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UB10D2040A IMO 10kA UL489 MCB 2 pole 40A D Curve
£28.44
Why Choose the IMO UB10D2040A Miniature Circuit Breaker?
The IMO UB10D2040A is a robust 2-pole miniature circuit breaker (MCB) engineered to provide dependable protection against overloads and short circuits in industrial, commercial and OEM electrical installations. As part of the proven IMO UB10 circuit protection range, this D curve MCB is specifically designed for applications with high inrush currents, including motors, transformers and other inductive loads.
Its D curve tripping characteristic allows temporary starting currents to pass without nuisance tripping while maintaining rapid disconnection during genuine fault conditions. Manufactured to recognised international standards, the UB10D2040A offers reliable thermo-magnetic protection in a compact DIN rail-mounted format for straightforward installation in control panels and distribution boards.
With a rated current of 40 A, a 2-pole configuration and a 10 kA breaking capacity, the UB10D2040A is ideal for protecting industrial machinery, automation systems and commercial electrical installations where dependable circuit protection is essential.
Key Advantages
- Reliable overload and short-circuit protection.
- 40 A rated current for demanding electrical circuits.
- D curve tripping characteristic suitable for high-inrush applications.
- 2-pole configuration provides simultaneous circuit isolation.
- 10 kA breaking capacity for dependable fault interruption.
- Compact DIN rail-mounted design for quick installation.
Key Features
- IMO UB10 miniature circuit breaker series.
- 40 A rated operational current.
- D curve trip characteristic.
- 2-pole construction.
- 10 kA short-circuit breaking capacity.
- Thermo-magnetic overcurrent protection.
- Contact position indicator.
- 35 mm DIN rail mounting.
Reliable Protection for Industrial Electrical Systems
Miniature circuit breakers automatically disconnect electrical circuits whenever overload or short-circuit conditions occur, helping protect wiring, machinery and connected equipment from electrical damage. The thermo-magnetic design combines thermal overload protection with rapid magnetic fault interruption for dependable circuit safety.
The IMO UB10 series is widely used in industrial automation, machinery and commercial electrical installations. Its D curve characteristic makes it especially suitable for applications where motors, transformers and other inductive equipment generate high temporary starting currents.
Typical Applications
- Industrial control panels.
- Motor and transformer protection.
- Distribution boards and switchboards.
- OEM machinery.
- Industrial automation systems.
- Commercial electrical installations.
Technical Specifications
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| Certification | UL 489 | |
|---|---|---|
| Current | 40 A | |
| Poles | 2-pole | |
| Device Type | MCB | |
| Trip Curve | D curve | |
| Breaking Capacity | 10 kA | |
| Manufacturer | IMO Precision Controls | |
| Series | UB10 | |
| Model | UB10D2040A | |
| Product type | Miniature circuit breaker (MCB) | |
| Rated current | 40 A | |
| Number of poles | 2 | |
| Trip characteristic | D Curve | |
| Rated voltage | 230 / 400 V AC, maximum 60 V DC | |
| Rated insulation voltage | 500 V | |
| Rated frequency | 50 / 60 Hz | |
| Short-circuit breaking capacity | 10 kA | |
| Terminal capacity | 1 to 25 mm² | |
| Mounting type | 35 mm DIN rail | |
| Dimensions (H × W × D) | approx. 85.5 × 35.2 × 78 mm | |
| Weight | approx. 0.2 kg | |
| HS Code | 8536201090 | |
| Country of Manufacture | India |
Frequently Asked Questions
What is the IMO UB10D2040A used for?
It protects electrical circuits against overloads and short circuits, particularly circuits supplying motors, transformers and other inductive equipment.
What is the current rating?
The UB10D2040A has a 40 A rated current.
Why choose a D curve circuit breaker?
D curve breakers tolerate higher temporary inrush currents, making them ideal for motors, transformers and other inductive loads while reducing nuisance tripping.
What is the breaking capacity?
The breaker provides a 10 kA short-circuit breaking capacity for dependable protection against electrical faults.
How is the UB10D2040A installed?
The breaker is designed for mounting onto a standard 35 mm DIN rail inside distribution boards, switchboards and industrial control panels.
Trusted Circuit Protection from IMO
IMO circuit protection products are trusted by electrical engineers, panel builders and OEM manufacturers for reliable electrical protection, straightforward installation and dependable long-term performance in demanding industrial environments.
