperages, from low-current options like 0.5A and 1.6A models to higher capacity units up to 63A. You’ll also find various trip curve options including B, C, and D curves, allowing you to match the breaker to specific load types like resistive circuits or high inrush equipment. Whether you need a single pole breaker like the IMO UB10C1013A for standard control circuits, a 2-pole model such as the UB10C2010A for increased protection, or a 3-pole unit like the UB10C3016A for three-phase systems, this category provides scalable solutions for panel builders and maintenance professionals.

UL 489 miniature circuit breakers are essential for branch circuit protection, offering certified performance for disconnecting and safeguarding electrical systems. They are useful in applications ranging from HVAC and motor control to lighting and automation equipment.