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.
B10C4001A IMO MCB 10kA, C Curve 4 Pole, 1A
£28.47
Why Choose the IMO B10C4001A Miniature Circuit Breaker?
The IMO B10C4001A is a compact four-pole miniature circuit breaker designed to protect three-phase electrical circuits with a switched neutral against overload and short-circuit conditions. Part of the IMO B10 circuit protection range, it provides coordinated disconnection of all four poles for dependable protection in industrial control panels, commercial distribution boards and OEM equipment.
Featuring a sensitive 1 A rated current and a C curve tripping characteristic, the B10C4001A is suitable for low-current control, instrumentation and auxiliary circuits that may experience moderate inrush currents during normal operation. Its thermal-magnetic operating mechanism responds to sustained overloads and rapidly interrupts high short-circuit currents.
The breaker offers a 10 kA short-circuit breaking capacity and mounts directly onto a standard 35 mm DIN rail. Its four-pole modular construction supports organised installation within three-phase electrical systems where simultaneous isolation of three phases and the neutral conductor is required.
Key Advantages
- Four-pole circuit protection for three-phase and neutral systems.
- 1 A current rating for sensitive control and auxiliary circuits.
- C curve characteristic accommodates moderate starting currents.
- 10 kA breaking capacity for dependable fault interruption.
- Thermal-magnetic protection against overloads and short circuits.
- Compact DIN rail design simplifies panel installation.
Key Features
- IMO B10 Series miniature circuit breaker.
- Four-pole configuration.
- 1 A rated current.
- C curve tripping characteristic.
- 10 kA short-circuit breaking capacity.
- Thermal-magnetic operating mechanism.
- Simultaneous switching of all four poles.
- Manual switching and circuit isolation capability.
- Compact modular construction.
- Suitable for standard 35 mm DIN rail mounting.
Reliable Four-Pole Protection for Control Circuits
The IMO B10C4001A combines thermal and magnetic protection within a mechanically linked four-pole device. The thermal element responds to prolonged overcurrent conditions, while the magnetic mechanism provides rapid disconnection when a significant short-circuit current is detected.
Its C curve operating characteristic is suitable for equipment with moderate transient starting currents. This helps reduce unnecessary tripping while maintaining effective protection for sensitive three-phase control, monitoring and instrumentation circuits.
Because all four poles operate together, the B10C4001A can disconnect the three phase conductors and neutral simultaneously. This supports safe isolation and helps ensure that the complete protected circuit is disconnected when the breaker trips or is manually switched off.
Typical Applications
- Three-phase industrial control circuits.
- Automation and machinery control panels.
- Instrumentation and monitoring systems.
- Low-current transformer circuits.
- Commercial electrical distribution boards.
- Building management systems.
- OEM machinery and process equipment.
Technical Specifications
Tick the specs you need, then view products that match.
| Current | 1 A | |
|---|---|---|
| Phase | Three Phase | |
| Poles | 4-pole | |
| Device Type | MCB | |
| Trip Curve | C curve | |
| Breaking Capacity | 10 kA | |
| Manufacturer | IMO Precision Controls | |
| Series | B10 Miniature Circuit Breakers | |
| Model | B10C4001A | |
| Product type | Miniature circuit breaker | |
| Rated current | 1 A | |
| Number of poles | 4 | |
| Trip characteristic | C Curve | |
| Breaking capacity | 10 kA | |
| Rated operating voltage | Up to 415 V AC | |
| Rated frequency | 50/60 Hz | |
| Protection function | Overload and short-circuit protection | |
| Operating mechanism | Thermal-magnetic | |
| Reset type | Manual reset | |
| Connection type | Screw terminals | |
| Mounting type | 35 mm DIN rail | |
| Typical system | Three-phase and neutral electrical circuits | |
| HS Code | 8536201090 | |
| Country of Manufacture | China |
Frequently Asked Questions
What is the IMO B10C4001A used for?
The IMO B10C4001A is used to protect low-current three-phase and neutral circuits against overload and short-circuit conditions.
What current rating does the B10C4001A have?
The circuit breaker has a rated current of 1 A, making it suitable for sensitive control, instrumentation and auxiliary circuits.
How many poles does this circuit breaker have?
The B10C4001A has a four-pole configuration, allowing three phase conductors and the neutral conductor to be switched and protected together.
What does the C curve characteristic mean?
A C curve miniature circuit breaker is designed to tolerate moderate inrush currents while still providing reliable overload and short-circuit protection.
What is the breaking capacity of the B10C4001A?
The breaker has a 10 kA short-circuit breaking capacity.
How is the IMO B10C4001A installed?
The breaker mounts onto a standard 35 mm DIN rail inside an electrical distribution board or industrial control panel.
Trusted Circuit Protection for Professional Installations
IMO miniature circuit breakers are used by panel builders, electrical contractors and automation engineers for reliable fault protection, convenient DIN rail installation and dependable performance in industrial electrical systems.
