Why Choose the IMO UB10D1003A Miniature Circuit Breaker?
The IMO UB10D1003A is a compact UL 489 miniature circuit breaker (MCB) designed to protect industrial control circuits, machinery and electrical installations against overloads and short circuits. Part of the established IMO UB10 series, this single-pole circuit breaker provides dependable branch circuit protection for low-current electrical applications.
Featuring a D curve tripping characteristic, the UB10D1003A is suitable for circuits supplying transformers, power supplies, solenoids, contactors and other inductive equipment with high temporary inrush currents. Its thermo-magnetic operating mechanism provides reliable fault disconnection while helping to prevent nuisance tripping during normal equipment energisation.
With a 3 A rated current, a single-pole configuration and a 10 kA short-circuit breaking capacity, the IMO UB10D1003A is ideal for protecting control and auxiliary circuits. Its DIN rail mounted construction supports straightforward installation inside industrial control panels, electrical enclosures and machinery cabinets.
Key Advantages
- Dependable overload and short-circuit protection for industrial electrical circuits.
- 3 A rated current suitable for control, auxiliary and equipment supply circuits.
- Single-pole configuration for individual branch circuit protection.
- D curve tripping characteristic accommodates high temporary inrush currents.
- 10 kA breaking capacity provides reliable short-circuit interruption.
- Compact DIN rail mounting simplifies installation and replacement.
Key Features
- IMO UB10 miniature circuit breaker series.
- 3 A rated operational current.
- Single-pole (1P) configuration.
- D curve operating characteristic.
- 10 kA rated short-circuit breaking capacity.
- Thermo-magnetic overcurrent protection.
- Contact position indicator.
- UL 489, IEC 60947-2 and IEC 60898-1 compliant.
- DIN rail mountable and RoHS compliant.
Reliable Protection for High-Inrush Control Circuits
Miniature circuit breakers automatically disconnect a circuit when an overload or short circuit occurs, helping to protect conductors, machinery and connected components from electrical damage. This supports safer operation, reduces the possibility of prolonged equipment faults and simplifies circuit restoration after the cause of a trip has been corrected.
The D curve response of the IMO UB10D1003A permits temporary current peaks of approximately 10 to 20 times its rated current before instantaneous magnetic tripping. This makes it particularly suitable for correctly designed circuits containing equipment with substantial start-up or energisation currents.
Typical Applications
- Industrial control and auxiliary circuits.
- Control transformers and power supplies.
- Solenoid and contactor circuits.
- PLC and factory automation panels.
- OEM machinery and production equipment.
- Electrical cabinets and distribution enclosures.
