Why Choose the IMO UB10D3007A Miniature Circuit Breaker?
The IMO UB10D3007A is a high-quality 3-pole miniature circuit breaker (MCB) designed to protect three-phase electrical systems from overloads and short circuits. Part of the proven IMO UB10 UL489 series, this breaker features a 7 A current rating, D Curve tripping characteristic and a 10 kA breaking capacity, making it ideal for industrial automation, OEM machinery and commercial electrical installations.
The D Curve characteristic allows the breaker to withstand high temporary inrush currents generated by motors, transformers, solenoids and other inductive equipment without nuisance tripping, whilst still providing rapid disconnection during genuine overload and short-circuit conditions.
Designed for DIN rail installation, the UB10D3007A combines compact dimensions with dependable thermal-magnetic protection, making it an excellent choice for protecting industrial control circuits and three-phase power distribution systems.
Key Advantages
- Reliable overload and short-circuit protection.
- 7 A rated current for industrial control applications.
- D Curve suitable for inductive loads with high inrush currents.
- 3-pole protection for three-phase circuits.
- 10 kA breaking capacity for dependable fault interruption.
- Compact DIN rail-mounted design.
- Thermal-magnetic operating mechanism.
Key Features
- IMO Precision Controls UB10 Series.
- Model: UB10D3007A.
- Rated current: 7 A.
- Three-pole configuration.
- D Curve trip characteristic.
- 10 kA short-circuit breaking capacity.
- UL489 miniature circuit breaker.
- 35 mm DIN rail mounting.
- Compact industrial construction.
Functional Overview
The IMO UB10D3007A automatically disconnects electrical circuits whenever excessive current is detected. Its thermal element protects against sustained overloads, while the magnetic mechanism rapidly interrupts high fault currents to minimise equipment damage and improve electrical safety.
The D Curve trip characteristic makes this breaker especially suitable for inductive loads such as motors, transformers, compressors and contactor coils where high inrush currents occur during start-up.
Typical Applications
- Industrial automation systems.
- Motor control panels.
- OEM machinery.
- Three-phase distribution boards.
- Industrial control panels.
- Transformer protection.
- Pump and compressor installations.
- Electrical switchboards.
