Why Choose the IMO UB10D3050A Miniature Circuit Breaker?
The IMO UB10D3050A is a robust UL489 miniature circuit breaker (MCB) designed to protect industrial and commercial electrical circuits against overloads and short circuits. Manufactured by IMO Precision Controls, this compact protective device is suitable for machinery, automation equipment, control panels and electrical distribution systems requiring dependable three-phase branch circuit protection.
Featuring a 3-pole configuration, a 50 A rated current and a D curve tripping characteristic, the UB10D3050A is particularly suitable for circuits supplying motors, transformers, compressors and other inductive equipment. The D curve characteristic accommodates the temporary high inrush currents commonly generated when industrial equipment starts.
With a 10 kA short circuit breaking capacity, thermal-magnetic operation and a compact DIN rail mounting format, the UB10D3050A provides effective fault interruption in demanding environments. It offers machine builders, panel manufacturers and electrical engineers a reliable solution for protecting higher-current industrial circuits.
Key Advantages
- Dependable UL489 miniature circuit breaker for industrial branch circuit protection.
- 50 A rated current for higher-current machinery and distribution applications.
- D curve tripping characteristic accommodates equipment with high starting currents.
- 3-pole configuration for three-phase electrical systems.
- 10 kA breaking capacity provides effective short circuit protection.
- Compact DIN rail design simplifies installation, maintenance and replacement.
Key Features
- IMO Precision Controls UB10 series.
- 50 A rated current.
- D curve thermal-magnetic trip characteristic.
- 3-pole miniature circuit breaker.
- 10 kA short circuit breaking capacity.
- UL489 branch circuit protection design.
- Compact modular construction for space-efficient panels.
- Standard DIN rail mounting.
Reliable Protection for Industrial Electrical Systems
Miniature circuit breakers automatically disconnect an electrical circuit when excessive current is detected. The thermal element responds to sustained overload conditions, while the magnetic element provides rapid operation during severe short circuit faults. This helps protect cables, machinery and connected electrical equipment from damage.
The D curve characteristic of the IMO UB10D3050A permits higher temporary inrush currents before magnetic tripping occurs. This makes the breaker suitable for industrial equipment that draws substantial current during start-up while maintaining dependable protection against genuine electrical faults.
Typical Applications
- Three-phase motor circuits.
- Industrial control panels.
- Transformers, compressors and inductive loads.
- Machine building and OEM equipment.
- Factory automation and process control systems.
- Commercial and industrial distribution boards.
