Why Choose the IMO UB10D3040A Miniature Circuit Breaker?
The IMO UB10D3040A is a heavy-duty UL489 miniature circuit breaker (MCB) designed to provide reliable protection against overloads and short circuits in industrial and commercial electrical installations. Manufactured by IMO Precision Controls, this robust circuit breaker is engineered for machinery, control panels, OEM equipment and industrial power distribution where dependable branch circuit protection is essential.
Featuring a 3-pole configuration, a 40 A rated current and a D curve tripping characteristic, the UB10D3040A is ideally suited to circuits supplying motors, transformers, compressors and other inductive loads that generate high inrush currents during start-up. Its compact DIN rail mounting format enables quick installation inside industrial control panels and electrical distribution boards.
With a 10 kA short circuit breaking capacity, thermal-magnetic protection and compliance with UL489 requirements, the UB10D3040A delivers dependable fault protection in demanding industrial environments. Its durable construction and compact modular design help maximise equipment uptime while simplifying installation and maintenance.
Key Advantages
- Industrial UL489 miniature circuit breaker for dependable branch circuit protection.
- 40 A rated current suitable for higher power industrial applications.
- D curve tripping characteristic designed for inductive loads with high starting currents.
- 3-pole configuration for three-phase electrical systems.
- 10 kA breaking capacity provides reliable short circuit protection.
- Compact DIN rail mounting simplifies installation and maintenance.
Key Features
- IMO Precision Controls UB10 series.
- 40 A rated current.
- D curve thermal-magnetic trip characteristic.
- 3-pole miniature circuit breaker.
- 10 kA short circuit breaking capacity.
- UL489 branch circuit protection.
- Compact modular construction.
- 35 mm DIN rail mounting.
Reliable Protection for Industrial Electrical Systems
Miniature circuit breakers automatically disconnect electrical circuits when overload or short circuit conditions occur, protecting cables, motors and connected equipment from electrical damage. The thermal-magnetic operating mechanism combines overload protection with rapid magnetic fault interruption to minimise downtime and improve electrical safety.
The IMO UB10D3040A is specifically designed for applications where equipment experiences high inrush currents during start-up. Its D curve characteristic helps prevent nuisance tripping while maintaining dependable protection against genuine electrical faults in industrial environments.
Typical Applications
- Industrial control panels.
- Three-phase motor protection.
- Machine building and OEM equipment.
- Automation and process control systems.
- Electrical distribution boards.
- Transformers, compressors and inductive loads.
