Standard delivery
£8 ex VAT · free over £200UK parcel delivery is £8 ex VAT, or free on orders over £200 ex VAT.
Heavier items may be charged at a weight-based or pallet rate, shown at checkout.
UB10D1030A IMO 10kA UL489 MCB 1 pole 30A D Curve
£14.24
Why Choose the IMO UB10D1030A Miniature Circuit Breaker?
The IMO UB10D1030A is a high-performance UL 489 miniature circuit breaker (MCB) designed to protect industrial electrical installations against overloads and short circuits. Manufactured by IMO Precision Controls, this single-pole circuit breaker provides dependable thermo-magnetic overcurrent protection for machinery, automation systems and electrical control panels.
As part of the established IMO UB10 miniature circuit breaker series, the UB10D1030A features a D curve tripping characteristic. Its instantaneous tripping range of approximately 10 to 20 times the rated current makes it particularly suitable for circuits containing motors, transformers, solenoids and other loads with high starting currents.
With a rated operational current of 30 A, a 10 kA short-circuit breaking capacity and a compact DIN rail mounting format, the UB10D1030A offers reliable branch circuit protection while supporting efficient installation inside industrial electrical enclosures and machinery cabinets.
Key Advantages
- Industrial UL 489 miniature circuit breaker.
- 30 A rated operational current for branch circuit protection.
- D curve tripping characteristic for high inrush current loads.
- 10 kA short-circuit breaking capacity.
- Thermo-magnetic overload and short-circuit protection.
- Compact DIN rail format simplifies panel installation.
Key Features
- IMO UB10 miniature circuit breaker series.
- 30 A rated current.
- Single-pole configuration.
- D curve operating characteristic.
- 10 kA rated breaking capacity.
- Compliant with UL 489, IEC 60947-2 and IEC 60898-1.
- Contact-position indicator for convenient status identification.
- DIN rail mounting in accordance with EN 60715.
Reliable Protection for Industrial Electrical Systems
Miniature circuit breakers automatically disconnect an electrical circuit when excessive current is detected. Thermo-magnetic operation combines thermal protection against sustained overloads with rapid magnetic tripping during severe short-circuit conditions, helping protect cables, equipment and electrical installations.
The D curve characteristic of the IMO UB10D1030A accommodates the temporary current surges produced when motors, transformers and other inductive equipment are energised. This helps minimise nuisance tripping while maintaining reliable protection against genuine electrical faults.
Typical Applications
- Industrial control panels and electrical cabinets.
- Electric motor and machinery circuits.
- Transformers, solenoids and inductive loads.
- OEM automation equipment.
- Manufacturing and production machinery.
- Industrial branch circuit protection.
Technical Specifications
Tick the specs you need, then view products that match.
| Certification | UL 489 | |
|---|---|---|
| Current | 30 A | |
| Phase | Single Phase | |
| Poles | 1-pole | |
| Device Type | MCB | |
| Trip Curve | D curve | |
| Breaking Capacity | 10 kA | |
| Manufacturer | IMO Precision Controls | |
| Series | UB10 | |
| Model | UB10D1030A | |
| Product type | Miniature circuit breaker (MCB) | |
| Rated operational current | 30 A | |
| Number of poles | 1 | |
| Tripping characteristic | D Curve | |
| Instantaneous tripping range | 10–20 × rated current | |
| Rated short-circuit breaking capacity | 10 kA | |
| UL rated operational voltage | 277 V AC | |
| IEC rated operational voltage | 230 V AC | |
| DC rated operational voltage | 48 V DC | |
| Rated operational frequency | 50 / 60 Hz | |
| Standards | UL 489, IEC 60947-2 and IEC 60898-1 | |
| Protection degree | NEMA 1 / IP20 | |
| Mounting type | DIN rail EN 60715 | |
| Mechanical lifetime | 20,000 operations | |
| Electrical lifetime | 6,000 operations | |
| Operating temperature | -25°C to +55°C | |
| Calibration temperature | +40°C | |
| Fastening torque | 2.5 Nm | |
| Weight | approx. 0.125 kg | |
| HS Code | 8536201090 | |
| Country of Manufacture | India |
Frequently Asked Questions
What is the IMO UB10D1030A used for?
The IMO UB10D1030A protects electrical circuits and connected equipment against overloads and short circuits in industrial machinery, automation systems and control-panel applications.
What current rating does this circuit breaker have?
The UB10D1030A has a rated operational current of 30 A.
What does the D curve characteristic mean?
The D curve characteristic provides instantaneous tripping at approximately 10 to 20 times the rated current, making the breaker suitable for motors, transformers and other equipment with high starting currents.
What is the breaking capacity of the UB10D1030A?
The circuit breaker has a rated short-circuit breaking capacity of 10 kA.
How is the IMO UB10D1030A installed?
The single-pole breaker mounts onto a standard DIN rail inside an industrial control panel, distribution board or machinery enclosure.
Trusted Industrial Circuit Protection
IMO Precision Controls miniature circuit breakers are used by machine builders, panel manufacturers and automation engineers to provide dependable overload and short-circuit protection in industrial electrical installations.
