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UB10D1050A IMO 10kA UL489 MCB 1 pole 50A D Curve
£14.24
Why Choose the IMO UB10D1050A Miniature Circuit Breaker?
The IMO UB10D1050A is a high-performance UL 489 miniature circuit breaker (MCB) engineered to provide reliable overload and short-circuit protection for industrial control panels, machinery and OEM electrical installations. Manufactured by IMO Precision Controls, this single-pole circuit breaker delivers dependable thermo-magnetic protection for demanding industrial applications.
Part of the proven IMO UB10 series, the UB10D1050A features a D curve tripping characteristic, making it ideal for circuits supplying motors, transformers, solenoids and other inductive loads with high inrush currents. Its compact DIN rail mounting design enables quick installation and seamless integration into modern electrical enclosures.
With a 50 A rated current, 10 kA short-circuit breaking capacity and compliance with UL 489, IEC 60947-2 and IEC 60898-1, the UB10D1050A delivers dependable branch circuit protection for industrial automation, machine building and commercial electrical systems.
Key Advantages
- Industrial UL 489 miniature circuit breaker.
- 50 A rated current for demanding branch circuit protection.
- D curve characteristic designed for high inrush current loads.
- 10 kA short-circuit breaking capacity.
- Thermo-magnetic protection against overloads and short circuits.
- Compact DIN rail mounting for rapid installation.
Key Features
- IMO UB10 miniature circuit breaker series.
- 50 A rated operational current.
- Single-pole configuration.
- D curve tripping characteristic.
- 10 kA breaking capacity.
- UL 489, IEC 60947-2 and IEC 60898-1 compliant.
- Thermo-magnetic overcurrent protection.
- DIN rail mounting with contact position indicator.
Reliable Protection for Industrial Electrical Systems
Miniature circuit breakers automatically disconnect electrical circuits when overloads or short circuits occur, protecting wiring, machinery and connected equipment from damage. Thermo-magnetic protection combines thermal overload protection with rapid magnetic fault interruption to maximise system reliability.
The IMO UB10D1050A is particularly suited to industrial applications where motors and other inductive loads generate high start-up currents. Its D curve characteristic helps prevent nuisance tripping while maintaining dependable protection during genuine fault conditions.
Typical Applications
- Industrial control panels.
- Motor protection circuits.
- Machine building and OEM equipment.
- Industrial automation systems.
- Electrical distribution panels.
- Transformers and inductive loads.
Technical Specifications
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| Certification | UL 489 | |
|---|---|---|
| Current | 50 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 | UB10D1050A | |
| Product type | Miniature circuit breaker (MCB) | |
| Rated operational current | 50 A | |
| Number of poles | 1 | |
| Trip 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 frequency | 50 / 60 Hz | |
| Protection rating | IP20 (NEMA 1) | |
| Mounting type | DIN rail EN 60715 | |
| Mechanical lifetime | 20,000 operations | |
| Electrical lifetime | 6,000 operations | |
| Operating temperature | -25°C to +55°C | |
| Weight | approx. 0.125 kg | |
| HS Code | 8536201090 | |
| Country of Manufacture | India |
Frequently Asked Questions
What is the IMO UB10D1050A used for?
The UB10D1050A protects industrial electrical circuits against overloads and short circuits in machinery, automation systems and electrical control panels.
What current rating does this circuit breaker have?
This miniature circuit breaker has a 50 A rated operational current.
Why does this breaker use a D curve?
The D curve characteristic is designed for circuits with high inrush currents, making it ideal for motors, transformers and other inductive equipment.
What is the breaking capacity of the UB10D1050A?
The breaker has a 10 kA rated short-circuit breaking capacity.
How is the UB10D1050A installed?
The breaker mounts directly onto a standard DIN rail inside industrial electrical panels and machinery enclosures.
Trusted by Electrical Professionals
IMO Precision Controls miniature circuit breakers are trusted by machine builders, OEM manufacturers and automation engineers to provide dependable branch circuit protection in demanding industrial environments.
