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B10C4N63A IMO MCB 10kA, C Curve 4P+N, 63 Amp
£43.18
Why Choose the IMO B10C4N63A Miniature Circuit Breaker?
The IMO B10C4N63A is a high-performance four-pole plus neutral (4P+N) miniature circuit breaker (MCB) designed to provide reliable overload and short-circuit protection for three-phase electrical installations. Featuring a 63 A rated current, C curve tripping characteristic and a 10 kA breaking capacity, it is ideally suited to industrial automation systems, commercial distribution boards and OEM machinery.
The integrated switched neutral allows the neutral conductor to be disconnected simultaneously with the three live conductors, providing enhanced isolation and improved safety during maintenance and fault conditions. Its C curve characteristic makes the breaker particularly suitable for circuits supplying motors, transformers, HVAC equipment, compressors, pumps and other inductive loads with moderate inrush currents.
Manufactured to IEC 60898-1, the B10C4N63A incorporates a thermal-magnetic operating mechanism that provides dependable overload protection together with rapid interruption of short-circuit faults. Its compact DIN rail mounting format allows straightforward installation into modern electrical panels while delivering reliable long-term performance.
Key Advantages
- Four-pole plus neutral protection for three-phase systems.
- 63 A rated current for higher-power distribution circuits.
- C curve tripping characteristic for inductive loads with moderate inrush currents.
- 10 kA short-circuit breaking capacity.
- Switched neutral provides complete circuit isolation.
- Thermal-magnetic overload and short-circuit protection.
- Compact DIN rail mounted construction.
Key Features
- IMO B10 Series miniature circuit breaker.
- 4P+N configuration.
- 63 A rated current.
- C curve tripping characteristic.
- 10 kA breaking capacity.
- Thermal-magnetic trip mechanism.
- Mechanically linked poles with switched neutral.
- Contact position indication window.
- Finger-safe IP20 terminals.
- Compatible with pin and fork busbars.
- Suitable for standard 35 mm DIN rail mounting.
Enhanced Protection with Switched Neutral
The IMO B10C4N63A combines dependable thermal overload protection with instantaneous magnetic short-circuit protection to safeguard electrical installations from damaging fault conditions. The thermal element responds to sustained overload currents, while the magnetic mechanism rapidly interrupts severe short circuits before they can damage conductors or connected equipment.
Its 4P+N configuration disconnects the neutral conductor together with all three live phases, providing improved isolation for maintenance and enhancing electrical safety. This design is particularly beneficial in commercial and industrial installations where complete circuit disconnection is required.
The C curve operating characteristic allows normal energisation of inductive loads without nuisance tripping, making the B10C4N63A well suited to motor control systems, HVAC equipment, pumps, compressors, transformers and industrial automation applications.
Typical Applications
- Industrial distribution boards.
- Three-phase control panels.
- Commercial electrical installations.
- Motor control circuits.
- HVAC systems.
- Pump and compressor installations.
- OEM machinery.
- Industrial automation systems.
Technical Specifications
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| Poles | 4-pole + N | |
|---|---|---|
| Current | 63 A | |
| Phase | Three Phase | |
| Device Type | MCB | |
| Trip Curve | C curve | |
| Breaking Capacity | 10 kA | |
| Manufacturer | IMO Precision Controls | |
| Series | B10 Miniature Circuit Breakers | |
| Model | B10C4N63A | |
| Product type | Miniature circuit breaker | |
| Configuration | 4 Pole + Neutral (4P+N) | |
| Rated current | 63 A | |
| Trip characteristic | C Curve | |
| Breaking capacity | 10 kA | |
| Rated voltage | 240/415 V AC | |
| Maximum DC voltage | 60 V DC | |
| Rated frequency | 50/60 Hz | |
| Protection mechanism | Thermal-magnetic | |
| Standard | IEC 60898-1 | |
| Protection degree | IP20 | |
| Terminal capacity | Up to 35 mm² solid or 25 mm² stranded conductor | |
| Energy limiting class | Class 3 | |
| Mechanical life | More than 20,000 operations | |
| Electrical life | Up to 4,000 operations | |
| Operating temperature | -30°C to +60°C | |
| Mounting type | 35 mm DIN rail (EN 60715) | |
| HS Code | 8536201090 | |
| Country of Manufacture | China |
Frequently Asked Questions
What is the IMO B10C4N63A used for?
The IMO B10C4N63A protects three-phase electrical circuits against overloads and short circuits while providing simultaneous switching of the neutral conductor.
What does 4P+N mean?
4P+N means the breaker switches three live phases together with a neutral pole, providing complete circuit isolation during operation or maintenance.
What current rating does the breaker have?
The IMO B10C4N63A has a 63 A rated current.
What is the short-circuit breaking capacity?
The breaker provides a 10 kA breaking capacity for reliable fault protection.
What does the C curve characteristic mean?
A C curve breaker is intended for circuits with moderate inrush currents, making it suitable for motors, transformers, pumps, compressors and other inductive equipment.
How is the B10C4N63A installed?
The breaker is designed for installation on a standard 35 mm DIN rail inside distribution boards, switchboards and industrial control panels.
Trusted by Electrical Professionals
IMO B10 miniature circuit breakers are trusted by panel builders, electrical contractors and automation engineers for dependable protection, straightforward installation and reliable long-term performance in industrial and commercial electrical systems.
